function load_sub_class (class_code) {

   document.ABSTRACT.THIS_SUB_CLASS.options.length = 0; // remove all options
   document.ABSTRACT.THIS_SUB_CLASS.options[0] = new Option ("", "", true, true);

   if (class_code == "MC1") {
	document.ABSTRACT.THIS_SUB_CLASS.options[1] = new Option ("A01: Hadron Colliders", "A01", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[2] = new Option ("A02: Lepton Colliders", "A02", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[3] = new Option ("A03: Linear Colliders", "A03", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[4] = new Option ("A08: Linear Accelerators", "A08", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[5] = new Option ("A09: Muon Accelerators and Neutrino Factories", "A09", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[6] = new Option ("A10: Damping Rings", "A10", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[7] = new Option ("A12: FFAG", "A12", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[8] = new Option ("A16: Advanced Concepts", "A16", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[9] = new Option ("A17: High Intensity Accelerators", "A17", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[10] = new Option ("A18: Energy Recovery Linacs (ERLs)", "A18", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[11] = new Option ("A19: Electron - Hadron Colliders", "A19", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[12] = new Option ("A24: Accelerators and Storage Rings, Other", "A24", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[13] = new Option ("T12: Beam Injection/Extraction and Transport", "T12", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[14] = new Option ("T19: Collimation", "T19", false, false);
   }

   else if (class_code == "MC2") {
	document.ABSTRACT.THIS_SUB_CLASS.options[1] = new Option ("A04: Circular Accelerators", "A04", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[2] = new Option ("A05: Synchrotron Radiation Facilities", "A05", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[3] = new Option ("A06: Free Electron Lasers", "A06", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[4] = new Option ("A07: Electrostatic Accelerators", "A07", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[5] = new Option ("A08: Linear Accelerators", "A08", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[6] = new Option ("A18: Energy Recovery Linacs (ERLs)", "A18", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[7] = new Option ("A23: Other Linac-Based Photon Sources", "A23", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[8] = new Option ("A24: Accelerators and Storage Rings, Other", "A24", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[9] = new Option ("T02: Electron Sources", "T02", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[10] = new Option ("T12: Beam Injection/Extraction and Transport", "T12", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[11] = new Option ("T15: Undulators and Wigglers", "T15", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[12] = new Option ("T25: Lasers", "T25", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[13] = new Option ("T26: Photon Beam Lines and Components", "T26", false, false);
   }

   else if (class_code == "MC3") {
	document.ABSTRACT.THIS_SUB_CLASS.options[1] = new Option ("A09: Muon Accelerators and Neutrino Factories", "A09", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[2] = new Option ("A12: FFAG", "A12", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[3] = new Option ("A15: New Acceleration Techniques", "A15", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[4] = new Option ("A16: Advanced Concepts", "A16", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[5] = new Option ("A17: High Intensity Accelerators", "A17", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[6] = new Option ("A20: Radioactive Ions", "A20", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[7] = new Option ("A21: Secondary Beams", "A21", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[8] = new Option ("A22: Plasma Wakefield Acceleration", "A22", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[9] = new Option ("T01: Proton and Ion Sources", "T01", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[10] = new Option ("T02: Electron Sources", "T02", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[11] = new Option ("T28: Neutron Sources", "T28", false, false);
   }

   else if (class_code == "MC4") {
	document.ABSTRACT.THIS_SUB_CLASS.options[1] = new Option ("A04: Circular Accelerators", "A04", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[2] = new Option ("A07: Electrostatic Accelerators", "A07", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[3] = new Option ("A08: Linear Accelerators", "A08", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[4] = new Option ("A09: Muon Accelerators and Neutrino Factories", "A09", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[5] = new Option ("A11: Beam Cooling", "A11", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[6] = new Option ("A12: FFAG", "A12", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[7] = new Option ("A13: Cyclotrons", "A13", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[8] = new Option ("A14: Neutron Spallation Facilities", "A14", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[9] = new Option ("A16: Advanced Concepts", "A16", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[10] = new Option ("A17: High Intensity Accelerators", "A17", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[11] = new Option ("A20: Radioactive Ions", "A20", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[12] = new Option ("A21: Secondary Beams", "A21", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[13] = new Option ("A24: Accelerators and Storage Rings, Other", "A24", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[14] = new Option ("T01: Proton and Ion Sources", "T01", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[15] = new Option ("T12: Beam Injection/Extraction and Transport", "T12", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[16] = new Option ("T19: Collimation", "T19", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[17] = new Option ("T20: Targetry", "T20", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[18] = new Option ("T28: Neutron Sources", "T28", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[19] = new Option ("T32: Ion Beam Stripping", "T32", false, false);
   }

   else if (class_code == "MC5") {
	document.ABSTRACT.THIS_SUB_CLASS.options[1] = new Option ("D01: Beam Optics - Lattices, Correction Schemes, Transport", "D01", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[2] = new Option ("D02:Non-linear Single Particle Dynamics - Resonances,Tracking,Higher Order,Dynamic Aperture,Code Dev", "D02", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[3] = new Option ("D03: Calculations of EM fields - Theory and Code Developments", "D03", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[4] = new Option ("D04: Beam Coupling Impedance - Theory, Simulations, Measurements, Code Developments", "D04", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[5] = new Option ("D05: Coherent and Incoherent Instabilities - Theory, Simulations, Code Developments", "D05", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[6] = new Option ("D06: Coherent and Incoherent Instabilities - Measurements and Countermeasures", "D06", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[7] = new Option ("D07: High Intensity Circular Machines - Space Charge, Halos", "D07", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[8] = new Option ("D08: High Intensity in Linear Accelerators - Space Charge, Halos", "D08", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[9] = new Option ("D09: Emittance manipulation, Bunch Compression and Cooling", "D09", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[10] = new Option ("D10: Beam-Beam Effects - Theory, Simulations, Measurements, Code Developments", "D10", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[11] = new Option ("D11: Code Developments and Simulation Techniques", "D11", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[12] = new Option ("D12: Electron Cloud and Trapped Ion Effects", "D12", false, false);
   }

   else if (class_code == "MC6") {
	document.ABSTRACT.THIS_SUB_CLASS.options[1] = new Option ("T03: Beam Diagnostics and Instrumentation", "T03", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[2] = new Option ("T04: Accelerator/Storage Ring Control Systems", "T04", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[3] = new Option ("T05: Beam Feedback Systems", "T05", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[4] = new Option ("T17: Alignment and Survey", "T17", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[5] = new Option ("T18: Radiation Monitoring and Safety", "T18", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[6] = new Option ("T22: Reliability, Operability", "T22", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[7] = new Option ("T23: Machine Protection", "T23", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[8] = new Option ("T24: Timing and Synchronization", "T24", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[9] = new Option ("T25: Lasers", "T25", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[10] = new Option ("T26: Photon Beam Lines and Components", "T26", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[11] = new Option ("T27: Low Level RF", "T27", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[12] = new Option ("T33: Online Modeling and Software Tools", "T33", false, false);
   }

   else if (class_code == "MC7") {
	document.ABSTRACT.THIS_SUB_CLASS.options[1] = new Option ("T06: Room Temperature RF", "T06", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[2] = new Option ("T07: Superconducting RF", "T07", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[3] = new Option ("T08: RF Power Sources", "T08", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[4] = new Option ("T09: Room Temperature Magnets", "T09", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[5] = new Option ("T10: Superconducting Magnets", "T10", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[6] = new Option ("T11: Power Supplies", "T11", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[7] = new Option ("T13: Cryogenics", "T13", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[8] = new Option ("T14: Vacuum Technology", "T14", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[9] = new Option ("T16: Pulsed Power Technology", "T16", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[10] = new Option ("T19: Collimation", "T19", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[11] = new Option ("T20: Targetry", "T20", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[12] = new Option ("T21: Infrastructures", "T21", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[13] = new Option ("T24: Timing and Synchronization", "T24", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[14] = new Option ("T25: Lasers", "T25", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[15] = new Option ("T31: Subsystems, Technology and Components, Other", "T31", false, false);
   }

   else if (class_code == "MC8") {
	document.ABSTRACT.THIS_SUB_CLASS.options[1] = new Option ("U01: Medical Applications", "U01", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[2] = new Option ("U02: Materials Analysis and Modification", "U02", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[3] = new Option ("U03: Transmutation and Energy Production", "U03", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[4] = new Option ("U04: Security", "U04", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[5] = new Option ("U05: Other Applications", "U05", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[6] = new Option ("U06: Technology Transfer and Lab-Industry Relations", "U06", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[7] = new Option ("U07: Industrial Applications", "U07", false, false);
   }

   else if (class_code == "MCE") {
   }

   else if (class_code == "MCI") {
	document.ABSTRACT.THIS_SUB_CLASS.options[1] = new Option ("Industrial talk", "IND", false, false);
   }

   else if (class_code == "NMC") {
	document.ABSTRACT.THIS_SUB_CLASS.options[1] = new Option ("Non-MC", "NMC", false, false);
   }

   else if (class_code == "TDD") {
   }

   else if (class_code == "") {
	document.ABSTRACT.THIS_SUB_CLASS.options[1] = new Option ("A01: Hadron Colliders", "A01", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[2] = new Option ("A02: Lepton Colliders", "A02", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[3] = new Option ("A03: Linear Colliders", "A03", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[4] = new Option ("A04: Circular Accelerators", "A04", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[5] = new Option ("A05: Synchrotron Radiation Facilities", "A05", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[6] = new Option ("A06: Free Electron Lasers", "A06", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[7] = new Option ("A07: Electrostatic Accelerators", "A07", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[8] = new Option ("A08: Linear Accelerators", "A08", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[9] = new Option ("A09: Muon Accelerators and Neutrino Factories", "A09", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[10] = new Option ("A10: Damping Rings", "A10", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[11] = new Option ("A11: Beam Cooling", "A11", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[12] = new Option ("A12: FFAG", "A12", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[13] = new Option ("A13: Cyclotrons", "A13", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[14] = new Option ("A14: Neutron Spallation Facilities", "A14", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[15] = new Option ("A15: New Acceleration Techniques", "A15", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[16] = new Option ("A16: Advanced Concepts", "A16", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[17] = new Option ("A17: High Intensity Accelerators", "A17", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[18] = new Option ("A18: Energy Recovery Linacs (ERLs)", "A18", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[19] = new Option ("A19: Electron - Hadron Colliders", "A19", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[20] = new Option ("A20: Radioactive Ions", "A20", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[21] = new Option ("A21: Secondary Beams", "A21", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[22] = new Option ("A22: Plasma Wakefield Acceleration", "A22", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[23] = new Option ("A23: Other Linac-Based Photon Sources", "A23", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[24] = new Option ("A24: Accelerators and Storage Rings, Other", "A24", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[25] = new Option ("D01: Beam Optics - Lattices, Correction Schemes, Transport", "D01", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[26] = new Option ("D02:Non-linear Single Particle Dynamics - Resonances,Tracking,Higher Order,Dynamic Aperture,Code Dev", "D02", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[27] = new Option ("D03: Calculations of EM fields - Theory and Code Developments", "D03", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[28] = new Option ("D04: Beam Coupling Impedance - Theory, Simulations, Measurements, Code Developments", "D04", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[29] = new Option ("D05: Coherent and Incoherent Instabilities - Theory, Simulations, Code Developments", "D05", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[30] = new Option ("D06: Coherent and Incoherent Instabilities - Measurements and Countermeasures", "D06", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[31] = new Option ("D07: High Intensity Circular Machines - Space Charge, Halos", "D07", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[32] = new Option ("D08: High Intensity in Linear Accelerators - Space Charge, Halos", "D08", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[33] = new Option ("D09: Emittance manipulation, Bunch Compression and Cooling", "D09", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[34] = new Option ("D10: Beam-Beam Effects - Theory, Simulations, Measurements, Code Developments", "D10", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[35] = new Option ("D11: Code Developments and Simulation Techniques", "D11", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[36] = new Option ("D12: Electron Cloud and Trapped Ion Effects", "D12", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[37] = new Option ("Industrial talk", "IND", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[38] = new Option ("Non-MC", "NMC", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[39] = new Option ("T01: Proton and Ion Sources", "T01", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[40] = new Option ("T02: Electron Sources", "T02", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[41] = new Option ("T03: Beam Diagnostics and Instrumentation", "T03", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[42] = new Option ("T04: Accelerator/Storage Ring Control Systems", "T04", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[43] = new Option ("T05: Beam Feedback Systems", "T05", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[44] = new Option ("T06: Room Temperature RF", "T06", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[45] = new Option ("T07: Superconducting RF", "T07", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[46] = new Option ("T08: RF Power Sources", "T08", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[47] = new Option ("T09: Room Temperature Magnets", "T09", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[48] = new Option ("T10: Superconducting Magnets", "T10", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[49] = new Option ("T11: Power Supplies", "T11", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[50] = new Option ("T12: Beam Injection/Extraction and Transport", "T12", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[51] = new Option ("T13: Cryogenics", "T13", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[52] = new Option ("T14: Vacuum Technology", "T14", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[53] = new Option ("T15: Undulators and Wigglers", "T15", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[54] = new Option ("T16: Pulsed Power Technology", "T16", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[55] = new Option ("T17: Alignment and Survey", "T17", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[56] = new Option ("T18: Radiation Monitoring and Safety", "T18", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[57] = new Option ("T19: Collimation", "T19", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[58] = new Option ("T20: Targetry", "T20", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[59] = new Option ("T21: Infrastructures", "T21", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[60] = new Option ("T22: Reliability, Operability", "T22", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[61] = new Option ("T23: Machine Protection", "T23", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[62] = new Option ("T24: Timing and Synchronization", "T24", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[63] = new Option ("T25: Lasers", "T25", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[64] = new Option ("T26: Photon Beam Lines and Components", "T26", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[65] = new Option ("T27: Low Level RF", "T27", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[66] = new Option ("T28: Neutron Sources", "T28", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[67] = new Option ("T31: Subsystems, Technology and Components, Other", "T31", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[68] = new Option ("T32: Ion Beam Stripping", "T32", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[69] = new Option ("T33: Online Modeling and Software Tools", "T33", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[70] = new Option ("U01: Medical Applications", "U01", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[71] = new Option ("U02: Materials Analysis and Modification", "U02", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[72] = new Option ("U03: Transmutation and Energy Production", "U03", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[73] = new Option ("U04: Security", "U04", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[74] = new Option ("U05: Other Applications", "U05", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[75] = new Option ("U06: Technology Transfer and Lab-Industry Relations", "U06", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[76] = new Option ("U07: Industrial Applications", "U07", false, false);
   }

   return true;

}
function validatedSource () {

   window.opener.document.FILE_UPLOAD.source_verified.value="Y";
   window.close();
   return true;

}
function validateJACoWForm (sub_required) {

   if (document.ABSTRACT.this_title.value == "") {
      alert ("You must enter a Title");
      return false;
   }

   if (document.ABSTRACT.this_PRESENTATION.options[document.ABSTRACT.this_PRESENTATION.selectedIndex].value == "") {
      alert ("You must select a Presentation");
      return false;
  }

   if (document.ABSTRACT.this_CLASSIFICATION.options.length <= 1) {
      if (sub_required == "N") {
	 load_classifiation (document.ABSTRACT.this_presentation.options[document.ABSTRACT.this_presentation.selectedIndex].value);
      }
  }

   if (document.ABSTRACT.this_CLASSIFICATION.options[document.ABSTRACT.this_CLASSIFICATION.selectedIndex].value == "") {
      alert ("You must select a Main Classification");
      return false;
   }

   if (sub_required == "Y") {
      if (document.ABSTRACT.THIS_SUB_CLASS.options.length != 1) {
	 if (document.ABSTRACT.THIS_SUB_CLASS.options[document.ABSTRACT.THIS_SUB_CLASS.selectedIndex].value == "") {
	    alert ("You must select a Sub Classification");
	    return false;
   }  }  }

   if (document.ABSTRACT.this_description.value == "") {
      alert ("You must enter an Abstract");
      return false;
   }

   if (document.ABSTRACT.this_description.value.length > 1800) {
      alert ("Abstract exceeds the maximum length of 1800 characters.  Your abstract is " + document.ABSTRACT.this_description.value.length + " characters.");

      return false;
   }

   if (document.ABSTRACT.this_footnote.value.length > 200) {
      alert ("Footnote exceeds the maximum length of 200 characters.  Your footnote is " + document.ABSTRACT.this_footnote.value.length + " characters.");

      return false;
   }

   if (document.ABSTRACT.this_agency.value.length > 400) {
      alert ("Agency exceeds the maximum length of 400 characters.  Your agency is " + document.ABSTRACT.this_agency.value.length + " characters.");

      return false;
   }

   return true;

}

function validateFileForm () {

var PDFS	= new RegExp (document.FILE_UPLOAD.paper_id.value + "\\.(PDF|PS)$", "i");
var SRC	= new RegExp (document.FILE_UPLOAD.paper_id.value + "\\.(TEX|DOC|DOCX|DOCM|ODT)$", "i");
var TRAN	= new RegExp (document.FILE_UPLOAD.paper_id.value + "_TALK\\.(PPT|PPTX|PPS|PPSX|PDF|ODP)$", "i");
var POST	= new RegExp (document.FILE_UPLOAD.paper_id.value + "_poster\\.(PDF)$", "i");
var PDF	= new RegExp (document.FILE_UPLOAD.paper_id.value + "\\.(PDF)$", "i");
var filename = document.FILE_UPLOAD.file_name.value.toUpperCase();


   document.FILE_UPLOAD.validated.value = "YES";

   if (document.FILE_UPLOAD.this_file_type.value == "") {
      alert ("You must specify a File Type");
      return false;
   }

   if (document.FILE_UPLOAD.this_platform.value == "") {
      alert ("You must specify a Platform");
      return false;
   }

   if (document.FILE_UPLOAD.file_name.value == "") {
      alert ("You must specify a File to Upload");
      return false;
   }

   if (document.FILE_UPLOAD.this_file_type.value == "PS") {
      if (filename.match(PS) == null) {
	 alert ("Postscript filename must be named " + document.FILE_UPLOAD.paper_id.value + ".PS");
	 return false;
   }  }

   if (document.FILE_UPLOAD.this_file_type.value == "SRC") {
      if (document.FILE_UPLOAD.source_verified.value == "N") {
	 alert ("You must verify the Abstract and Author List prior to uploading a source file.");
	 return false;
   }  }

var err_msg = "Upload of \"Other Supporting File\" can not be named <paper_id>.DOC/TEX/PDF, <paper_id>_TALK.PPT/PDF";


	 if (document.FILE_UPLOAD.this_file_type.value == "PDFS") {
	    if (filename.match(PDFS) == null) {
	       alert ("Filename must be named <paper_id>.PDF or <paper_id>.PS");
	       return false;
	 }  }

	 else if (document.FILE_UPLOAD.this_file_type.value == "SRC") {
	    if (filename.match(SRC) == null) {
	       alert ("Source filename must be named <paper_id>.DOC /X/M, <paper_id>.TEX, or <paper_id>.ODT");
	       return false;
	 }  }

	 else if (document.FILE_UPLOAD.this_file_type.value == "TRAN") {
	    if (filename.match(TRAN) == null) {
	       alert ("Transparency filename must be named <paper_id>_talk.PPT/PPTX/PPS/PPTX/PDF/ODP");
	       return false;
	 }  }

	 else if (document.FILE_UPLOAD.this_file_type.value == "POST") {
	    if (filename.match(POST) == null) {
	       alert ("Poster filename must be named <paper_id>_poster.PDF");
	       return false;
	 }  }

	 else if (document.FILE_UPLOAD.this_file_type.value == "PDF") {
	    if (filename.match(PDF) == null) {
	       alert ("Filename must be named <paper_id>.PDF");
	       return false;
	 }  }

   else {

	    if (filename.match(PDFS) !== null) {
	       alert (err_msg);
	       return false;
	    }

	    else if (filename.match(SRC) !== null) {
	       alert (err_msg);
	       return false;
	    }

	    else if (filename.match(TRAN) !== null) {
	       alert (err_msg);
	       return false;
	    }

	    else if (filename.match(POST) !== null) {
	       alert (err_msg);
	       return false;
	    }

	    else if (filename.match(PDF) !== null) {
	       alert (err_msg);
	       return false;
	    }

   }

   return true;

}

function template_guidelines() {
var resp;
	 if (document.FILE_UPLOAD.this_file_type.value == "PDFS") {
	   return (confirm ("I confirm that my manuscript conforms to the guidelines of the JACoW template, and I have checked the paper against the \"Common Oversights\" document, and implemented any necessary changes accordingly."));
	 }
	 if (document.FILE_UPLOAD.this_file_type.value == "SRC") {
	   return (confirm ("I confirm that my manuscript conforms to the guidelines of the JACoW template, and I have checked the paper against the \"Common Oversights\" document, and implemented any necessary changes accordingly."));
	 }
}