// Vision 2010 Contact Us Error Checking Script

<!-- Start Validation Rules -->
function checkEmail (emailStr) {
    var checkTLD = 1;
    var knownDomsPat = /^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
    var emailPat = /^(.+)@(.+)$/;
    var specialChars = "\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
    var validChars = "\[^\\s" + specialChars + "\]";
    var quotedUser = "(\"[^\"]*\")";
    var ipDomainPat = /^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
    var atom = validChars + '+';
    var word = "(" + atom + "|" + quotedUser + ")";
    var userPat = new RegExp("^" + word + "(\\." + word + ")*$");
    var domainPat = new RegExp("^" + atom + "(\\." + atom +")*$");
    var matchArray = emailStr.match(emailPat);
	var i = 0;
	var msg = "You have entered an invalid email address. Please enter your email address.";
	
    if(matchArray==null) {
		alert(msg);
        return false;
    }
    var user = matchArray[1];
    var domain = matchArray[2];
    for (i=0; i<user.length; i++) {
        if (user.charCodeAt(i)>127) {
            //alert("Ths username contains invalid characters.");
			alert(msg);
            return false;
        }
    }
    for (i=0; i<domain.length; i++) {
        if (domain.charCodeAt(i)>127) {
            //alert("Ths domain name contains invalid characters.");
			alert(msg);
            return false;
        }
    }
    if (user.match(userPat)==null) {
		alert(msg);
        return false;
    }
    var IPArray=domain.match(ipDomainPat);
    if (IPArray!=null) {
        for (i=1;i<=4;i++) {
            if (IPArray[i]>255) {
                //alert("Destination IP address is invalid!");
				alert(msg);
                return false;
            }
        }
        return true;
    }
    var atomPat = new RegExp("^" + atom + "$");
    var domArr = domain.split(".");
    var len = domArr.length;
    for (i=0;i<len;i++) {
        if (domArr[i].search(atomPat)==-1) {
            // alert("The domain name does not seem to be valid.");
			alert(msg);
            return false;
        }
    }
     if (checkTLD && domArr[domArr.length-1].length!=2 && (domArr[domArr.length-1].toLowerCase()).search(knownDomsPat)==-1) {
        // alert("The address must end in a well-known domain or two letter " + "country.");
		alert(msg);
        return false;
    }
    if (len<2) {
        // alert("This address is missing a hostname!");
		alert(msg);
        return false;
    }
	return true;
}
 function check_form(obj) {
  
   if (obj.q1.value == '') {
   alert("Please fill in your First Name");
   return false;
   }
   if (obj.q2.value == '') {
    alert("Please fill in your Last Name");
    return false;
   }
   if (!checkEmail(obj.q14.value)) {
    return false;
   }
   if (obj.q15.value == '') {
    alert("Please fill in your Company Name");
    return false;
   }
  }
<!-- END VALIDATION CODE -->