function s(w){
if (checkData(w))
document.calform.submit();
}

function vemail(){
if(document.calform.email.value == "" ||  !validEmail(document.calform.email.value, "Email address")){
alert("Please enter Email.");		
document.calform.email.focus();
return false;
}
else
document.calform.submit();
}

function checkData(w)
{
		
	
	if(document.calform.email.value == "" ||  !validEmail(document.calform.email.value, "Email address"))
	{	//alert("Please enter Email.");		
		document.calform.email.focus();
		return false;
	}
	
	

	
	return true;
}

function validEmail(e, t)
{	
	if (e == "")
	{
		alert("Please enter your "+t);
		return false;
	}
	var emailStr = e;
	var emailPat=/^(.+)@(.+)$/;
	var specialChars="\\(\\)<>@,;:\*\\\\\"\\.\\[\\]";
	var validChars="\[^\\s" + specialChars + "\]";
	var quotedUser="([^\"]*\")";
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
	var atom=validChars + '+';
	var word="(" + atom + "|" + specialChars + ")";
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
	var matchArray=emailStr.match(emailPat);
	if (matchArray==null)
	{	alert("Your "+ t +" seems incorrect. Please check @ and .'s!");
		return false;
	}

	var user=matchArray[1];
	var domain=matchArray[2];
	if (user.match(userPat)==null)
	{	alert("Please do not use any symbols (ie. quotes or asterisks) other than @ in your "+ t +".");
		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;
			}
		}
	}

	var domainArray=domain.match(domainPat)
	if (domainArray==null)
	{	alert("Your "+ t +" domain name doesn't seem to be valid.");
		return false;
	}

	var atomPat=new RegExp(atom,"g");
	var domArr=domain.match(atomPat);
	var len=domArr.length;
	if (domArr[domArr.length-1].length<2 || domArr[domArr.length-1].length>3)
	{	alert("Your "+ t +" must end in a three-letter domain, or two letter country.");
		return false;
	}

	var Chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
	if (domArr[domArr.length-1].length == 2 || domArr[domArr.length-1].length == 3)
	{	for (var i = 0; i < domArr[domArr.length-1].length; i++)
		{	if (Chars.indexOf(domArr[domArr.length-1].charAt(i)) == -1)
			{	alert("The domain name can only contain letters.");
				return false;
			}
		}
	}

	if (len<2 || len>3)
	{	alert("Your "+ t +" is missing a hostname!");
		return false;
	}

	return true;
}