function openDL(url){
	window.open(url, "","left=100,top=100,width=650,height=500,resizable=0,scrollbars=1,menubar=1")
}
function SCSubmit(key) {
var f = document.forms[0];
var msg = "";
if(msg.length > 0) {
alert(msg);
return;
} else {
  document.forms[0].submit();
}
}
function IsCreditCard (s) {
  validChars = "1234567890";
  var st = "";
  sum = 0;
  mul = 1;
  
  if (s){
    s = s.value ;
    l = s.length;
    // strip all characters that are not valid numbers
    for (i = 0; i < l; i++) {
      var c = s.charAt(i);
      if (validChars.indexOf(c) != -1) {
      st += c;
    }
  }
  if (st.length == 0) {
	return false;
  } else {
  mul = 1;
  l = st.length;
  // validate credit card number using Luhn Mod-10 test
  for (i = 0; i < l; i++) {
    digit = st.substring(l-i-1,l-i);
    tproduct = parseInt(digit ,10)*mul;
    if (tproduct >= 10)
      sum += (tproduct % 10) + 1;
    else
      sum += tproduct;
    if (mul == 1)
      mul++;
    else
      mul--;
  }
  if ((sum % 10) == 0) { return true; }
  else { return false; }
 }
 } else {
  return true;
 }
}
function IsInteger(s) {
   var validChars = "1234567890";
   
   if (s) {
     s = s.value;
     if (s.length == 0) {
              return false;
	} else {
		// make sure all characters are valid
		for (i=0; i <= s.length; i++) {
			var c = s.charAt(i);
			if (validChars.indexOf(c) == -1) {
				return false;
			}
		}
	}
     return true;
    } else {
     return true;
    }
}
function IsChar(s) {
  if (s) {
    s = s.value;
    if (s == "") { return false; }
  }
  return true;
}
function IsEmail(s){
  if (s) {
       s = s.value;
	// should be of format MyAcct@MyDomain.com
	if ((s.indexOf('@') >0 ) && (s.indexOf('.', s.indexOf('@')) > 0)) {
		return true;
	} else {
		return false;
	}
  } else {
       return true;
  }
}
function SetValue() {
  var cvalue = GetCookie("btordernum");
  if (cvalue==null) {
    var exp = new Date();
    exp.setTime(exp.getTime() + (30*24*60*60*1000));
    SetCookie("btordernum",this.document.forms[0].OrderUniqueID.value,exp,"/");
  }
  else { 
    this.document.forms[0].OrderUniqueID.value=cvalue};
}
// these are the common cookie handling functions
function SetCookie (name,value,expires,path,domain,secure) {
   document.cookie = name + "=" + escape (value) +
     ((expires) ? "; expires=" + expires.toGMTString() : "") +
     ((path) ? "; path=" + path : "") +
     ((domain) ? "; domain=" + domain : "") +
     ((secure) ? "; secure" : ""); 
}
function GetCookie (name) {
   var arg = name + "=";
   var alen = arg.length;
   var clen = document.cookie.length;
   var i = 0;
   while (i < clen) {
     var j = i + alen;
     if (document.cookie.substring(i, j) == arg)
       return getCookieVal (j);
     i = document.cookie.indexOf(" ", i) + 1;
     if (i == 0) break;
    }
   return null;
}
function getCookieVal (offset) {
   var endstr = document.cookie.indexOf (";", offset);
   if (endstr == -1)
     endstr = document.cookie.length;
   return unescape(document.cookie.substring(offset, endstr));
}
function DeleteCookie (name,path,domain) {
   if (GetCookie(name)) {
     document.cookie = name + "=" +
       ((path) ? "; path=" + path : "") +
       ((domain) ? "; domain=" + domain : "") +
       "; expires=Thu, 01-Jan-70 00:00:01 GMT";
   }
}
function openFavs(url){
                if(url.indexOf('<!--Favorites-->') == -1){
	  window.open(url, "","left=200,top=200,width=300,height=400,resizable=0,scrollbars=1,menubar=0")
               } 
               else{
                  alert('Please log in to view your favorites.');
                }
}
function openItemRelatedLinks(url){
	window.open(url, "","left=100,top=100,width=650,height=500,resizable=0,scrollbars=1,menubar=1")
}
function openBulkQuoteRequest(cat,cas,desc){
     var url = "http://www.mpbio.com/ecom/webapps.nsf/BulkRequest?OpenForm&cat=" + cat + "&desc=" + desc+"&cas=" +cas;
	window.open(url, "","left=100,top=100,width=650,height=500,resizable=0,scrollbars=1,menubar=1")
}
function openCatalogRequest(){
     var url = "http://www.mpbio.com/ecom/webapps.nsf/CatalogRequest?OpenForm";
	window.open(url, "","left=100,top=100,width=650,height=500,resizable=0,scrollbars=1,menubar=1")
}
function openGeneralRequest(element){
 var nForm = element;
     var url = "http://www.mpbio.com/ecom/webapps.nsf/"+nForm+"?OpenForm";
	window.open(url, "","left=100,top=100,width=650,height=500,resizable=0,scrollbars=1,menubar=1")
}
function openCOA(url){
window.open(url+'~'+document.forms[2].lotno.value, "","left=100,top=100,width=650,height=500,resizable=0,scrollbars=1,menubar=1")
}
function OC() {
 var f = document.forms[0];
 if (f.Action.value == "Y") {
    return;
// return false; 

 } else {
   f.Action.value = "Y";
   return;
 }
}