Get Element XPath

getxpath.js

var getElementXPath = function(element) {
	if (element && element.id) {
		// has id, so use it instead of full xpath
		return '//' + element.nodeName.toLowerCase() + '[@id="' + element.id + '"]';
	} else {
		// gets absolute xpath
		return getElementTreeXPath(element);
	}
};
var getElementTreeXPath = function(element) {
	var paths = [];
	// Use nodeName (instead of localName) so namespace prefix is included (if any).
	for (; element && element.nodeType == 1; element = element.parentNode) {
		var index = 0;
		for (var sibling = element.previousSibling; sibling; sibling = sibling.previousSibling) {
			// Ignore document type declaration.
			if (sibling.nodeType == Node.DOCUMENT_TYPE_NODE) continue;
			if (sibling.nodeName == element.nodeName) ++index;
		}

		var tagName = element.nodeName.toLowerCase();
		var pathIndex = ('[' + (index+1) + ']');
		paths.splice(0, 0, tagName + pathIndex);
	}
	return paths.length ? '/' + paths.join('/') : null;
};