How to use IE for JavaScript script debugging

Script to do the B/s mode of the program many times to use JavaScript script, its function is very powerful, but debugging is very troublesome, because there is no suitable tool, in fact, IE support JavaScript script debugging, just need to the IE and script corresponding settings.
1. Internet Options-> Advanced-> Disable script debugging remove the team behind it. Let IE support script debugging, but this is not enough, we also need to do in the code a simple matter, in the need to debug where to join the debugger, to start debugging from here (sometimes need to reopen IE). When you open this page, you will be prompted with a selection box for scripting Debugging and a tool for debugging.
Here's a simple example.
Script debugging
<body;
alert (str);
}
</script>
Posted
Http://www.cnblogs.com/interboy/archive/2006/08/06/469390.html