function isEmailAddr(email)
{
	var result = false;
	var theStr = new String(email);
	var index = theStr.indexOf("@");
	if (index > 0)
	{
		var pindex = theStr.indexOf(".",index);
		if ((pindex > index+1) && (theStr.length > pindex+1))
		result = true;
	}
	return result;
	
}
function signupcheck()
{
	if(document.signup.emailt.value=="" )
	{
		alert("Please Enter Email");
		document.signup.emailt.focus(); 
		return false;
	}
	if(!isEmailAddr(document.signup.emailt.value))
		{
			alert("Please provide correct email address in the form: yourname@yourdomain.com");
			document.signup.emailt.focus();
			return false;
		
		}
}