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 == "01") {
	document.ABSTRACT.THIS_SUB_CLASS.options[1] = new Option ("Colliders", "1E", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[2] = new Option ("Electron linac projects", "1A", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[3] = new Option ("Energy recovery linacs", "1B", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[4] = new Option ("FELs", "1D", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[5] = new Option ("Industrial and medical accelerators", "1F", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[6] = new Option ("Other electron accelerators", "1G", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[7] = new Option ("Synchrotron light sources", "1C", false, false);
   }

   else if (class_code == "02") {
	document.ABSTRACT.THIS_SUB_CLASS.options[1] = new Option ("Industrial and medical accelerators", "2F", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[2] = new Option ("Ion linac projects", "2B", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[3] = new Option ("Other proton/ion", "2G", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[4] = new Option ("Proton linac projects", "2A", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[5] = new Option ("RFQs", "2C", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[6] = new Option ("Room temperature structures", "2D", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[7] = new Option ("Superconducting structures", "2E", false, false);
   }

   else if (class_code == "03") {
	document.ABSTRACT.THIS_SUB_CLASS.options[1] = new Option ("Beam diagnostics", "3G", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[2] = new Option ("Cryomodules and cryogenics", "3E", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[3] = new Option ("Industrial developments", "3H", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[4] = new Option ("Insertion devices", "3F", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[5] = new Option ("Low level RF", "3D", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[6] = new Option ("Other technology", "3I", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[7] = new Option ("RF power sources and power couplers", "3C", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[8] = new Option ("Room temperature RF", "3B", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[9] = new Option ("Superconducting RF", "3A", false, false);
   }

   else if (class_code == "04") {
	document.ABSTRACT.THIS_SUB_CLASS.options[1] = new Option ("Beam Dynamics, beam simulations, beam transport", "4A", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[2] = new Option ("Control systems", "4D", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[3] = new Option ("Dielectric and laser based accelerators", "4G", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[4] = new Option ("Electron and ion sources, guns, photo injectors, charge breeders", "4B", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[5] = new Option ("Industrial developments", "4E", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[6] = new Option ("Other beams", "4F", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[7] = new Option ("Plasma and wakefield acceleration", "4C", false, false);
   }

   else if (class_code == "") {
	document.ABSTRACT.THIS_SUB_CLASS.options[1] = new Option ("Beam Dynamics, beam simulations, beam transport", "4A", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[2] = new Option ("Beam diagnostics", "3G", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[3] = new Option ("Colliders", "1E", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[4] = new Option ("Control systems", "4D", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[5] = new Option ("Cryomodules and cryogenics", "3E", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[6] = new Option ("Dielectric and laser based accelerators", "4G", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[7] = new Option ("Electron and ion sources, guns, photo injectors, charge breeders", "4B", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[8] = new Option ("Electron linac projects", "1A", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[9] = new Option ("Energy recovery linacs", "1B", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[10] = new Option ("FELs", "1D", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[11] = new Option ("Industrial and medical accelerators", "1F", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[12] = new Option ("Industrial and medical accelerators", "2F", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[13] = new Option ("Industrial developments", "4E", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[14] = new Option ("Industrial developments", "3H", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[15] = new Option ("Insertion devices", "3F", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[16] = new Option ("Ion linac projects", "2B", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[17] = new Option ("Low level RF", "3D", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[18] = new Option ("Other beams", "4F", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[19] = new Option ("Other electron accelerators", "1G", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[20] = new Option ("Other proton/ion", "2G", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[21] = new Option ("Other technology", "3I", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[22] = new Option ("Plasma and wakefield acceleration", "4C", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[23] = new Option ("Proton linac projects", "2A", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[24] = new Option ("RF power sources and power couplers", "3C", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[25] = new Option ("RFQs", "2C", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[26] = new Option ("Room temperature RF", "3B", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[27] = new Option ("Room temperature structures", "2D", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[28] = new Option ("Superconducting RF", "3A", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[29] = new Option ("Superconducting structures", "2E", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[30] = new Option ("Synchrotron light sources", "1C", 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 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 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 (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;
	    }

   }

   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."));
	 }
}