function fullcheck()
{

  var str=document.contactform.email.value;
//alert(str);

		
     if (document.contactform.email.value.indexOf("@",1) == -1)
		{
			alert("Invalid E-Mail address");
			document.contactform.email.focus();
			document.contactform.email.select();
			return(false);
		}
		if (document.contactform.email.value.indexOf("@") == 0)
		{
			alert("Invalid E-Mail address");
			document.contactform.email.focus();
			document.contactform.email.select();
			return(false);
		}
		if (document.contactform.email.value.indexOf(".",5) == -1)
		{
			alert("Invalid E-Mail address");
			document.contactform.email.focus();
			document.contactform.email.select();
			return(false);
		}
		if (document.contactform.email.value.indexOf(".") == 0)
		{
			alert("Invalid E-Mail address");
			document.contactform.email.focus();
			document.contactform.email.select();
			return(false);
		}
		
		if ((document.contactform.email.value.lastIndexOf(".")) -(document.contactform.email.value.indexOf("@"))<4 )
		{
		
			alert("Invalid E-Mail address");
			document.contactform.email.focus();
			document.contactform.email.select();
			return(false);
		}

	  
}