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 == "APPDIAG") {
   }

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

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

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

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

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

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

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

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

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

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

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

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

   else if (class_code == "") {
   }

   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 > 1210) {
      alert ("Abstract exceeds the maximum length of 1210 characters.  Your abstract is " + document.ABSTRACT.this_description.value.length + " characters.");

      return false;
   }

   if (document.ABSTRACT.this_footnote.value.length > 500) {
      alert ("Footnote exceeds the maximum length of 500 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|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)$", "i");
var TRAN	= new RegExp (document.FILE_UPLOAD.paper_id.value + "_TALK\\.(PPT|PDF|PPS|ODP)$", "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 " + 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 ("Transparenecy 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;

}