add: alert("eavl"); 
context:            callback = function(req) {                if (req.readyState == 4) {                    var jTree = eval("(" + req.responseText + ")");                    var root = jTree.root;                    buildTree(root);                }            }        
meta: 8755	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/8755/6e162b8d8fc20add94375f60aa541ff3ec9927ae/component.js/buggy/code/run-time/samples/jmaki/src/main/webapp/resources/dojo/tree/component.js