function valid(){
var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-]{2,4})+\.)+([a-zA-Z0-9]{2,4})+$/;
/*if (document.myform.FirstName.value == ""){
alert("Please enter First Name");
document.myform.FirstName.focus();
return false
		}*/
		
if(document.myform.Name.value == "")
	{
		alert("Name: Required.");
		document.myform.Name.focus(); 
		return false; 
	}		
	

	
if(!filter.test(document.getElementById('Email').value)) 
	{
		alert('Valid Email: Required.');
		document.myform.Email.focus(); 
		return false;
	}


	
if (document.myform.CNO.value == "")
	{
	alert("Contact No: Required.");
	document.myform.CNO.focus();
	return false;
	}	
		

}

function isNumberKey(evt)
	  {
		 var charCode = (evt.which) ? evt.which : event.keyCode
		 if (charCode > 31 && (charCode < 48 || charCode > 57))
			return false;

		 return true;
	  }