rem: if (dirElem.display == "block") { 
add: if (dirStyle.display == "block") { 
context: function toggleTree(dir){  var dirElem = $(dir);  var dirStyle = dirElem.style;  var dirImg = $("I" + dir);  if (dirElem.display == "block") {    dirStyle.display = "none";    dirImg.src = closedImg.src;  } else {    dirStyle.display = "block";    dirImg.src = openImg.src;  }}
meta: 4184	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/4184/951d85945e8eb373578f81042b5de5a3e525b407/browser.js/clean/tran/exploder/webapps/browser/root/browser.js