rem: if (selector instanceof RegExp) 
add: if (isinstance(selector, RegExp)) 
context: function findDynamicRule (selector){    var rules = frames[0].document.styleSheets[1].cssRules;    if (selector instanceof RegExp)        fun = "search";    else        fun = "indexOf";    for (var i = 0; i < rules.length; ++i)    {        var rule = rules.item(i);        if (rule.selectorText && rule.selectorText[fun](selector) == 0)            return {sheet: frames[0].document.styleSheets[1], rule: rule,                    index: i};    }    return null;}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/aedb529bd0a94624792b43137abb3dffe22f350f/static.js/clean/extensions/irc/xul/content/static.js