get the 100px area where the mouse is clicked
<p>I have graph on web page so i want to add the zoom in/zoom out functionality.
my graph is inside the jquery tab. so when user want to zoom particular area of page inside the tab that should be zoom. 
For ex: when user double click on page and inside the tab to zoom 100px by 100px area shoud be zoom. Double click zoom in and single click zoom out</p>

<p>Please guide me how to do this.</p>

<p>Thanks in advance!</p>
