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 == "AC") {
	document.ABSTRACT.THIS_SUB_CLASS.options[1] = new Option ("Absorbers", "AB", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[2] = new Option ("BM sources", "BS", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[3] = new Option ("Free Electron Lasers", "FL", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[4] = new Option ("Insertion Devices", "ID", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[5] = new Option ("Magnets", "MA", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[6] = new Option ("Storage rings", "SR", false, false);
   }

   else if (class_code == "CD") {
	document.ABSTRACT.THIS_SUB_CLASS.options[1] = new Option ("Big data and AI", "BA", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[2] = new Option ("Cryogenics", "CR", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[3] = new Option ("Infrastructures", "IF", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[4] = new Option ("New technologies", "NT", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[5] = new Option ("Others", "OT", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[6] = new Option ("Vacuum", "VA", false, false);
   }

   else if (class_code == "NU") {
	document.ABSTRACT.THIS_SUB_CLASS.options[1] = new Option ("Assemble and Installation", "AI", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[2] = new Option ("Fabrication", "FA", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[3] = new Option ("Large scale CAD model integration", "LC", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[4] = new Option ("Logistics and management", "LM", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[5] = new Option ("QA and tracking", "QT", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[6] = new Option ("Utilities", "UT", false, false);
   }

   else if (class_code == "PM") {
	document.ABSTRACT.THIS_SUB_CLASS.options[1] = new Option ("Automation", "AU", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[2] = new Option ("Mechatronics", "ME", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[3] = new Option ("Nano-positioning", "NP", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[4] = new Option ("Stability issues", "SI", false, false);
   }

   else if (class_code == "PR") {
	document.ABSTRACT.THIS_SUB_CLASS.options[1] = new Option ("Beamlines", "BL", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[2] = new Option ("End Stations", "ES", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[3] = new Option ("Front Ends", "FE", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[4] = new Option ("Optics", "OP", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[5] = new Option ("XBPMs", "XB", false, false);
   }

   else if (class_code == "SI") {
	document.ABSTRACT.THIS_SUB_CLASS.options[1] = new Option ("FEA methods", "FM", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[2] = new Option ("Structural statics and dynamics", "SD", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[3] = new Option ("Thermal", "TH", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[4] = new Option ("Vibration", "VI", false, false);
   }

   else if (class_code == "") {
	document.ABSTRACT.THIS_SUB_CLASS.options[1] = new Option ("Absorbers", "AB", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[2] = new Option ("Assemble and Installation", "AI", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[3] = new Option ("Automation", "AU", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[4] = new Option ("BM sources", "BS", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[5] = new Option ("Beamlines", "BL", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[6] = new Option ("Big data and AI", "BA", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[7] = new Option ("Cryogenics", "CR", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[8] = new Option ("End Stations", "ES", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[9] = new Option ("FEA methods", "FM", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[10] = new Option ("Fabrication", "FA", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[11] = new Option ("Free Electron Lasers", "FL", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[12] = new Option ("Front Ends", "FE", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[13] = new Option ("Infrastructures", "IF", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[14] = new Option ("Insertion Devices", "ID", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[15] = new Option ("Large scale CAD model integration", "LC", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[16] = new Option ("Logistics and management", "LM", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[17] = new Option ("Magnets", "MA", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[18] = new Option ("Mechatronics", "ME", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[19] = new Option ("Nano-positioning", "NP", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[20] = new Option ("New technologies", "NT", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[21] = new Option ("Optics", "OP", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[22] = new Option ("Others", "OT", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[23] = new Option ("QA and tracking", "QT", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[24] = new Option ("Stability issues", "SI", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[25] = new Option ("Storage rings", "SR", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[26] = new Option ("Structural statics and dynamics", "SD", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[27] = new Option ("Thermal", "TH", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[28] = new Option ("Utilities", "UT", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[29] = new Option ("Vacuum", "VA", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[30] = new Option ("Vibration", "VI", false, false);
	document.ABSTRACT.THIS_SUB_CLASS.options[31] = new Option ("XBPMs", "XB", 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)$", "i");
var SRC	= new RegExp (document.FILE_UPLOAD.paper_id.value + "\\.(TEX|DOC|DOCX|DOCM)$", "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;
   }  }

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, or <paper_id>.TEX");
	       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."));
	 }
}