treeview ie8 problem - "Stop running this script?"

treeview ie8 problem - "Stop running this script?"

I have a massive treeview. It has 250 node and all nodes has child nodes. I'm using also jquery.treeview.async.js.

My code like below
  2.  $("#CustTree").treeview({
  3.             url: "TreeView/CustTreeView",
  4.             control: "#treecontrol",
  5.              unique: false,
  6.         })
when i try to open my page in ie9 I got an error like below.

Stop running this script?

A script on this page is causing your web browser to run slowly.
If it continues to run, your computer might become
unresponsive.

Have any idea ?