// JavaScript Document

<!-- Begin Field Required Validation
function checkrequired(which) {
	var pass=true;
if (document.images) {
for (i=0;i<which.length;i++) {
	var tempobj=which.elements[i]
if (tempobj.name.substring(0,8)=="required") {
if (((tempobj.type=="text"||tempobj.type=="textarea")&&
	tempobj.value=='')||(tempobj.type.toString().charAt(0)=="s"&&
	tempobj.selectedIndex==0)) {
	pass=false;
	break;
         }
      }
   }
}
if (!pass) {
shortFieldName=tempobj.name.substring(8,30).toUpperCase()
alert("Please make sure the "+shortFieldName+" field was properly completed.");
return false;
}
else
return emailCheck(document.newsletter_form.requiredemail.value);
return true;
}
//  End -->

<!-- Begin Email Address Validation
function emailCheck (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 +")*$");
var matchArray=emailStr.match(emailPat);
if (matchArray==null) {
alert("Email address seems incorrect (check @ and .'s)")
return false;
}
var user=matchArray[1]
var domain=matchArray[2]
for (i=0; i<user.length; i++) {
if (user.charCodeAt(i)>127) {
alert("Ths username contains invalid characters.");
return false;
   }
}
for (i=0; i<domain.length; i++) {
if (domain.charCodeAt(i)>127) {
alert("Ths domain name contains invalid characters.")
return false;
   }
}
if (user.match(userPat)==null) {
alert("The username doesn't seem to be valid.")
return false;
}
var IPArray=domain.match(ipDomainPat);
if (IPArray!=null) {
for (var i=1;i<=4;i++) {
if (IPArray[i]>255) {
alert("Destination IP address is invalid!")
return false;
   }
}
return true;
} 
var atomPat=new RegExp("^" + atom + "$");
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.")
return false;
   }
}
if (checkTLD && domArr[domArr.length-1].length!=2 && 
domArr[domArr.length-1].search(knownDomsPat)==-1) {
alert("The address must end in a well-known domain or two letter " + "country.")
return false;
}
if (len<2) {
alert("This address is missing a hostname!")
return false;
}
return true;
}
//  End -->