getXpath.js

function getPathTo(element) {
    if (element.id!=='')
        return 'id("'+element.id+'")';
    if (element===document.body)
        return element.tagName;

    var ix= 0;
    var siblings= element.parentNode.childNodes;
    for (var i= 0; i<siblings.length; i++) {
        var sibling= siblings[i];
        if (sibling===element)
            return getPathTo(element.parentNode)+'/'+element.tagName+'['+(ix+1)+']';
        if (sibling.nodeType===1 && sibling.tagName===element.tagName)
            ix++;
    }
}

var getElementByXpath = function (path) {
      return document.evaluate(path, document, null, 9, null).singleNodeValue;
};

$(function(){
    $('*').bind('click',function(event){
        var x = event.pageX - window.pageXOffset;
        var y = event.pageY - window.pageYOffset;
        element = document.elementFromPoint(x,y);
        var path = getPathTo(element); 
        console.log(path);
        var _element = getElementByXpath(path);
        console.log(_element);
        event.stopPropagation();
        });
});