Insert Quality Here

In the last throws of a testing sprint I started to go through my check list for all of the Atalasoft web components in IE (browser versions had been divied up for testing, and I got IE).  Not too long ago I read an article about IE's developer toolbar, at the time I thought "Oh, good. I can debug in IE now too -- sweet!" All had been going along fine now till now.  After the latest version in the web controls had been added I started to see the following exception when run in IE,

Microsoft JScript runtime error: Object doesn't support this property or method

when it hits this function,

 function ParseDoc(doc)
    {
        var aRules = GatherRulesFromDoc(doc);
        collSelectors = parser.Parse(aRules);
        
        // Set quirks mode if necessary
        if("BackCompat" == doc.compatMode)
        {
            for(var i = 0; i < collSelectors.Count; i++)
            {
                collSelectors.item(i).SetQuirksMode(true);
            }
       }

  }

Which was popped up every time I ran any script associated with the web controls, and after a few pop ups annotations added to the image disappeared.  Given that this function is nowhere to be found in any of Atalasoft's web libraries a quick search on the error brought up this rather helpful post that pointed to the culprit -- IE Developer Toolbar.   You can also just disable it, as I did, as there is a perfectly good and safe debugging tool already available -- FireBug. 

Yes, debugging and testing tool do change the system, but good ones never destroy data.