// JavaScript Document
function isValidEmail(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 +")*$");
	var matchArray=emailStr.match(emailPat);
	if (matchArray==null) {
		return "Email address seems incorrect (check @ and .'s)";
		//alert("Email address seems incorrect (check @ and .'s)");
		//return false;
	}
	var user=matchArray[1];
	var domain=matchArray[2];
	// Start by checking that only basic ASCII characters are in the strings (0-127).
	for (i=0; i<user.length; i++) {
		if (user.charCodeAt(i)>127) {
			return "Ths username contains invalid characters.";
			//return false;
		}
	}
	for (i=0; i<domain.length; i++) {
		if (domain.charCodeAt(i)>127) {
			return "Ths domain name contains invalid characters.";
			//return false;
		}
	}
	if (user.match(userPat)==null) {
		return "The username doesn't seem to be valid.";
		//return false;
	}
	var IPArray=domain.match(ipDomainPat);
	if (IPArray!=null) {
		for (var i=1;i<=4;i++) {
			if (IPArray[i]>255) {
				return "Destination IP address is invalid!";
				//return false;
	   		}
		}
		return 0;
	}
	var atomPat=new RegExp("^" + atom + "$");
	var domArr=domain.split(".");
	var len=domArr.length;
	for (i=0;i<len;i++) {
		if (domArr[i].search(atomPat)==-1) {
			return "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) {
		return "The address must end in a well-known domain or two letter " + "country.";
		//return false;
	}

// Make sure there's a host name preceding the domain.

	if (len<2) {
		return "This address is missing a hostname!";
		//return false;
	}	
	return 0;
}

// Function Contact Us By: GauranG
function ConactUS()
{
	var dom = document.contact;
	if(dom.Cname.value == "")
	{
		alert("Please Enter Name.");
		dom.Cname.focus();
		return false;
	}
	if(dom.phone.value == "")
	{
		alert("Please Enter Phone.");
		dom.phone.focus();
		return false;
	}
	if(dom.email.value == "")
	{
		alert("Please Enter E-mail.");
		dom.email.focus();
		return false;
	}
	if(dom.email.value != "")
	{
		var msg = isValidEmail(dom.email.value);
		if(msg)
		{			
			alert(msg);
			dom.email.focus();
			return false;
		}
	}
	if(dom.subject.value == "")
	{
		alert("Please Enter Subject.");
		dom.subject.focus();
		return false;
	}
	if(dom.message.value == "")
	{
		alert("Please Enter Message.");
		dom.message.focus();
		return false;
	}
}

function ExpressInfo()
{
	if(document.frmexp.fname.value == "")
	{
		alert("Please Enter First Name.");
		document.frmexp.fname.focus();
		return false;
	}
	if(document.frmexp.lname.value == "")
	{
		alert("Please Enter Last Name.");
		document.frmexp.lname.focus();
		return false;
	}
	if(document.frmexp.email.value == "")
	{
		alert("Please Enter E-mail.");
		document.frmexp.email.focus();
		return false;
	}
	if(document.frmexp.email.value != "")
	{
		var msg = isValidEmail(document.frmexp.email.value);
		if(msg)
		{			
			alert(msg);
			document.frmexp.email.focus();
			return false;
		}
	}
//	document.frmexp.submit();
}
function SendFriend()
{
	var dim = document.frnd;
	if(dim.yname.value == "")
	{
		alert("Please Enter Your Name.");
		dim.yname.focus();
		return false;
	}
	if(dim.yemail.value == "")
	{
		alert("Please Enter Your E-mail.");
		dim.yemail.focus();
		return false;
	}
	if(dim.yemail.value != "")
	{
		var msg = isValidEmail(dim.yemail.value);
		if(msg)
		{			
			alert(msg);
			dim.yemail.focus();
			return false;
		}
	}
	if(dim.fname.value == "")
	{
		alert("Please Enter Friend Name.");
		dim.fname.focus();
		return false;
	}
	if(dim.femail.value == "")
	{
		alert("Please Enter Friend E-mail.");
		dim.femail.focus();
		return false;
	}
	if(dim.femail.value != "")
	{
		var msg = isValidEmail(dim.femail.value);
		if(msg)
		{			
			alert(msg);
			dim.femail.focus();
			return false;
		}
	}
}