how to use iscroll javascript in phone gap?

I have tried implementing the iscroll java script for my application as a remedial process for the CSS position:fixed that does not work in android 2 and 3 versions using cordova 2.1.0

I have copied the javascript of iscroll-lite from here

html code

<div id="wrapper" class="wrapper">
<div id="wrapper-container" class="wrapper-container">
    <div id="header" class="header">
    <div id="header_title" class="header_title"> </div>
    <div id="abc" class="abc"><img src="img/abc.png""/>                     </div>
</div>
<div id="images" class="images"><img  name="slide" src="img/abc.png" width=100%; />
</div>
<div id="description"  class="description">
<div id="title" class="title">
    <h1><strong></strong></h1>
</div>
<div id="desc" class="desc">
</div>
</div>  

<div id="footer" style="background-image:url(img/bar.png);" class="footer">
<div id="footer_text" class="footer_text">footer_text</div>
<div id="image" class="image noSelect"><img src="img/info.png" onclick="info()"/></div>
</div>
</div>

The content of desc tag is going to overflow

CSS

.wrapper
{
    position: absolute; width:auto; margin:0 auto; height:100%; overflow: hidden;
}
.wrapper_other
{
     width:auto; margin:0 auto; height:100%; overflow: hidden;
}
.wrapper_container
{
    width:100%;  margin:0 auto; font-family:Arial, Helvetica, sans-serif; 
}
.header
{
    float:left; height:100%;  min-height:100%; margin:0%; width:96%; padding:3% 2% 0;
}
.header_title
{
     float:left; padding:0%; margin:0%;  height:100%; min-height:100%; font-size:22px; color: #FFFF