function NumberBoxKeyPress(event, dp, dc, n) {
         var myString = new String(event.srcElement.value);
         var pntPos = myString.indexOf(String.fromCharCode(dc));
         var keyChar = window.event.keyCode;
       if ((keyChar < 48) || (keyChar > 57)) {
          if (keyChar == dc) {
              if ((pntPos != -1) || (dp < 1)) {
                  return false;
              }
          } else 
		if (((keyChar == 45) && (!n || myString.length != 0)) || (keyChar != 45)) 
             return false;
       }
       return true;
    }