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 == "L01") {
	document.ABSTRACT.THIS_SUB_CLASS.options[1] = new Option ("1A Electron Linac Projects", "1A", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[2] = new Option ("1B Energy Recovery Linacs", "1B", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[3] = new Option ("1C Synchrotron Light Sources", "1C", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[4] = new Option ("1D FELs", "1D", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[5] = new Option ("1E Colliders", "1E", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[6] = new Option ("1F Industrial and Medical Accelerators", "1F", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[7] = new Option ("1G Other Electron", "1G", false, false);
   }

   else if (class_code == "L02") {
	document.ABSTRACT.THIS_SUB_CLASS.options[1] = new Option ("2A Proton Linac Projects", "2A", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[2] = new Option ("2B Ion Linac Projects", "2B", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[3] = new Option ("2C RFQs", "2C", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[4] = new Option ("2D DTLs (Room Temperature)", "2D", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[5] = new Option ("2E Superconducting Linacs", "2E", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[6] = new Option ("2F Industrial and Medical Accelerators", "2F", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[7] = new Option ("2G Other Proton/Ion", "2G", false, false);
   }

   else if (class_code == "L03") {
	document.ABSTRACT.THIS_SUB_CLASS.options[1] = new Option ("3A Superconducting RF", "3A", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[2] = new Option ("3B Room Temperature RF", "3B", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[3] = new Option ("3C RF Power Sources and Power Couplers", "3C", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[4] = new Option ("3D Low Level RF", "3D", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[5] = new Option ("3E Cryomodules and Cryogenics", "3E", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[6] = new Option ("3F Insertion Devices", "3F", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[7] = new Option ("3G Beam Diagnostics", "3G", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[8] = new Option ("3H Other Technology", "3H", false, false);
   }

   else if (class_code == "L04") {
	document.ABSTRACT.THIS_SUB_CLASS.options[1] = new Option ("4A Induction Linacs", "4A", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[2] = new Option ("4B Muon Linacs", "4B", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[3] = new Option ("4C Plasma and Laser Wakefield Acceleration", "4C", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[4] = new Option ("4D Beam Dynamics, Computer Simulation, Beam Transport", "4D", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[5] = new Option ("4E Sources: Guns, Photo-Injectors, Charge Breeders", "4E", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[6] = new Option ("4F Ion Sources", "4F", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[7] = new Option ("4G Control Systems", "4G", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[8] = new Option ("4H Other Extreme", "4H", false, false);
   }

   else if (class_code == "L05") {
	document.ABSTRACT.THIS_SUB_CLASS.options[1] = new Option ("5A Opening", "5A", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[2] = new Option ("5B Closing", "5B", false, false);
   }

   else if (class_code == "") {
	document.ABSTRACT.THIS_SUB_CLASS.options[1] = new Option ("1A Electron Linac Projects", "1A", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[2] = new Option ("1B Energy Recovery Linacs", "1B", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[3] = new Option ("1C Synchrotron Light Sources", "1C", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[4] = new Option ("1D FELs", "1D", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[5] = new Option ("1E Colliders", "1E", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[6] = new Option ("1F Industrial and Medical Accelerators", "1F", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[7] = new Option ("1G Other Electron", "1G", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[8] = new Option ("2A Proton Linac Projects", "2A", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[9] = new Option ("2B Ion Linac Projects", "2B", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[10] = new Option ("2C RFQs", "2C", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[11] = new Option ("2D DTLs (Room Temperature)", "2D", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[12] = new Option ("2E Superconducting Linacs", "2E", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[13] = new Option ("2F Industrial and Medical Accelerators", "2F", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[14] = new Option ("2G Other Proton/Ion", "2G", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[15] = new Option ("3A Superconducting RF", "3A", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[16] = new Option ("3B Room Temperature RF", "3B", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[17] = new Option ("3C RF Power Sources and Power Couplers", "3C", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[18] = new Option ("3D Low Level RF", "3D", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[19] = new Option ("3E Cryomodules and Cryogenics", "3E", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[20] = new Option ("3F Insertion Devices", "3F", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[21] = new Option ("3G Beam Diagnostics", "3G", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[22] = new Option ("3H Other Technology", "3H", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[23] = new Option ("4A Induction Linacs", "4A", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[24] = new Option ("4B Muon Linacs", "4B", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[25] = new Option ("4C Plasma and Laser Wakefield Acceleration", "4C", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[26] = new Option ("4D Beam Dynamics, Computer Simulation, Beam Transport", "4D", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[27] = new Option ("4E Sources: Guns, Photo-Injectors, Charge Breeders", "4E", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[28] = new Option ("4F Ion Sources", "4F", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[29] = new Option ("4G Control Systems", "4G", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[30] = new Option ("4H Other Extreme", "4H", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[31] = new Option ("5A Opening", "5A", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[32] = new Option ("5B Closing", "5B", 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 > 1200) {
      alert ("Abstract exceeds the maximum length of 1200 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 > 200) {
      alert ("Agency exceeds the maximum length of 200 characters.  Your agency is " + document.ABSTRACT.this_agency.value.length + " characters.");

      return false;
   }

   return true;

}

function validateFileForm () {

var SRC	= new RegExp (document.FILE_UPLOAD.paper_id.value + "\\.(TEX|DOC|DOCX|ODT)$", "i");
var PS	= new RegExp (document.FILE_UPLOAD.paper_id.value + "\\.PS$", "i");
var PDF	= new RegExp (document.FILE_UPLOAD.paper_id.value + "\\.(PDF)$", "i");
var TRAN	= new RegExp (document.FILE_UPLOAD.paper_id.value + "_TALK\\.(PPT|PPTX|PPS|PPSX|PDF|ODP|KEY)$", "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 " + document.FILE_UPLOAD.paper_id.value + ".DOC, " + document.FILE_UPLOAD.paper_id.value + ".TEX, " + document.FILE_UPLOAD.paper_id.value + ".PDF, " + document.FILE_UPLOAD.paper_id.value + "_TALK.PPT or " + document.FILE_UPLOAD.paper_id.value + "_TALK.PDF";


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

	 else 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;
	 }  }

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

	 else if (document.FILE_UPLOAD.this_file_type.value == "TRAN") {
	    if (filename.match(TRAN) == null) {
	       alert ("Transparency filename must be named " + document.FILE_UPLOAD.paper_id.value + "_talk.PPT, " + document.FILE_UPLOAD.paper_id.value + "_talk.PPS or " + document.FILE_UPLOAD.paper_id.value + "_talk.PDF or " + document.FILE_UPLOAD.paper_id.value + "_TALK.ODT");
	       return false;
	 }  }

   else {

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

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

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

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

   }

   return true;

}

function template_guidelines() {
var resp;
	 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."));
	 }
	 if (document.FILE_UPLOAD.this_file_type.value == "PS") {
	   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."));
	 }
}