cross browser code to get the browser window width and height

cross-browser-width-height

var w = window,
    d = document,
    e = d.documentElement,
    g = d.getElementsByTagName('body')[0],
    x = w.innerWidth || e.clientWidth || g.clientWidth,
    y = w.innerHeight|| e.clientHeight|| g.clientHeight;

console.log("browser width = "+x);
console.log("browser height = "+y);