function imgtra(email) {

	var alpha='ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLM';
	var x = 0; 

	for (x = 0; 
	x <= email.length; 
	x++){ var part = email.substring(x, x+1); 

	if (part >= 'A' && part <= 'Z'){ var
	   letters = "upper" 
	} 
	   if (part >= 'a' && part <= 'z') { 
	      var letters = "lower" 
	   } 
	   var part = part.toUpperCase();

	   if (part == '[') { part = '<'; }
	   if (part == ']') { part = '>'; }

	   if (part >= 'A' && part <= 'Z') {
    	   	part = alpha.charAt(alpha.indexOf(part) + 13);
	   	if (letters == "lower") {
			 part = part.toLowerCase() 
	   	   } 
	   } 
	document.write(part); 

	} 
	

}