function TextValidate(txtCtrl , val) {	
								var ctrName = val;		
								if (txtCtrl.value == "") {		
									alert("Please Enter " + ctrName + ".");		
									txtCtrl.focus();   	
									return false;		
								}			
							}
							function EmailValidate(txtCtrl ,  val) {
								var ctrName = val;
								if (txtCtrl.value.indexOf("@") < 0 ||txtCtrl.value.indexOf(".") < 0) {
									alert("Please Enter " + ctrName + ".");
									txtCtrl.focus();	   	
									txtCtrl.focus();
									return false;
								}		

							}
								function on_submit(){
								if(TextValidate(feedback.name , 'Name')==false) return false;
								if(EmailValidate(feedback.email , 'Email Address')==false) return false;
								if(TextValidate(feedback.query , 'Your Queries')==false) return false;
								return true;
							}