// JavaScript Document
function validateForm() {
	var err = '';
	
	if(document.getElementById('nev').value.length == 0) {
		err = err + "* "  +  $('#labelNev').val() + "\n";
	}

	if(document.getElementById('message').value.length == 0) {
		err = err + "* " +  $('#labelMessage').val() + "\n";
	}

	if(IsNumeric(document.getElementById('txtNumber').value) == false || document.getElementById('txtNumber').value.length < 5) {
		err = err + "* " +  $('#labelTxtNumber').val() + "\n";
	}

	if(err != '') {
		alert( $('#chk').val() + ':\t\t\t\t\t\n' + err);
		return false;
	} else {
		document.commentForm.submit()
	}

}

function IsNumeric(sText) {
   var ValidChars = "0123456789";
   var IsNumber=true;
   var Char;

 
   for (i = 0; i < sText.length && IsNumber == true; i++) 
      { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsNumber = false;
         }
      }
   return IsNumber;
}