function validate() {
    var valid="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
    for (var i=0; i<names.firstname.value.length; i++) {
        if (valid.indexOf(names.firstname.value.charAt(i)) < 0) {
            //alert('Only inputs in Roman letters can be processed.Please try again.');            
	      alert('The translator can only process names written in the English alphabet. If your name uses punctuation marks such as apostrophes or hyphens, please enter it without them. Click OK and try again.');
			names.firstname.focus();
			return false;
			}
		}
		for (var i=0; i<names.lastname.value.length; i++) {
		if (valid.indexOf(names.lastname.value.charAt(i)) < 0) {			
				//alert('Only inputs in Roman letters can be processed.Please try again.');            
			alert('The translator can only process names written in the English alphabet. If your name uses punctuation marks such as apostrophes or hyphens, please enter it without them. Click OK and try again');
				names.lastname.focus();            
				return false;
			}
        }
     return true;    
    }