how to update my sencha app from Extjs2 to Extjs3?
i'm trying to update my sencha app from Extjs2.0 to ExtJS 3, but i'm finding a bit difficulty in it.

actually i developed that application in ExtJS2 but now i have to use the grid panel which is present in Extjs3.

so when i include the extjs3 in the current html file my whole app crashes please help.... 



    <!DOCTYPE html>
    <html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8">	
        <title>Picker</title>
        

       <link rel="stylesheet" href="resources\css\sencha-touch.css" type="text/css">
       <link rel="stylesheet" href="resources\css\ext-all-css.css" type="text/css">
       

        <script type="text/javascript" src="ext-touch.js"></script>
        <script type="text/javascript" src="ext-all.js"></script>    	

    	 <script type="text/javascript" src="src\Stocking.js"></script>
    	  <script type="text/javascript" src="src\Datafile.js"></script>
    	 <script type="text/javascript" src="src\index.js"></script>
        <style>
            body {
                background-color: #286999;
                margin: 0;
                padding: 0;
            }
        </style>
    </head>
    <body></body>
    </html>


how to update my sencha app from Extjs2 to Extjs3?
===

i'm trying to update my sencha app from Extjs2.0 to ExtJS 3, but i'm finding a bit difficulty in it.

actually i developed that application in ExtJS2 but now i have to use the grid panel which is present in Extjs3.

so when i include the extjs3 in the current html file my whole app crashes please help.... 



    <!DOCTYPE html>
    <html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8">	
        <title>Picker</title>
        

       <link rel="stylesheet" href="resources\css\sencha-touch.css" type="text/css">
       <link rel="stylesheet" href="resources\css\ext-all-css.css" type="text/css">
       

        <script type="text/javascript" src="ext-touch.js"></script>
        <script type="text/javascript" src="ext-all.js"></script>    	

    	 <script type="text/javascript" src="src\Stocking.js"></script>
    	  <script type="text/javascript" src="src\Datafile.js"></script>
    	 <script type="text/javascript" src="src\index.js"></script>
        <style>
            body {
                background-color: #286999;
                margin: 0;
                padding: 0;
            }
        </style>
    </head>
    <body></body>
    </html>

