DHTMLXTREEGRID iS unable to load

Hi im using DHTMLXTreeGrid for the first time with check boxes, but the gris is not loading.mygrid.init() function it is not working.
Grid is displayed as blank. code is as follows.

alert("after") is not poping up. and the out put is attached also the fiel is attached please provide solution where I'm going wrong.since i dint get some.gif i replaced with plus.gif please let me know where I'm going wrong. test_list_1.xml --------------------- <?xml version="1.0" ?> first column data second column data sub row first column data second column data first column data second column data

Unfortunately the issue cannot be reconstucted locally.
Your code works well for us.
If issue still occurs for you - please, provide with a complete demo, where the issue can be reproduced locally.