Sean Bluett says..... if, like me, half your life is spent trying to make Internet Explorer behave you should check this out. I use fire bug on firefox but had no real debugger for IE as microsoft script debugger kept crashing.
But you can use firbug in any browser !! Just add a script tag with teh source below
script type='text/javascript'
src='http://getfirebug.com/releases/lite/1.2/firebug-lite-compressed.js'
script
Or open this link here