// JavaScript Document

function ShowEmail(user, domain, anchor) {
	var OutText = '';
	OutText += '<a href="mailto:' + user + '@' + domain + '">';
	if (anchor != '') OutText += anchor;
	else OutText += user + '@' + domain;
	OutText  += '</a>';
	document.write(OutText);
}

/*------------------FORM VALIDATION-------------------*/

function validForm()
{
	if (document.getElementById('name').value == '') 
	{
		alert("Please enter your name.");
		document.getElementById('name').focus();
		return false;
	}
	
	if (document.getElementById('company').value == '') 
	{
		alert("Please enter your company name.");
		document.getElementById('company').focus();
		return false;
	}
			
	if (document.getElementById('address').value == '') 
	{
		alert("Please enter your address.");
		document.getElementById('address').focus();
		return false;
	}

	if (document.getElementById('postcode').value == '') 
	{
		alert("Please enter your post code.");
		document.getElementById('postcode').focus();
		return false;
	}
			
	if (document.getElementById('telephone').value == '') 
	{
		alert("Please enter your telephone.");
		document.getElementById('telephone').focus();
		return false;
	}
			
	var string1=document.getElementById('email').value;
	if (string1.indexOf("@")==-1)
	{
		alert("Please input a valid email address.");
		request.email.value = "";
		document.getElementById('email').focus();
		return false;
	}
	else {
		if (!emailCheck(document.getElementById('email').value))
			return false;
	}
}

function emailCheck(emailStr) {

	var checkTLD=1;
	
	var knownDomsPat=/^(com|co.uk|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)");
		document.getElementById('email').value = "";
		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.");
			document.getElementById('email').value = "";
			return false;
		}
	}
	
	for (i=0; i<domain.length; i++) {
		if (domain.charCodeAt(i)>127) {
			alert("Ths domain name contains invalid characters.");
			document.getElementById('email').value = "";
			return false;
		}
	}
	
	if (user.match(userPat)==null) {
		alert("The username doesn't seem to be valid.");
		document.getElementById('email').value = "";
		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!");
				document.getElementById('email').value = "";
				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.");
			document.getElementById('email').value = "";
			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.");
		document.getElementById('email').value = "";
		return false;
	}
	
	return true;
}