load an obj file from browser to unity3d

Hi,Now i am works on unity 3d. i am new in unity3d...Recently i checked with the unity asset bundle example.But it couldn't load properly.Instead of this i want to load an obj file from browser to unity3d . is it possible ? If it possible please give a sample program.

   <script type="text/javascript">
     //initializing the WebPlayer
           var u = new UnityObject2();
       u.initPlugin(jQuery("#unityPlayer")[0], "check.unity3d");

     function SaySomethingToUnity()
     {
         alert("Communicate with Unity");
         u.getUnity().SendMessage("Cube","test","");
     }
     function javascriptFunction( param ){
         var conf=confirm("This is invoked from "+param);
         if(conf == true)
         {
             invokeTest1();
         }
    }
     function invokeTest1()
     {
         u.getUnity().SendMessage("Cube","test1","");
     }

Thank you.