//Function to Check if all the required fields are filled.
function fnValidationCheck()
{
		
		/* validation for different fields */
		if (document.frm1.FirstName.value == "")
		{
			alert("First Name can't be blank !");
			document.frm1.FirstName.focus();
			return false;
		}
		else if (document.frm1.LastName.value == "") 
		{
			alert("Last Name can't be blank !");
			document.frm1.LastName.focus();
			return false;
		}
		else if (document.frm1.Phone.value == "") 
		{
			alert("Day phone can't be blank !");
			document.frm1.Phone.focus();
			return false;
		}
		else if(!emailCheck(document.frm1.Email.value))
		{
			document.frm1.Email.focus();
			return false;
		}
		else if (document.frm1.Address.value == "")
		{
			alert("Address can't be blank !");
			document.frm1.Address.focus();
			return false;
		}
		else if (document.frm1.State.value == "") 
		{
			alert("State can't be blank !");
			document.frm1.State.focus();
			return false;
		}
		else if (document.frm1.City.value == "") 
		{
			alert("City can't be blank !");
			document.frm1.City.focus();
			return false;
		}
		else if (document.frm1.Zip.value == "") 
		{
			alert("Zip can't be blank !");
			document.frm1.Zip.focus();
			return false;
		}
		else if (document.frm1.Country.value == "")
		{
			alert("Country can't be blank !");
			document.frm1.Country.focus();
			return false;
		}
		else if (document.frm1.Referred.value == "How did you hear about us?") 
		{
			alert("Please let us know where you heard about us.");
			document.frm1.Referred.focus();
			return false;
		}
		else
			return true;
}

//Function to check the email addresses are correct
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");
			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;
	}
	
	//Function added to submit the form incase all the validations are true
	function fnSubmit()
	{
		if (fnValidationCheck()== true)
		{
			document.frm1.submit();	
		}
		else
		{
		return false;
		}
	}