rem: if (!jsdScript.isValid) return false; 
context:     function setBP (scriptWrapper)    {        var jsdScript = scriptWrapper.jsdScript;        if (!jsdScript.isValid)            return false;        if (line >= jsdScript.baseLineNumber &&            line <= jsdScript.baseLineNumber + jsdScript.lineExtent &&            jsdScript.isLineExecutable (line, PCMAP_SOURCETEXT))        {            scriptWrapper.setBreakpoint(jsdScript.lineToPc(line,                                                           PCMAP_SOURCETEXT),                                        parentBP);            return true;        }        return false;    };
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/b0b8cec04bd582c27a41817979fe87561132d01d/venkman-debugger.js/clean/extensions/venkman/resources/content/venkman-debugger.js