function isValid()
	{
			
				if(document.Feedback.txtName.value =="")
				{
					document.Feedback.txtName.focus();
					alert("Enter Name");
					return false;
				}
				if(document.Feedback.txtEmail.value=="")
				{
					document.Feedback.txtEmail.focus();
					alert("Enter Email");
					return false;
				}
				else
				{
					var strErrorMsg = "Enter  correct Email ID  " ;
					if (!(/^[\w\.]+@[\w\.]+[\W\.][\w\.]+$/.test(document.Feedback.txtEmail.value)))
					{
						document.Feedback.txtEmail.focus();
						alert(strErrorMsg);
					return false;
					}
	
				}
				

				if(document.Feedback.txtSubject.value=="")
				{
					document.Feedback.txtSubject.focus();
					alert("Enter Subject");
					return false;
				}

					if(document.Feedback.txtMessage.value=="")
				{
					document.Feedback.txtMessage.focus();
					alert("Enter Message");
					return false;
				}
				document.Feedback.SendMail.value="SendMail";
				document.Feedback.submit();
				
				
			}