rem: element.treeElement.collapse(); 
add: if (event.altKey) element.treeElement.collapseRecursively(); else element.treeElement.collapse(); 
context: TreeElement.treeElementToggled = function(event){    var element = event.currentTarget;    if (!element || !element.treeElement)        return;    if (event.offsetX <= 20 && element.treeElement.hasChildren) {        if (element.treeElement.expanded) {            element.treeElement.collapse();        } else {            element.treeElement.expand();        }    }}
meta: 5650	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/5650/d093d08900157f281c20d47e475d57fe3cd916a6/treeoutline.js/buggy/WebKit/WebInspector/webInspector/treeoutline.js