Pan and zoomcontrol moving bothsides

Hi,
I have some problem in javascript slider functions.In slider (pan and zoom)control when i click the mid bar , the slider move in clicking direction after that click the back side of slider the slider is moving backside also.

Plz suggest with sample code

Thanks
arun

It is difficult to understand.

Suggest you post a link to your current code

hi
when i click the slider bar front side the slider is moving front side, then click the back side the slider is moving back side please reply sample code
tks
arun