pull to refresh is not working page2 & page 3 divs?

pull to refresh is not working page2 & page 3 divs?

<div id="wrapper">
<div id="scroller">
<div id="pullDown">
<span class="pullDownIcon"></span><span class="pullDownLabel">Pull down to refresh...</span>
</div>
</div>
</div>


As iam using this above code its working fine in page1 div but while coming page2 & page 3 its not working .

My html page structure is like this

<html>
<body>
<div data-role="page" id="page1></div>
<div data-role="page" id="page2> </div>
<div data-role="page" id="page2> </div>
</body>
</html>
iam using iscroll .js files to achive this