rem: if (!this.childData || !this.childData.isLoaded) 
add: if (!("childData" in this) || !this.childData.isLoaded) 
context: function sv_lscroll (line){    if (!this.childData || !this.childData.isLoaded)    {        /* the source hasn't been loaded yet, queue the scroll for later. */        this.pendingScroll = [line, 0];        return;    }    var first = this.outliner.getFirstVisibleRow();    var last = this.outliner.getLastVisibleRow();    var fuzz = 2;    if (line < (first + fuzz) || line > (last - fuzz))        this.scrollTo (line, 0);}    
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/59888118873dc9f6554d0fc89b4d0e80b8095169/venkman-outliners.js/clean/extensions/venkman/resources/content/venkman-outliners.js