var opt_symp_v = Array(76);
var opt_symp_l = Array(76);
var opt_sess_v = Array(323);
var opt_sess_l = Array(323);

opt_symp_v[0]='S01'; opt_symp_l[0]='S01 - "Big Science" in Geology';
opt_symp_v[1]='S02'; opt_symp_l[1]='S02 - CROP - Deep Seismic Soundings in the Italian Area';
opt_symp_v[2]='S03'; opt_symp_l[2]='S03 - Cultural Heritage: International Approaches and Perspectives';
opt_symp_v[3]='S04'; opt_symp_l[3]='S04 - Deep Geologic Repositories';
opt_symp_v[4]='S05'; opt_symp_l[4]='S05 - Ethics of Peer Review System and Quality Assessment in Earth Sciences';
opt_symp_v[5]='S06'; opt_symp_l[5]='S06 - Geological Anatomy and Paleogeographic Evolution of the Mediterranean Region: the TRANSMED Project of the Mediterranean Consortium';
opt_symp_v[6]='S07'; opt_symp_l[6]='S07 - Geologic Hazards: International Approaches and Perspectives';
opt_symp_v[7]='S08'; opt_symp_l[7]='S08 - Major Discoveries in Sedimentary Geology in the Mediterranean Realm from a Historical Perspective to New Developments';
opt_symp_v[8]='S09'; opt_symp_l[8]='S09 - New Concepts in Global Tectonics';
opt_symp_v[9]='S10'; opt_symp_l[9]='S10 - Progress in International Geoscience Projects';
opt_symp_v[10]='S11'; opt_symp_l[10]='S11 - The Geological Time Scale - Recent Developments and Global Correlations';
opt_symp_v[11]='S12'; opt_symp_l[11]='S12 - The Mediterranean';
opt_symp_v[12]='S13'; opt_symp_l[12]='S13 - Uranium deposits: exploration, geology and environmental issues';
opt_symp_v[13]='S14'; opt_symp_l[13]='S14 - Bridging the gap between engineering geology and rock engineering in design and construction of underground works';
opt_symp_v[14]='T01'; opt_symp_l[14]='T01 - Accretionary Wedges and Melanges';
opt_symp_v[15]='T02'; opt_symp_l[15]='T02 - Arctic Geology';
opt_symp_v[16]='T03'; opt_symp_l[16]='T03 - Carbonate Shelves';
opt_symp_v[17]='T04'; opt_symp_l[17]='T04 - Catastrophes in Earth History';
opt_symp_v[18]='T05'; opt_symp_l[18]='T05 - CHANGES - Carbon, Hydrology and Global Environmental Systems';
opt_symp_v[19]='T06'; opt_symp_l[19]='T06 - Early Evolution of the Earth';
opt_symp_v[20]='T07'; opt_symp_l[20]='T07 - Exhumation of Orogenic Belts';
opt_symp_v[21]='T08'; opt_symp_l[21]='T08 - Exploration Geophysics';
opt_symp_v[22]='T09'; opt_symp_l[22]='T09 - Future of Energy and Resources';
opt_symp_v[23]='T10'; opt_symp_l[23]='T10 - Geographic Information Systems (GIS)';
opt_symp_v[24]='T11'; opt_symp_l[24]='T11 - Geological Hazards: Assessment and Mitigation';
opt_symp_v[25]='T12'; opt_symp_l[25]='T12 - Geological Map of the World';
opt_symp_v[26]='T13'; opt_symp_l[26]='T13 - Geology and Wine';
opt_symp_v[27]='T14'; opt_symp_l[27]='T14 - Geology of Continental Growth';
opt_symp_v[28]='T15'; opt_symp_l[28]='T15 - Geology of Continental Margins';
opt_symp_v[29]='T16'; opt_symp_l[29]='T16 - Geosciences for Cultural Heritage';
opt_symp_v[30]='T17'; opt_symp_l[30]='T17 - Geosites, Geoparks, Geotourism';
opt_symp_v[31]='T18'; opt_symp_l[31]='T18 - Geosphere-Biosphere Interactions';
opt_symp_v[32]='T19'; opt_symp_l[32]='T19 - Geotechnologies';
opt_symp_v[33]='T20'; opt_symp_l[33]='T20 - History of Geosciences';
opt_symp_v[34]='T21'; opt_symp_l[34]='T21 - Hominin Evolution across Environmental Changes';
opt_symp_v[35]='T22'; opt_symp_l[35]='T22 - Management and Application of Geoscience Information';
opt_symp_v[36]='T23'; opt_symp_l[36]='T23 - Medical Geology';
opt_symp_v[37]='T24'; opt_symp_l[37]='T24 - Mineral Growth Kinetics and Induced Stress';
opt_symp_v[38]='T25'; opt_symp_l[38]='T25 - New Geophysical Techniques for Geological Applications';
opt_symp_v[39]='T26'; opt_symp_l[39]='T26 - Ocean Drilling Program (ODP)';
opt_symp_v[40]='T27'; opt_symp_l[40]='T27 - Ophiolites and Oceanic Lithosphere';
opt_symp_v[41]='T28'; opt_symp_l[41]='T28 - Ovidius Symposium: Past and Present Global Change';
opt_symp_v[42]='T29'; opt_symp_l[42]='T29 - Paleoclimatology and Paleoceanography';
opt_symp_v[43]='T30'; opt_symp_l[43]='T30 - Peatlands and Lakes';
opt_symp_v[44]='T31'; opt_symp_l[44]='T31 - Precambrian and Paleozoic Orogenies';
opt_symp_v[45]='T32'; opt_symp_l[45]='T32 - Remote Sensing';
opt_symp_v[46]='T33'; opt_symp_l[46]='T33 - Rock alteration';
opt_symp_v[47]='T34'; opt_symp_l[47]='T34 - Sea-Level Changes';
opt_symp_v[48]='T35'; opt_symp_l[48]='T35 - Sequence Stratigraphy';
opt_symp_v[49]='T36'; opt_symp_l[49]='T36 - Ultra-High Pressure Metamorphism (UHPM): from the Nano Scale to the Plate Tectonics Scale';
opt_symp_v[50]='T37'; opt_symp_l[50]='T37 - Urban Geology';
opt_symp_v[51]='T38'; opt_symp_l[51]='T38 - Water Management';
opt_symp_v[52]='G01'; opt_symp_l[52]='G01 - Earth Interior';
opt_symp_v[53]='G02'; opt_symp_l[53]='G02 - Engineering Geology';
opt_symp_v[54]='G03'; opt_symp_l[54]='G03 - Environmental Geology';
opt_symp_v[55]='G04'; opt_symp_l[55]='G04 - Geochemistry';
opt_symp_v[56]='G05'; opt_symp_l[56]='G05 - Geodynamics';
opt_symp_v[57]='G06'; opt_symp_l[57]='G06 - Geomagnetism';
opt_symp_v[58]='G07'; opt_symp_l[58]='G07 - Geomorphology';
opt_symp_v[59]='G08'; opt_symp_l[59]='G08 - Geoscience Education and Geoethics';
opt_symp_v[60]='G09'; opt_symp_l[60]='G09 - Hydrogeology';
opt_symp_v[61]='G10'; opt_symp_l[61]='G10 - Igneous and Metamorphic Petrology';
opt_symp_v[62]='G11'; opt_symp_l[62]='G11 - Isotope Geochemistry';
opt_symp_v[63]='G12'; opt_symp_l[63]='G12 - Marine Geology';
opt_symp_v[64]='G13'; opt_symp_l[64]='G13 - Mathematical Geology';
opt_symp_v[65]='G14'; opt_symp_l[65]='G14 - Mineral Deposits';
opt_symp_v[66]='G15'; opt_symp_l[66]='G15 - Mineralogy';
opt_symp_v[67]='G16'; opt_symp_l[67]='G16 - Neotectonics/Paleoseismology';
opt_symp_v[68]='G17'; opt_symp_l[68]='G17 - Paleontology';
opt_symp_v[69]='G18'; opt_symp_l[69]='G18 - Planetary Geology';
opt_symp_v[70]='G19'; opt_symp_l[70]='G19 - Quaternary Geology';
opt_symp_v[71]='G20'; opt_symp_l[71]='G20 - Regional Geology';
opt_symp_v[72]='G21'; opt_symp_l[72]='G21 - Sedimentology';
opt_symp_v[73]='G22'; opt_symp_l[73]='G22 - Stratigraphy';
opt_symp_v[74]='G23'; opt_symp_l[74]='G23 - Structural Geology';
opt_symp_v[75]='G24'; opt_symp_l[75]='G24 - Volcanology';

i=0;
opt_sess_v[i]='S01.01'; opt_sess_l[i++]='S01.01 - "Big Science" in Geology';
opt_sess_v[i]='S02.01'; opt_sess_l[i++]='S02.01 - CROP - Deep Seismic Soundings in the Italian Area';
opt_sess_v[i]='S03.01'; opt_sess_l[i++]='S03.01 - Cultural Heritage: International Approaches and Perspectives';
opt_sess_v[i]='S04.01'; opt_sess_l[i++]='S04.01 - Deep Geologic Repositories';
opt_sess_v[i]='S05.01'; opt_sess_l[i++]='S05.01 - Ethics of Peer Review System and Quality Assessment in Earth Sciences';
opt_sess_v[i]='S06.01'; opt_sess_l[i++]='S06.01 - Geological Anatomy and Paleogeographic Evolution of the Mediterranean Region: the TRANSMED Project of the Mediterranean Consortium';
opt_sess_v[i]='S07.01'; opt_sess_l[i++]='S07.01 - Geologic Hazards: International Approaches and Perspectives';
opt_sess_v[i]='S08.01'; opt_sess_l[i++]='S08.01 - Major Discoveries in Sedimentary Geology in the Mediterranean Realm from a Historical Perspective to New Developments';
opt_sess_v[i]='S09.01'; opt_sess_l[i++]='S09.01 - New Concepts in Global Tectonics';
opt_sess_v[i]='S10.01'; opt_sess_l[i++]='S10.01 - Progress in International Geoscience Projects';
opt_sess_v[i]='S11.01'; opt_sess_l[i++]='S11.01 - The Geological Time Scale - Recent Developments and Global Correlations';
opt_sess_v[i]='S12.01'; opt_sess_l[i++]='S12.01 - The Mediterranean';
opt_sess_v[i]='S13.01'; opt_sess_l[i++]='S13.01 - Uranium deposits: exploration, geology and environmental issues';
opt_sess_v[i]='S14.01'; opt_sess_l[i++]='S14.01 - Bridging the gap between engineering geology and rock engineering in design and construction of underground works';
opt_sess_v[i]='T01.01'; opt_sess_l[i++]='T01.01 - Olistostromes and tectonosomes in melanges of accretionary wedges';
opt_sess_v[i]='T01.02'; opt_sess_l[i++]='T01.02 - Transport of continental material toward the mantle at subduction zones: evidence from modern and ancient convergent margins';
opt_sess_v[i]='T02.01'; opt_sess_l[i++]='T02.01 - Structural elements of the Arctic Ocean: geology and geophysics';
opt_sess_v[i]='T03.01'; opt_sess_l[i++]='T03.01 - Reef and carbonate platform sedimentation';
opt_sess_v[i]='T03.02'; opt_sess_l[i++]='T03.02 - Depositional rhythms on carbonate platforms';
opt_sess_v[i]='T03.03'; opt_sess_l[i++]='T03.03 - Tectonic controls on the siting, evolution and demise of carbonate platforms';
opt_sess_v[i]='T03.04'; opt_sess_l[i++]='T03.04 - Cretaceous carbonate platform biostratigraphy, paleoecology and sedimentology';
opt_sess_v[i]='T04.01'; opt_sess_l[i++]='T04.01 - Mass extinctions and other large ecosystem perturbations: extraterrestrial and terrestrial causes';
opt_sess_v[i]='T04.02'; opt_sess_l[i++]='T04.02 - Late Permian-Early Triassic events';
opt_sess_v[i]='T04.03'; opt_sess_l[i++]='T04.03 - Triassic-Jurassic boundary events';
opt_sess_v[i]='T04.04'; opt_sess_l[i++]='T04.04 - K/T boundary events';
opt_sess_v[i]='T05.01'; opt_sess_l[i++]='T05.01 - World correlation on karst ecosystems';
opt_sess_v[i]='T05.02'; opt_sess_l[i++]='T05.02 - The carbon cycle and hydrology in the paleo-terrestrial environment';
opt_sess_v[i]='T05.03'; opt_sess_l[i++]='T05.03 - Continental shelves during the last glacial cycle';
opt_sess_v[i]='T05.04'; opt_sess_l[i++]='T05.04 - Drylands in the last glacial cycle';
opt_sess_v[i]='T06.01'; opt_sess_l[i++]='T06.01 - Early Earth systems';
opt_sess_v[i]='T06.02'; opt_sess_l[i++]='T06.02 - Geochemical environment of the genesis of life';
opt_sess_v[i]='T06.03'; opt_sess_l[i++]='T06.03 - Dynamics of the Earth during Archean and Proterozoic';
opt_sess_v[i]='T06.04'; opt_sess_l[i++]='T06.04 - Molar tooth structures and Precambrian carbonate facies';
opt_sess_v[i]='T07.01'; opt_sess_l[i++]='T07.01 - Climate and surface process as they relate to erosional exhumation';
opt_sess_v[i]='T07.02'; opt_sess_l[i++]='T07.02 - Detrital thermochronology: the sedimentary record of orogenesis';
opt_sess_v[i]='T07.03'; opt_sess_l[i++]='T07.03 - Structural and thermochronologic observations for deep exhumation';
opt_sess_v[i]='T07.04'; opt_sess_l[i++]='T07.04 - Geodynamic models for tectonic exhumation';
opt_sess_v[i]='T08.01'; opt_sess_l[i++]='T08.01 - New trends in reservoir characterisation';
opt_sess_v[i]='T08.04'; opt_sess_l[i++]='T08.04 - Magnetotellurics';
opt_sess_v[i]='T09.01'; opt_sess_l[i++]='T09.01 - Fossil fuels';
opt_sess_v[i]='T09.02'; opt_sess_l[i++]='T09.02 - Petroleum systems in deep-water settings';
opt_sess_v[i]='T09.04'; opt_sess_l[i++]='T09.04 - Methane hydrates';
opt_sess_v[i]='T09.05'; opt_sess_l[i++]='T09.05 - CO2 confinement';
opt_sess_v[i]='T09.06'; opt_sess_l[i++]='T09.06 - Geothermal fields';
opt_sess_v[i]='T09.07'; opt_sess_l[i++]='T09.07 - Global and continental-scale mineral resources assessments';
opt_sess_v[i]='T10.01'; opt_sess_l[i++]='T10.01 - Synergy of GIS technology and the Earth Sciences: current state and future prospects';
opt_sess_v[i]='T10.02'; opt_sess_l[i++]='T10.02 - Parallel n-dimensional GIS';
opt_sess_v[i]='T10.03'; opt_sess_l[i++]='T10.03 - Geology as it is: in three dimensions';
opt_sess_v[i]='T10.04'; opt_sess_l[i++]='T10.04 - Topography and digital terrain models';
opt_sess_v[i]='T10.05'; opt_sess_l[i++]='T10.05 - GIS application to map production';
opt_sess_v[i]='T11.01'; opt_sess_l[i++]='T11.01 - Toward an epistemic community for integrating geology, natural hazards, and cultural heritage';
opt_sess_v[i]='T11.02'; opt_sess_l[i++]='T11.02 - Natural and anthropogenic land subsidence in populated areas';
opt_sess_v[i]='T11.03'; opt_sess_l[i++]='T11.03 - Fractal analysis for natural hazards';
opt_sess_v[i]='T11.04'; opt_sess_l[i++]='T11.04 - Interaction between volcanoes and their basement and related geological hazards';
opt_sess_v[i]='T11.05'; opt_sess_l[i++]='T11.05 - Eruption scenarios forecasting and volcanic hazards mapping';
opt_sess_v[i]='T11.06'; opt_sess_l[i++]='T11.06 - Geochemical surveillance of volcanic and seismic active areas';
opt_sess_v[i]='T11.07'; opt_sess_l[i++]='T11.07 - Paleoseismology, seismic hazard and Quaternary geological evidence for earthquake deformation and faulting';
opt_sess_v[i]='T11.08'; opt_sess_l[i++]='T11.08 - Geological data and seismic hazard maps';
opt_sess_v[i]='T11.09'; opt_sess_l[i++]='T11.09 - Seismic risks in urban areas';
opt_sess_v[i]='T11.10'; opt_sess_l[i++]='T11.10 - GIS technology and statistical modeling for assessing landslide hazard and risk';
opt_sess_v[i]='T11.11'; opt_sess_l[i++]='T11.11 - Geologic and geomorphologic influence in the precipitation / runoff relationships';
opt_sess_v[i]='T11.12'; opt_sess_l[i++]='T11.12 - River dynamics and floodings';
opt_sess_v[i]='T11.13'; opt_sess_l[i++]='T11.13 - Rapid moving landslide: monitoring, hazard and risk evaluations';
opt_sess_v[i]='T11.14'; opt_sess_l[i++]='T11.14 - Slow moving landslide: monitoring, hazard and risk evaluations';
opt_sess_v[i]='T11.15'; opt_sess_l[i++]='T11.15 - Tsunami hazard from slope instability';
opt_sess_v[i]='T12.01'; opt_sess_l[i++]='T12.01 - Earth imaging: modeling and databanks. A prospective for the 21st century after more than a hundred years of mapping experience';
opt_sess_v[i]='T12.02'; opt_sess_l[i++]='T12.02 - Building on tradition: the joint European enterprise of the 1:5,000,000 international geological map of Europe and adjacent areas';
opt_sess_v[i]='T12.03'; opt_sess_l[i++]='T12.03 - Metamorphic and geodynamic evolution of the Alps: a view through the new synthetic map';
opt_sess_v[i]='T13.01'; opt_sess_l[i++]='T13.01 - Terroir- the connection between geology and wine';
opt_sess_v[i]='T14.01'; opt_sess_l[i++]='T14.01 - Precambrian and Phanerozoic crustal evolution and continental growth';
opt_sess_v[i]='T14.02'; opt_sess_l[i++]='T14.02 - Tectonics of the turkic-type orogens and the geology of continental growth';
opt_sess_v[i]='T15.01'; opt_sess_l[i++]='T15.01 - Margin development/sedimentary processes and controls';
opt_sess_v[i]='T15.02'; opt_sess_l[i++]='T15.02 - Geo-political aspects of continental margins';
opt_sess_v[i]='T15.03'; opt_sess_l[i++]='T15.03 - Gas hydrates';
opt_sess_v[i]='T15.04'; opt_sess_l[i++]='T15.04 - Submarine slope instability';
opt_sess_v[i]='T15.05'; opt_sess_l[i++]='T15.05 - Coral ecosystems related to fluid venting';
opt_sess_v[i]='T15.06'; opt_sess_l[i++]='T15.06 - Ultra high-resolution studies of prodelta systems';
opt_sess_v[i]='T16.01'; opt_sess_l[i++]='T16.01 - Geoarcheometry: geo-materials in cultural heritage';
opt_sess_v[i]='T16.02'; opt_sess_l[i++]='T16.02 - Deterioration and conservation';
opt_sess_v[i]='T16.03'; opt_sess_l[i++]='T16.03 - Building and decorative stones';
opt_sess_v[i]='T16.04'; opt_sess_l[i++]='T16.04 - Geoarcheology for climatic changes and catastrophic events in human history';
opt_sess_v[i]='T16.06'; opt_sess_l[i++]='T16.06 - Natural hazards and cultural heritage';
opt_sess_v[i]='T16.07'; opt_sess_l[i++]='T16.07 - Geoprospecting applied to archeology';
opt_sess_v[i]='T17.01'; opt_sess_l[i++]='T17.01 - Geomorphological sites in a cultural integrated landscape';
opt_sess_v[i]='T17.02'; opt_sess_l[i++]='T17.02 - Cities at risk, geotourism-geoparks, conflict of economy and ecology';
opt_sess_v[i]='T17.03'; opt_sess_l[i++]='T17.03 - Geological heritage and tourism';
opt_sess_v[i]='T17.04'; opt_sess_l[i++]='T17.04 - Geology - maker of cultural and geological heritage: geosites under threat';
opt_sess_v[i]='T17.05'; opt_sess_l[i++]='T17.05 - Myth and geology';
opt_sess_v[i]='T18.01'; opt_sess_l[i++]='T18.01 - Deep biosphere';
opt_sess_v[i]='T18.02'; opt_sess_l[i++]='T18.02 - Biomineralization in the Cretaceous oceans';
opt_sess_v[i]='T18.03'; opt_sess_l[i++]='T18.03 - Microbial communities as geologic agents';
opt_sess_v[i]='T18.04'; opt_sess_l[i++]='T18.04 - Chemosynthetic communities through time';
opt_sess_v[i]='T19.01'; opt_sess_l[i++]='T19.01 - New insights of cathodoluminescence for geomaterials and advanced research in applied geology';
opt_sess_v[i]='T19.02'; opt_sess_l[i++]='T19.02 - Computerised x-ray tomography applications in geology';
opt_sess_v[i]='T20.01'; opt_sess_l[i++]='T20.01 - Origin of modern geology in Italy';
opt_sess_v[i]='T20.02'; opt_sess_l[i++]='T20.02 - Institutions, museums and scientific societies in the history of geosciences';
opt_sess_v[i]='T21.01'; opt_sess_l[i++]='T21.01 - Hominin evolution across environmental changes';
opt_sess_v[i]='T22.01'; opt_sess_l[i++]='T22.01 - National / international geological map databases';
opt_sess_v[i]='T22.02'; opt_sess_l[i++]='T22.02 - Examples of innovative geoscience information delivery';
opt_sess_v[i]='T22.03'; opt_sess_l[i++]='T22.03 - Dictionaries, standards and technologies for geoscience data management and delivery';
opt_sess_v[i]='T23.01'; opt_sess_l[i++]='T23.01 - The effects of natural environments on the health of humans and animals';
opt_sess_v[i]='T23.02'; opt_sess_l[i++]='T23.02 - Fibrous structure and health effects: asbestos from an occupational to an environmental hazard';
opt_sess_v[i]='T24.01'; opt_sess_l[i++]='T24.01 - Mineral reactions in rocks: induced stress and pattern formation';
opt_sess_v[i]='T25.01'; opt_sess_l[i++]='T25.01 - Very high resolution seismics';
opt_sess_v[i]='T25.02'; opt_sess_l[i++]='T25.02 - Seafloor imaging';
opt_sess_v[i]='T25.03'; opt_sess_l[i++]='T25.03 - Ground-penetrating radar';
opt_sess_v[i]='T25.04'; opt_sess_l[i++]='T25.04 - Rock physics versus lithology';
opt_sess_v[i]='T26.01'; opt_sess_l[i++]='T26.01 - Recent results from ODP cruises';
opt_sess_v[i]='T27.01'; opt_sess_l[i++]='T27.01 - Igneous petrogenesis of ophiolites';
opt_sess_v[i]='T27.02'; opt_sess_l[i++]='T27.02 - Melt and fluid flow in evolution of oceanic lithosphere';
opt_sess_v[i]='T27.03'; opt_sess_l[i++]='T27.03 - Emplacement tectonics of ophiolites: structures and processes';
opt_sess_v[i]='T27.04'; opt_sess_l[i++]='T27.04 - Ophiolites and suture zones of the Tethysides';
opt_sess_v[i]='T27.05'; opt_sess_l[i++]='T27.05 - Record of oceanic rocks in Precambrian and Early Phanerozoic times';
opt_sess_v[i]='T27.06'; opt_sess_l[i++]='T27.06 - Ophiolites of the Circum-Pacific orogenic belts';
opt_sess_v[i]='T28.01'; opt_sess_l[i++]='T28.01 - Past and present global change: changes, shifts and metamorphoses';
opt_sess_v[i]='T29.01'; opt_sess_l[i++]='T29.01 - Cenozoic antarctic glacial history';
opt_sess_v[i]='T29.02'; opt_sess_l[i++]='T29.02 - Sapropels and black shales';
opt_sess_v[i]='T29.03'; opt_sess_l[i++]='T29.03 - Middle to late Miocene changes in the ocean-climate system';
opt_sess_v[i]='T29.04'; opt_sess_l[i++]='T29.04 - Carbon burial events and rapid global changes';
opt_sess_v[i]='T29.06'; opt_sess_l[i++]='T29.06 - Magnetic evidence of climate change on millennial to Milankovitch time scale';
opt_sess_v[i]='T29.07'; opt_sess_l[i++]='T29.07 - Marine isotope stage 11 - an equivalent to the Holocene?';
opt_sess_v[i]='T29.08'; opt_sess_l[i++]='T29.08 - Non-orbital climate changes in the Pleistocene';
opt_sess_v[i]='T29.09'; opt_sess_l[i++]='T29.09 - Early-Middle Pleistocene transition';
opt_sess_v[i]='T29.10'; opt_sess_l[i++]='T29.10 - Cretaceous Oceanic Red Beds (CORB): response to paleoclimatic / paleoceanographical global changes, and regional tectonics';
opt_sess_v[i]='T29.11'; opt_sess_l[i++]='T29.11 - Late Paleozoic glacial events and postglacial transgressions in Gondwana';
opt_sess_v[i]='T30.01'; opt_sess_l[i++]='T30.01 - Peatlands: basin evolution and depository of records on global environmental and climatic changes';
opt_sess_v[i]='T30.02'; opt_sess_l[i++]='T30.02 - Geological and environmental evolution of Alpine-Type lakes';
opt_sess_v[i]='T31.01'; opt_sess_l[i++]='T31.01 - Tectonics of Precambrian mobile belts';
opt_sess_v[i]='T31.02'; opt_sess_l[i++]='T31.02 - The evolution of Rodinia: Mesoproterozoic assembly and Neoproterozoic breakup';
opt_sess_v[i]='T31.03'; opt_sess_l[i++]='T31.03 - Neoproterozoic to Early Paleozoic orogenic processes at the northern margin of Gondwana (Avalonian-Cadomian orogenic belt)';
opt_sess_v[i]='T31.04'; opt_sess_l[i++]='T31.04 - Structural, metamorphic and magmatic evolution of the Hercynian belt';
opt_sess_v[i]='T32.01'; opt_sess_l[i++]='T32.01 - Hyperspectral remote sensing';
opt_sess_v[i]='T32.02'; opt_sess_l[i++]='T32.02 - Application of remote sensing in geological prospecting';
opt_sess_v[i]='T32.03'; opt_sess_l[i++]='T32.03 - Applications of remote sensing to geological mapping';
opt_sess_v[i]='T32.04'; opt_sess_l[i++]='T32.04 - Remote sensing for mapping and monitoring geological hazards';
opt_sess_v[i]='T33.01'; opt_sess_l[i++]='T33.01 - Rock alteration and weathering products';
opt_sess_v[i]='T34.01'; opt_sess_l[i++]='T34.01 - Sea level during the last interglacial';
opt_sess_v[i]='T34.02'; opt_sess_l[i++]='T34.02 - Sea-level change since the last glacial maximum';
opt_sess_v[i]='T34.03'; opt_sess_l[i++]='T34.03 - Dating Caspian sea-level change';
opt_sess_v[i]='T35.01'; opt_sess_l[i++]='T35.01 - Sequence stratigraphy of continental and coastal deposits';
opt_sess_v[i]='T35.02'; opt_sess_l[i++]='T35.02 - Sequence stratigraphy in deep-marine settings';
opt_sess_v[i]='T36.01'; opt_sess_l[i++]='T36.01 - UHPM: minerals and microstructures';
opt_sess_v[i]='T36.02'; opt_sess_l[i++]='T36.02 - UHPM: Geochronology';
opt_sess_v[i]='T36.03'; opt_sess_l[i++]='T36.03 - UHPM: Fluid-rock interaction';
opt_sess_v[i]='T36.04'; opt_sess_l[i++]='T36.04 - UHPM: General petrology and geothermobarometry';
opt_sess_v[i]='T36.06'; opt_sess_l[i++]='T36.06 - UHPM: Geodynamic modeling';
opt_sess_v[i]='T37.01'; opt_sess_l[i++]='T37.01 - Geosciences in the cities';
opt_sess_v[i]='T37.02'; opt_sess_l[i++]='T37.02 - Geosciences for underground development of cities';
opt_sess_v[i]='T37.03'; opt_sess_l[i++]='T37.03 - Assessment of, and responses to geological hazards and risks in urban areas';
opt_sess_v[i]='T38.01'; opt_sess_l[i++]='T38.01 - Groundwater management in vulnerable areas';
opt_sess_v[i]='T38.02'; opt_sess_l[i++]='T38.02 - Groundwater management in urban areas';
opt_sess_v[i]='T38.03'; opt_sess_l[i++]='T38.03 - Groundwater resource problems in the Mediterranean area: quantity and quality';
opt_sess_v[i]='T38.05'; opt_sess_l[i++]='T38.05 - Sustainable groundwater development for poverty mitigation in low-income countries';
opt_sess_v[i]='T38.06'; opt_sess_l[i++]='T38.06 - Hydrogeology of small islands and coastal aquifers';
opt_sess_v[i]='G01.02'; opt_sess_l[i++]='G01.02 - Mantle plumes, hot spots and the geodynamics of continental rifting and break-up';
opt_sess_v[i]='G01.03'; opt_sess_l[i++]='G01.03 - Geophysical and petrological constraints to the modeling of the upper mantle';
opt_sess_v[i]='G01.04'; opt_sess_l[i++]='G01.04 - Melting, metasomatism and metamorphic evolution in the lithospheric mantle: orogenic lherzolites and mantle xenoliths';
opt_sess_v[i]='G01.05'; opt_sess_l[i++]="G01.05 - Mineralogical properties of Earth's mantle";
opt_sess_v[i]='G01.06'; opt_sess_l[i++]='G01.06 - Structure, evolution and composition of the continental mantle lithosphere: integrated models based on geophysical, geochemical and petrological studies';
opt_sess_v[i]='G01.07'; opt_sess_l[i++]='G01.07 - Subduction zones: reconciling experimental constraints to natural records';
opt_sess_v[i]='G02.01'; opt_sess_l[i++]='G02.01 - Engineering geology related to large civil and mining engineering works';
opt_sess_v[i]='G02.02'; opt_sess_l[i++]='G02.02 - Progress in geotechnical classification';
opt_sess_v[i]='G02.03'; opt_sess_l[i++]='G02.03 - The interplay between soil and rock mechanics and engineering geology related to stability assessment for slopes and underground works';
opt_sess_v[i]='G02.04'; opt_sess_l[i++]='G02.04 - Ground subsidence and collapses';
opt_sess_v[i]='G02.05'; opt_sess_l[i++]='G02.05 - Construction materials for large engineering works';
opt_sess_v[i]='G02.06'; opt_sess_l[i++]='G02.06 - Site investigations, testing and monitoring in engineering geology';
opt_sess_v[i]='G02.07'; opt_sess_l[i++]='G02.07 - Siting and design of critical industrial facilities/infrastructures';
opt_sess_v[i]='G02.08'; opt_sess_l[i++]='G02.08 - Waste disposal industry';
opt_sess_v[i]='G03.01'; opt_sess_l[i++]='G03.01 - Function of soils for human societies and the environment';
opt_sess_v[i]='G03.02'; opt_sess_l[i++]='G03.02 - Geology and desertification';
opt_sess_v[i]='G03.03'; opt_sess_l[i++]='G03.03 - Coastline changes: interrelation of climate and geologic processes';
opt_sess_v[i]='G03.04'; opt_sess_l[i++]='G03.04 - Biogeochemical studies of the environmental impacts of mining on ground- and surface waters';
opt_sess_v[i]='G03.05'; opt_sess_l[i++]='G03.05 - Water rock interaction: acid mine drainage';
opt_sess_v[i]='G03.06'; opt_sess_l[i++]='G03.06 - Contribution of mineralogy and geochemistry to understanding pollutants behavior';
opt_sess_v[i]='G03.08'; opt_sess_l[i++]='G03.08 - Statistical and mathematical methods in land resource survey: application to environmental geochemistry';
opt_sess_v[i]='G03.09'; opt_sess_l[i++]='G03.09 - The Earth surface environment: present and future. Role of the environmental metrology';
opt_sess_v[i]='G03.10'; opt_sess_l[i++]='G03.10 - Geoindicators: methods and techniques for monitoring rapid geologic change';
opt_sess_v[i]='G03.11'; opt_sess_l[i++]='G03.11 - International borders - Geoenvironmental concerns';
opt_sess_v[i]='G03.12'; opt_sess_l[i++]='G03.12 - Rapid and catastrophic geological changes and societal response';
opt_sess_v[i]='G04.01'; opt_sess_l[i++]='G04.01 - Frontiers in analytical geochemistry';
opt_sess_v[i]='G04.02'; opt_sess_l[i++]='G04.02 - Li, Be, B: advances in analysis and implications for earth and environmental science';
opt_sess_v[i]='G04.03'; opt_sess_l[i++]='G04.03 - Silicate melts: from laboratory to natural magma';
opt_sess_v[i]='G04.04'; opt_sess_l[i++]='G04.04 - Kinetics of geochemical reactions';
opt_sess_v[i]='G04.05'; opt_sess_l[i++]='G04.05 - Organic geochemistry';
opt_sess_v[i]='G05.01'; opt_sess_l[i++]='G05.01 - Structure and evolution of oceanic lithosphere';
opt_sess_v[i]='G05.03'; opt_sess_l[i++]='G05.03 - Melting and the rheology of the crust and upper mantle: what significance for geodynamics?';
opt_sess_v[i]='G05.04'; opt_sess_l[i++]='G05.04 - Deep seated tectonics in subduction-collision belts: kinematics of structural and metamorphic crustal units';
opt_sess_v[i]='G05.05'; opt_sess_l[i++]='G05.05 - From atoms to lithospheres - microstructural influence and control on dynamic processes';
opt_sess_v[i]='G05.06'; opt_sess_l[i++]='G05.06 - Space geodesy and plate motion';
opt_sess_v[i]='G05.07'; opt_sess_l[i++]="G05.07 - Supercontinents in Earth's history";
opt_sess_v[i]='G05.08'; opt_sess_l[i++]='G05.08 - Tectonics of shield areas';
opt_sess_v[i]='G05.09'; opt_sess_l[i++]='G05.09 - Tethys reconstruction';
opt_sess_v[i]='G05.10'; opt_sess_l[i++]='G05.10 - Flat subduction in the Andes and related orogenic systems';
opt_sess_v[i]='G05.11'; opt_sess_l[i++]='G05.11 - Cenozoic evolution in the Mediterranean systems: constraints from paleomagnetism';
opt_sess_v[i]='G05.12'; opt_sess_l[i++]='G05.12 - Stable continental region earthquakes';
opt_sess_v[i]='G06.01'; opt_sess_l[i++]='G06.01 - Geomagnetic polarities and field reversals';
opt_sess_v[i]='G06.02'; opt_sess_l[i++]='G06.02 - Secular variations in geomagnetism';
opt_sess_v[i]='G07.01'; opt_sess_l[i++]='G07.01 - Geomorphologic effects of global change';
opt_sess_v[i]='G07.02'; opt_sess_l[i++]='G07.02 - Landscape sensitivity';
opt_sess_v[i]='G07.03'; opt_sess_l[i++]='G07.03 - Sustainability related to geomorphological processes and resources';
opt_sess_v[i]='G07.04'; opt_sess_l[i++]='G07.04 - New technologies for the analysis of landscape evolution';
opt_sess_v[i]='G07.05'; opt_sess_l[i++]='G07.05 - Geomorphometry and topographic analysis';
opt_sess_v[i]='G08.01'; opt_sess_l[i++]='G08.01 - Earth science education for lay people: understanding our life support systems';
opt_sess_v[i]='G08.02'; opt_sess_l[i++]='G08.02 - Geoscience education for sustainable development of natural resources';
opt_sess_v[i]='G08.03'; opt_sess_l[i++]='G08.03 - Geoethics I: Earth resources';
opt_sess_v[i]='G08.04'; opt_sess_l[i++]='G08.04 - Geoethics II: other problems';
opt_sess_v[i]='G08.05'; opt_sess_l[i++]='G08.05 - Promoting geoscience education worldwide - at school level';
opt_sess_v[i]='G08.06'; opt_sess_l[i++]='G08.06 - Promoting geoscience education worldwide - in colleges and universities';
opt_sess_v[i]='G08.07'; opt_sess_l[i++]='G08.07 - Promoting geosciences through public outreach and communication';
opt_sess_v[i]='G09.01'; opt_sess_l[i++]='G09.01 - Groundwater in porous media';
opt_sess_v[i]='G09.02'; opt_sess_l[i++]='G09.02 - Groundwater in karst and in fractured rocks';
opt_sess_v[i]='G09.03'; opt_sess_l[i++]='G09.03 - Surface water and groundwater interaction';
opt_sess_v[i]='G09.04'; opt_sess_l[i++]='G09.04 - Hydrogeological modeling for the improvement of water budget and environmental problems';
opt_sess_v[i]='G09.05'; opt_sess_l[i++]='G09.05 - Impact of climatic changes on groundwater resources';
opt_sess_v[i]='G10.01'; opt_sess_l[i++]='G10.01 - From diagenesis to low grade metamorphism';
opt_sess_v[i]='G10.02'; opt_sess_l[i++]='G10.02 - Ductile shear zones and metamorphism';
opt_sess_v[i]='G10.03'; opt_sess_l[i++]='G10.03 - Chaos, fractals and non-linear dynamics in rock genesis and deformation';
opt_sess_v[i]='G10.04'; opt_sess_l[i++]='G10.04 - Granitoid magmatism and geodynamics';
opt_sess_v[i]='G10.05'; opt_sess_l[i++]='G10.05 - Alkaline and carbonatitic magmatism and related ore deposits';
opt_sess_v[i]='G10.06'; opt_sess_l[i++]='G10.06 - Cenozoic volcanism in the Mediterranean area';
opt_sess_v[i]='G10.07'; opt_sess_l[i++]='G10.07 - Arc magmatism and geodynamics';
opt_sess_v[i]='G10.08'; opt_sess_l[i++]='G10.08 - Large igneous provinces';
opt_sess_v[i]='G11.01'; opt_sess_l[i++]='G11.01 - Stable isotope geochemistry';
opt_sess_v[i]='G11.02'; opt_sess_l[i++]='G11.02 - Isotope geochemistry in paleoclimatological and paleoenvironmental studies';
opt_sess_v[i]='G11.03'; opt_sess_l[i++]='G11.03 - Isotopic and chemical tracers of water-rock interaction in natural and contaminated systems';
opt_sess_v[i]='G11.04'; opt_sess_l[i++]='G11.04 - Application of cosmogenic nuclides to the study of Earth surface processes: the practice and the potential';
opt_sess_v[i]='G11.05'; opt_sess_l[i++]='G11.05 - Decay constants for geochronology';
opt_sess_v[i]='G12.01'; opt_sess_l[i++]='G12.01 - Gravitational transport processes in modern oceans';
opt_sess_v[i]='G12.02'; opt_sess_l[i++]='G12.02 - Stability of oceanic volcano slopes';
opt_sess_v[i]='G12.03'; opt_sess_l[i++]='G12.03 - Submarine hydrothermalism in the Mediterranean Sea';
opt_sess_v[i]='G12.04'; opt_sess_l[i++]='G12.04 - Hydrothermal mineralization on sedimented ridges';
opt_sess_v[i]='G13.01'; opt_sess_l[i++]='G13.01 - Compositional data analysis: from theory to practice';
opt_sess_v[i]='G13.03'; opt_sess_l[i++]='G13.03 - New applications of mathematical statistics in Earth Sciences';
opt_sess_v[i]='G13.04'; opt_sess_l[i++]='G13.04 - Geographic information system for exploratory spatial data analysis';
opt_sess_v[i]='G13.05'; opt_sess_l[i++]='G13.05 - Understanding geology through geomathematical analysis of remote sensing data';
opt_sess_v[i]='G13.06'; opt_sess_l[i++]='G13.06 - Mathematical geology for resource exploration';
opt_sess_v[i]='G14.01'; opt_sess_l[i++]='G14.01 - Mineral deposits associated with black shales';
opt_sess_v[i]='G14.02'; opt_sess_l[i++]='G14.02 - Mineral deposits and tectonics of central Asia';
opt_sess_v[i]='G14.03'; opt_sess_l[i++]='G14.03 - New developments in tin, tungsten and other rare metal deposits';
opt_sess_v[i]='G14.04'; opt_sess_l[i++]='G14.04 - Recent developments in marine minerals';
opt_sess_v[i]='G14.05'; opt_sess_l[i++]='G14.05 - Gold deposits in various geological environments';
opt_sess_v[i]='G14.06'; opt_sess_l[i++]='G14.06 - Conventional and unconventional platinum mineralizations';
opt_sess_v[i]='G14.07'; opt_sess_l[i++]='G14.07 - Telluride and selenide minerals related to gold- and platinum-group element deposits';
opt_sess_v[i]='G14.08'; opt_sess_l[i++]='G14.08 - Mineralization associated with mafic and ultramafic igneous rocks';
opt_sess_v[i]='G14.09'; opt_sess_l[i++]='G14.09 - Metallogeny of large and super large mineral deposits';
opt_sess_v[i]='G15.01'; opt_sess_l[i++]='G15.01 - Reacting surfaces and interfaces of minerals';
opt_sess_v[i]='G15.02'; opt_sess_l[i++]='G15.02 - Mineral thermodynamics, mineral equilibria, and PT-paths';
opt_sess_v[i]='G15.03'; opt_sess_l[i++]='G15.03 - Crystal structures of minerals: topology and classification';
opt_sess_v[i]='G15.04'; opt_sess_l[i++]='G15.04 - Microstructures, modularity, modulations in minerals';
opt_sess_v[i]='G15.05'; opt_sess_l[i++]="G15.05 - Mineral engineering: from nature's lab to technologic applications";
opt_sess_v[i]='G15.06'; opt_sess_l[i++]='G15.06 - Physics of minerals: mineral spectroscopy';
opt_sess_v[i]='G15.07'; opt_sess_l[i++]='G15.07 - High pressure mineralogy';
opt_sess_v[i]='G15.08'; opt_sess_l[i++]='G15.08 - Natural zeolites: structure, properties and applications';
opt_sess_v[i]='G15.09'; opt_sess_l[i++]='G15.09 - Biomineralogy and organic minerals';
opt_sess_v[i]='G15.10'; opt_sess_l[i++]='G15.10 - Gem materials';
opt_sess_v[i]='G15.11'; opt_sess_l[i++]='G15.11 - Mineral inclusions';
opt_sess_v[i]='G16.01'; opt_sess_l[i++]='G16.01 - Neotectonics and related applications';
opt_sess_v[i]='G16.02'; opt_sess_l[i++]='G16.02 - Seismicity and active tectonics';
opt_sess_v[i]='G16.03'; opt_sess_l[i++]='G16.03 - Morphotectonics';
opt_sess_v[i]='G16.04'; opt_sess_l[i++]='G16.04 - Geomorphic signature of large active faults';
opt_sess_v[i]='G16.05'; opt_sess_l[i++]='G16.05 - Recurrence of large earthquakes: data gathering and modeling';
opt_sess_v[i]='G17.01'; opt_sess_l[i++]='G17.01 - Computer techniques in the modeling and analysis of biological form, growth and evolution';
opt_sess_v[i]='G17.02'; opt_sess_l[i++]='G17.02 - Advanced methodologies in paleontology and related fields';
opt_sess_v[i]='G17.03'; opt_sess_l[i++]='G17.03 - Paleobiodiversity and major biotic changes in Earth history';
opt_sess_v[i]='G17.04'; opt_sess_l[i++]='G17.04 - Environmental micropaleontology';
opt_sess_v[i]='G17.05'; opt_sess_l[i++]='G17.05 - Radiolaria and radiolarites in orogenic belts';
opt_sess_v[i]='G17.06'; opt_sess_l[i++]='G17.06 - Invertebrate paleontology';
opt_sess_v[i]='G17.07'; opt_sess_l[i++]='G17.07 - Vertebrate paleontology';
opt_sess_v[i]='G17.08'; opt_sess_l[i++]='G17.08 - Fossil lagerstätten';
opt_sess_v[i]='G17.09'; opt_sess_l[i++]='G17.09 - Terrestrial tetrapod ichnofacies and ichnotaxonomy';
opt_sess_v[i]='G17.10'; opt_sess_l[i++]='G17.10 - The paleobiogeographic history of the Tethys and Mediterranean: evidence from land vertebrate distribution';
opt_sess_v[i]='G18.01'; opt_sess_l[i++]='G18.01 - Comparing planetary systems';
opt_sess_v[i]='G18.02'; opt_sess_l[i++]='G18.02 - Bipolarity in planetary structure and dynamics: Earth and Mars';
opt_sess_v[i]='G19.01'; opt_sess_l[i++]='G19.01 - Travertines: archives of archeology, neotectonics, and paleoclimate';
opt_sess_v[i]='G19.02'; opt_sess_l[i++]='G19.02 - Climate and paleoenvironmental changes during the Quaternary: palynologic evidence';
opt_sess_v[i]='G19.03'; opt_sess_l[i++]='G19.03 - Rates in Quaternary processes';
opt_sess_v[i]='G19.04'; opt_sess_l[i++]='G19.04 - Continental sequences and climatic changes';
opt_sess_v[i]='G20.01'; opt_sess_l[i++]='G20.01 - Lithospheric differences between Precambrian cratons and younger orogens';
opt_sess_v[i]='G20.03'; opt_sess_l[i++]='G20.03 - Geologic evolution of North Africa';
opt_sess_v[i]='G20.04'; opt_sess_l[i++]='G20.04 - Neoproterozoic evolution of the Arabian-Nubian shield';
opt_sess_v[i]='G20.05'; opt_sess_l[i++]='G20.05 - Geology of the Afro-Arabian triple junction';
opt_sess_v[i]='G20.06'; opt_sess_l[i++]='G20.06 - Geology of Caspian and Aral seas regions';
opt_sess_v[i]='G20.07'; opt_sess_l[i++]='G20.07 - The Himalayas';
opt_sess_v[i]='G20.08'; opt_sess_l[i++]='G20.08 - Geology of the Mediterranean area';
opt_sess_v[i]='G20.09'; opt_sess_l[i++]='G20.09 - Geodynamic evolution and magmatism of the Alpine-Carpathians-Dinaride-Balkanian region';
opt_sess_v[i]='G20.10'; opt_sess_l[i++]='G20.10 - Evolution of Alps and Apennines';
opt_sess_v[i]='G20.11'; opt_sess_l[i++]='G20.11 - Caribbean plate tectonics';
opt_sess_v[i]='G20.12'; opt_sess_l[i++]='G20.12 - Neogene basins of Gulf of California and California borderland';
opt_sess_v[i]='G21.01'; opt_sess_l[i++]='G21.01 - Fluvial sedimentology 1: fluvial sediment dynamics';
opt_sess_v[i]='G21.02'; opt_sess_l[i++]='G21.02 - Fluvial sedimentology 2: alluvial facies and architectures';
opt_sess_v[i]='G21.03'; opt_sess_l[i++]='G21.03 - Palustrine carbonates and calcretes';
opt_sess_v[i]='G21.04'; opt_sess_l[i++]='G21.04 - Coastal and deltaic depositional systems';
opt_sess_v[i]='G21.05'; opt_sess_l[i++]='G21.05 - Deep-sea clastic sedimentation';
opt_sess_v[i]='G21.06'; opt_sess_l[i++]='G21.06 - Contourites';
opt_sess_v[i]='G21.08'; opt_sess_l[i++]='G21.08 - Cool-water carbonates';
opt_sess_v[i]='G21.09'; opt_sess_l[i++]='G21.09 - Evaporites through time and space';
opt_sess_v[i]='G21.10'; opt_sess_l[i++]='G21.10 - Dolomitization and dedolomitization';
opt_sess_v[i]='G21.11'; opt_sess_l[i++]='G21.11 - Sedimentary records of catastrophic events';
opt_sess_v[i]='G21.12'; opt_sess_l[i++]='G21.12 - Sedimentology of volcanoclastic sediments';
opt_sess_v[i]='G21.13'; opt_sess_l[i++]='G21.13 - Coupled process-response models in sediment transport and stratigraphy';
opt_sess_v[i]='G21.14'; opt_sess_l[i++]='G21.14 - Sedimentary provenance: petrographic and geochemical perspectives';
opt_sess_v[i]='G21.15'; opt_sess_l[i++]='G21.15 - Diagenesis of clastic and carbonate sediments';
opt_sess_v[i]='G21.16'; opt_sess_l[i++]='G21.16 - Systematics in sedimentary petrology';
opt_sess_v[i]='G22.01'; opt_sess_l[i++]='G22.01 - Stratigraphy and geology of volcanic areas';
opt_sess_v[i]='G22.02'; opt_sess_l[i++]='G22.02 - The global Ordovician Earth system';
opt_sess_v[i]='G22.03'; opt_sess_l[i++]='G22.03 - High-resolution stratigraphy for the subdivision of the Devonian stages';
opt_sess_v[i]='G22.04'; opt_sess_l[i++]='G22.04 - Global correlation of the Cisuralian (Lower Permian) stages';
opt_sess_v[i]='G22.05'; opt_sess_l[i++]='G22.05 - Global Permian continental biostratigraphy and biochronology';
opt_sess_v[i]='G22.06'; opt_sess_l[i++]='G22.06 - Triassic in the Tethys realm';
opt_sess_v[i]='G22.07'; opt_sess_l[i++]='G22.07 - Jurassic world (outside the park)';
opt_sess_v[i]='G22.08'; opt_sess_l[i++]='G22.08 - Cretaceous correlations and stage boundaries';
opt_sess_v[i]='G22.09'; opt_sess_l[i++]='G22.09 - Paleogene correlations and chronostratigraphic standards';
opt_sess_v[i]='G22.10'; opt_sess_l[i++]='G22.10 - Neogene correlations and chronostratigraphic standards';
opt_sess_v[i]='G22.11'; opt_sess_l[i++]='G22.11 - Pleistocene chronostratigraphic subdivision and stratigraphic boundaries in the mammalian record';
opt_sess_v[i]='G23.01'; opt_sess_l[i++]='G23.01 - Tectonics and sedimentation';
opt_sess_v[i]='G23.02'; opt_sess_l[i++]='G23.02 - Styles of continental compression: thin-skinned, thick-skinned, simple shear and pure shear';
opt_sess_v[i]='G23.03'; opt_sess_l[i++]='G23.03 - Tectonic inversion processes and structural inheritance in mountain belts';
opt_sess_v[i]='G23.04'; opt_sess_l[i++]='G23.04 - Controls of continental margin structure in the formation of foreland thrust and fold belts';
opt_sess_v[i]='G23.05'; opt_sess_l[i++]='G23.05 - High strain zones: mapping, modeling and experiments';
opt_sess_v[i]='G24.01'; opt_sess_l[i++]='G24.01 - Rift volcanism';
opt_sess_v[i]='G24.02'; opt_sess_l[i++]='G24.02 - Physical properties and dynamics of lava flows';
opt_sess_v[i]='G24.03'; opt_sess_l[i++]='G24.03 - Experimental volcanology';
opt_sess_v[i]='G24.04'; opt_sess_l[i++]='G24.04 - Quantitative and experimental approach to understand volcanic crises';


function updateSession(choice) {
	var idx = choice.selectedIndex;
	var val;
	var symp;
	var sympTypeChar;
	var sympType;
	var sympName;
	var label;
	var MAX_SIZE = 80;
	if (idx < 0) {
		return;
	}
	val = choice.options[idx].value;
	if (val == '_ALL_' || val == '_SEP_') {
			//|| val.match(/_CHOOSE_.*/)) {
		return;
	}
	if (val == '_CHOOSE_') {
		// build symposia type selection list
		emptySelect(choice);
		choice.options[choice.options.length] =
			new Option('All symposia', '_ALL_', false, false);
		choice.options[choice.options.length] =
			new Option('All special symposia', 'S', false, false);
		choice.options[choice.options.length] =
			new Option('All topical symposia', 'T', false, false);
		choice.options[choice.options.length] =
			new Option('All general symposia', 'G', false, false);
		choice.options[choice.options.length] =
			new Option('---', '_SEP_', false, false);
		choice.options[choice.options.length] =
			new Option('A special symposium...', '_CHOOSE_SPECIAL_', false, false);
		choice.options[choice.options.length] =
			new Option('A topical symposium...', '_CHOOSE_TOPICAL_', false, false);
		choice.options[choice.options.length] =
			new Option('A general symposium...', '_CHOOSE_GENERAL_', false, false);
		choice.selectedIndex = 0;
	} else if (val == '_CHOOSE_SPECIAL_') {
		emptySelect(choice);
		choice.options[choice.options.length] =
			new Option('All symposia', '_ALL_', false, false);
		choice.options[choice.options.length] =
			new Option('All special symposia', 'S', false, false);

		// build symposia selection list
		for (var i = 0; i < opt_symp_v.length; i++) {
			if (opt_symp_v[i].charAt(0) != 'S') {
				continue;
			}
			choice.options[choice.options.length] =
				new Option('Symposium ' + trunc(opt_symp_l[i]),
					'_CHOOSE_' + opt_symp_v[i] + '_',
					false, false);
		}
		choice.options[choice.options.length] =
			new Option('---', '_SEP_', false, false);
		choice.options[choice.options.length] =
			new Option('Another symposia type...', '_CHOOSE_', false, false);
		choice.selectedIndex = 1;
	} else if (val == '_CHOOSE_TOPICAL_') {
		emptySelect(choice);
		choice.options[choice.options.length] =
			new Option('All symposia', '_ALL_', false, false);
		choice.options[choice.options.length] =
			new Option('All topical symposia', 'T', false, false);

		// build symposia selection list
		for (var i = 0; i < opt_symp_v.length; i++) {
			if (opt_symp_v[i].charAt(0) != 'T') {
				continue;
			}
			choice.options[choice.options.length] =
				new Option('Symposium ' + trunc(opt_symp_l[i]),
					'_CHOOSE_' + opt_symp_v[i] + '_',
					false, false);
		}
		choice.options[choice.options.length] =
			new Option('---', '_SEP_', false, false);
		choice.options[choice.options.length] =
			new Option('Another symposia type...', '_CHOOSE_', false, false);
		choice.selectedIndex = 1;
	} else if (val == '_CHOOSE_GENERAL_') {
		emptySelect(choice);
		choice.options[choice.options.length] =
			new Option('All symposia', '_ALL_', false, false);
		choice.options[choice.options.length] =
			new Option('All general symposia', 'G', false, false);

		// build symposia selection list
		for (var i = 0; i < opt_symp_v.length; i++) {
			if (opt_symp_v[i].charAt(0) != 'G') {
				continue;
			}
			choice.options[choice.options.length] =
				new Option('Symposium ' + trunc(opt_symp_l[i]),
					'_CHOOSE_' + opt_symp_v[i] + '_',
					false, false);
		}
		choice.options[choice.options.length] =
			new Option('---', '_SEP_', false, false);
		choice.options[choice.options.length] =
			new Option('Another symposia type...', '_CHOOSE_', false, false);
		choice.selectedIndex = 1;
	} else if (val.match(/_CHOOSE_([STG]\d\d)_/)) {
		symp = val.substr(8,3);
		sympTypeChar = symp.charAt(0);

		if      (sympTypeChar=='S') {sympType = 'special';}
		else if (sympTypeChar=='T') {sympType = 'topical';}
		else if (sympTypeChar=='G') {sympType = 'general';}

		sympName = sympLookUp(symp);
		emptySelect(choice);

		choice.options[choice.options.length] =
			new Option('All symposia', '_ALL_', false, false);
		choice.options[choice.options.length] =
			new Option('All '+sympType+' symposia', sympTypeChar, false, false);
		choice.options[choice.options.length] =
			new Option('Symposium ' + trunc(sympName), symp, false, true);

		// build session selection list
		for (var i = 0; i < opt_sess_v.length; i++) {
			if (opt_sess_v[i].substring(0,3) != symp) {
				continue;
			}
			choice.options[choice.options.length] =
				new Option('Session ' + trunc(opt_sess_l[i]),
					opt_sess_v[i], false, false);
		}
		choice.options[choice.options.length] =
			new Option('---', '_SEP_', false, false);
		choice.options[choice.options.length] =
			new Option('Another '+sympType+' symposium...',
				'_CHOOSE_'+sympType.toUpperCase()+'_', false, false);
		choice.options[choice.options.length] =
			new Option('Another symposia type...', '_CHOOSE_', false, false);
		choice.selectedIndex = 2;
	}

	return;
}
function emptySelect(select) {
	//select.options.length = 0;
	for (var i=select.options.length-1;i>=0;i--) {
		select.options[i] = null;
	}
}
function sympLookUp(symp) {
	for (var i = 0; i < opt_symp_v.length; i++) {
		if (opt_symp_v[i] == symp) {
			return opt_symp_l[i];
		}
	}
	return;
}
function trunc(str) {
	var MAX_SIZE = 80;
	if (str.length > MAX_SIZE) {
		return str.substring(0,MAX_SIZE-5)+'[...]';
	} else {
		return str;
	}
}