fso.GetAbsolutePathName(".")

String.prototype.trim = function() { return this.replace(/^\s+|\s+$/, ''); };

Now use

var str = "vishal";
str.trim();

XDocument.DOM.selectSingleNode("//ParentNode");

function traverse(tree) {
if(tree.hasChildNodes()) {
var nodes=tree.childNodes.length;
for(var i=0; i<tree.childNodes.length; i++)
traverse(tree.childNodes(i));
}
else
alert("TagName:" + tree.nodeName + "Type:" + tree.nodeType + "Text:" + tree.text);
}