Flickering problem on input text

Flickering problem on input text

Hi,

I have some strange flickering problem with input text control.

i have a simple page with button on it and while pressing on that button i am opening popup that has listview and on last row of that listview i have input text field.
While activating this page on iPad and trying insert text to this input, the page is flickering and jumping for each key presseed on virtual keyboard.

i am using jquery mobile version 1.3.1

any ideas?

 

this is the full page source:

<head>
    <title>Basic Mobile Page</title>
    <meta name="viewport" content="width=device-width, initial-scale=1">

    <link rel="stylesheet" href="http://code.jquery.com/mobile/1.3.1/jquery.mobile-1.3.1.min.css" />
    <script type="text/javascript" src="http://code.jquery.com/jquery-1.8.2.min.js"></script>
    <script type="text/javascript" src="http://code.jquery.com/mobile/1.3.1/jquery.mobile-1.3.1.min.js"></script>
    
</head>
<body>
    <div data-role="page">
        <div data-role="header">
            <h1>Products</h1>
            <a href="#pageConfig" id="btnSubscribe" data-position-to="window" data-rel="popup" data-transition="pop" data-role="button" style="font-family:Arial;background:#2B3A56; color:White; margin-left:150px; margin-right:150px;"  >Subscribe</a>
        </div>
        
    <div data-role="popup" id="pageConfig" data-overlay-theme="a">
    <div data-role="content">
     <ul data-role="listview" data-inset="true">
        <li data-role="fieldcontain">
            <label for="textarea2">Textarea:</label>
        <textarea cols="40" rows="8" name="textarea2" id="textarea2"></textarea>
        </li>
        <li data-role="fieldcontain">
            <label for="flip2">Flip switch:</label>
            <select name="flip2" id="flip2" data-role="slider">
                <option value="off">Off</option>
                <option value="on">On</option>
            </select>
        </li>
        <li data-role="fieldcontain">
            <label for="slider2">Slider:</label>
            <input type="range" name="slider2" id="slider2" value="0" min="0" max="100" data-highlight="true">
        </li>
        <li data-role="fieldcontain">
            <label for="select-choice-1" class="select">Choose shipping method:</label>
            <select name="select-choice-1" id="select-choice-1">
                <option value="standard">Standard: 7 day</option>
                <option value="rush">Rush: 3 days</option>
                <option value="express">Express: next day</option>
                <option value="overnight">Overnight</option>
            </select>
        </li>
        <li class="ui-body ui-body-b">
            <fieldset class="ui-grid-a">
                    <div class="ui-block-a"><button type="submit" data-theme="d">Cancel</button></div>
                    <div class="ui-block-b"><button type="submit" data-theme="a">Submit</button></div>
            </fieldset>
        </li>
        <li data-role="fieldcontain">
            <label for="name2">Text Input:</label>
            <input type="text" name="name2" id="name2" value="" data-clear-btn="true">
        </li>
        
    </ul>
  </div>
  </div>
        <div data-role="content">
            <p>Our products</p>
        </div>

        <div data-role="footer">
            <h3>footer</h3>
        </div>
    </div>

</body>