function set_resolution() {
  //winWidth=screen.width;
  //winHeight=screen.height;
  winWidth=document.all?document.body.clientWidth:window.innerWidth;
  winHeight=document.all?document.body.clientHeight:window.innerHeight;
  $.get("set_resolution.php", { width: winWidth , height: winHeight }) ;
}
$(document).ready(function(){
  $(window).bind('resize', function () { 
    set_resolution() ;
  });
});