var tree_flag = false;
var prev_ul = "";
function convertToTree(id)
{
	var ul = document.getElementById(id);
	ul.className = "folders";
	var lis = ul.getElementsByTagName("LI");
	for (i = 0; i < lis.length; i++) {
		if (lis[i].getElementsByTagName("UL").length == 0) {
			lis[i].className = "file";
			lis[i].onclick = function()
			{
				tree_flag = true;
				if (typeof action == "function") {
					var par = this.parentNode;
					var path = this.innerHTML;
					while (par.className != "folders") {
						par = par.parentNode;
					}
					path = path.replace(/[\n\t\r]/ig, "");
					action(this, path);
				}
			}
		} else {
			lis[i].className = "folder";
			lis[i].getElementsByTagName("UL")[0].style.display = "none";
			lis[i].onclick = function()
			{
				var ul = this.getElementsByTagName("UL")[0];
				if(prev_ul != "" && prev_ul != ul) prev_ul.style.display = "none";
				if (ul.style.display == "none") {
					ul.style.display = "block";
					this.className = "folder-open";
					tree_flag = true;
					if (this.parentNode.className == "folders") tree_flag = false;
				} else {
					if (!tree_flag) {
						ul.style.display = "none";
						this.className = "folder";
						tree_flag = true;
					} else {
						if (this.parentNode.className == "folders") tree_flag = false;
					}
				}
				prev_ul = ul;
			}
		}
	}
}

function action(obj, path)
{
//	alert(path);
}