var openImg = new Image();
openImg.src = "open.gif";
var closedImg = new Image();
closedImg.src = "closed.gif";

function showBranch(branch){
	var objBranch = document.getElementById(branch);

	if(objBranch.style.display=="block" | objBranch.style.display=="")
		objBranch.style.display="none";
	else
		objBranch.style.display="block";
	swapFolder('I' + branch);
}

function swapFolder(img){
	objImg = document.getElementById(img);
	if(objImg.src.indexOf('closed.gif')>-1)
		objImg.src = openImg.src;
	else
		objImg.src = closedImg.src;
}

function sleep(numberMillis){
  var now = new Date();
  var exitTime = now.getTime() + numberMillis;
  while (true){
    now = new Date();
    if (now.getTime() > exitTime) return;
  }
};

function highlightBranch(branch){

	var objBranch = document.getElementById(branch);
	var objBack = objBranch.style.background;
 
  objBranch.style.background = "#FFCC80";
  window.setTimeout("unhiglightBranch('" + branch + "','" + objBack + "')", 5000)

}

function unhiglightBranch(branch, objBack) {
  var objBranch = document.getElementById(branch);
  objBranch.style.background = objBack;
}