// Browser Window Size and Position


var sW = screen.availWidth; 

var sH = screen.availHeight;

 
var pW = window.innerWidth != null? window.innerWidth : document.documentElement && document.documentElement.clientWidth ?       document.documentElement.clientWidth : document.body != null ? document.body.clientWidth : null;
 

var pH =  window.innerHeight != null? window.innerHeight : document.documentElement && document.documentElement.clientHeight ?  document.documentElement.clientHeight : document.body != null? document.body.clientHeight : null;
 

var pX = typeof window.screenLeft != null? window.screenLeft : window.screenX;

var pY = typeof window.screenTop != null? window.screenTop :window.screenY ;