// btamilio
// $Id: interest.js,v 1.2 2005/01/17 02:51:08 btamilio Exp $

function checkform() {
 var d = document.forms["interest"];
 
 // check name fields and syntax of email
 if ( (d.first_name.value.length < 1) ||  (d.last_name.value.length < 1) || (d.phone.value.length < 1) ) { 
  	alert("First name, Last name, and Telephone are required fields.");
	return false;	
 } 


// check email syntax only if they provide and address
if (d.first.value.length > 1) { 
	  if (checkEmail(d.email.value)) { 
		return true;
	  } else {
		alert ("The email address entered does not appear valid.\nPlease check it and try again.");
		return false;
	  }
} else {  	  
 	return true;
}
 
}

function checkEmail(addy) {
        var re;
        re = /^\w+([\.\-_']?\w+)*@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/; 
	    return  (re.test(addy) == true) ? true : false;
}