function rot13 (string) {
  var aCode = 'a'.charCodeAt();
  var zCode = 'z'.charCodeAt();
  var ACode = 'A'.charCodeAt();
  var ZCode = 'Z'.charCodeAt();
  var result = '';
  for (var c = 0; c < string.length; c++) {
    var charCode = string.charCodeAt(c);
    if (charCode >= aCode && charCode <= zCode)
      charCode = aCode + (charCode - aCode + 13) % 26;
    else if (charCode >= ACode && charCode <= ZCode)
      charCode = ACode + (charCode - ACode + 13) % 26;
    result += String.fromCharCode(charCode);
  }
  return result;
}

function write_rot13(string){ document.write(rot13(string)); }


function swapfooter(imgObj)
{
	var glowtxt = "_glow"; var indexchar = ".gif";
	if( imgObj.src.search("_glow.gif") > 0 ){ glowtxt = ""; indexchar = "_glow"; }
	imgObj.src = imgObj.src.substr( 0 , imgObj.src.indexOf(indexchar,0) ) + glowtxt + ".gif";
}

function didyouknow(){
	var url = "/popups/popup_didyouknow.php";
	window.open( url , "didyouknow_popup" , "left=15,top=15,width=400,height=500,status=no,toolbars=no,location=no,menubar=no,scrollbars=yes,directories=no,resizeable=no" );
}

function mailbutton(){
	var url = "/popups/popup_update-email.php";
	window.open( url , "updateemail_popup" , "left=15,top=15,width=400,height=420,status=no,toolbars=no,location=no,menubar=no,scrollbars=yes,directories=no,resizeable=no" );

}


function ematch(e,blankisbad){
		if(e=='' && blankisbad){ return false; }
		return e.match(/^[0-9a-z_\-\.]+@[0-9a-z_\-\.]+\.[0-9a-z_\-\.]{2,3}$/i);
}