Browser / Screen / Document width and height From http://stackoverflow.com/questions/3437786/get-the-size-of-the-screen-current-web-page-and-browser-window

measure.js

/*If you are using jQuery, you can get the size of the window or the document using jQuery methods:*/
$(window).height();   // returns height of browser viewport 
$(document).height(); // returns height of HTML document (same as pageHeight in screenshot) 
$(window).width();   // returns width of browser viewport 
$(document).width(); // returns width of HTML document (same as pageWidth in screenshot) 

/*For screen size you can use the screen object in the following way:*/  
screen.height; 
screen.width;

/* Wihout jQuery */
var width = window.innerWidth
|| document.documentElement.clientWidth
|| document.body.clientWidth;

var height = window.innerHeight
|| document.documentElement.clientHeight
|| document.body.clientHeight;