// JavaScript Document

//-->
   //Toggle Alt Email Mandatory notation
   //switch layers for different browsers
	var ie4 = (document.all) ? true : false;
	var ns4 = (document.layers) ? true : false;
	var ns6 = (document.getElementById && !document.all) ? true : false;
	function hidelayer(lay) {
	if (ie4) {document.all[lay].style.visibility = "hidden";}
	if (ns4) {document.layers[lay].visibility = "hide";}
	if (ns6) {document.getElementById([lay]).style.display = "none";}
	}
	function showlayer(lay) {
	if (ie4) {document.all[lay].style.visibility = "visible";}
	if (ns4) {document.layers[lay].visibility = "show";}
	if (ns6) {document.getElementById([lay]).style.display = "block";}
	}
   // -->//-->
<!--

function acceptNum(evt){	
//--var nav4 = window.Event ? true : false;
// NOTE: Backspace = 8, Enter = 13, '0' = 48, '9' = 57	
//--var key = nav4 ? evt.which : evt.keyCode;	
//--return (key <= 13 || (key >= 48 && key <= 57) || key == 44);
var key;

 if(window.event) // IE
 {
  key = evt.keyCode;
 }
  else if(evt.which) // Netscape/Firefox/Opera
 {
  key = evt.which;
 }

 if (key < 48 || key > 57)
    {
      return false;
    }

 return true;
}
//-->