javascript debugging in internet explorer

Assume, There is a web project that work fine in IE8 and FF3+ but there is some java script error in IE7- and the only thing 开发者_如何学JAVAthat you have to find the problem is just an error from developer toolbar in browser mode IE7 like this:

Expected identifier, string or number Persons, line 135713438 character 9

and of course there is no line 135713438 and your English is very bad :D

So what can you do?

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You could try Firebug Lite:

http://getfirebug.com/firebuglite

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You could try MS Script Editor, free component of Microsoft Office XP/2003. Read this article for more info about how to use it.