function window_size(){
	var s={w:0,h:0};
  if(typeof(window.innerWidth)=='number'){
    s.w=window.innerWidth;
    s.h=window.innerHeight;
  }else if(document.documentElement && (document.documentElement.clientWidth || document.documentElement.clientHeight)){
    s.w=document.documentElement.clientWidth;
    s.h=document.documentElement.clientHeight;
  }else if(document.body && (document.body.clientWidth || document.body.clientHeight)){
    s.w=document.body.clientWidth;
    s.h=document.body.clientHeight;
  }
	return s;
}