function checkFeedbackNU()
{	
	if(CheckEmpty(document.getElementById('feedback_name'))){
		//document.getElementById("fname_err").style.display="block";
		alert("Please enter Zone name.");
		document.getElementById('feedback_name').focus();
		return false;
	}
	
	if(hasSpecialChar(document.getElementById('feedback_name').value)==false){
		//document.getElementById("fname_err").style.display="block";
		alert("Special characters are not allowed .");
		document.getElementById('feedback_name').focus();
		return false;
	}

	var noalpha = /^[a-zA-Z].*$/;

	if (!noalpha.test(document.getElementById('feedback_name').value)) {
		//document.getElementById("fname_err").style.display="block";
		alert("Incorrect Zone name !");
		document.getElementById('feedback_name').focus();
		return false;
	}

	var theurl=document.getElementById('url').value;
    var tomatch= /[A-Za-z0-9\.-]{3,}\.[A-Za-z]{3}/
    if (tomatch.test(theurl))
    {
        return true;
    }
    else
    {
        window.alert("URL invalid. Try again. For Eg: www.google.com");
		document.getElementById('url').focus();
        return false; 
    }	
}