function setscreendim()
{
    var width = screen.width;
    var height = screen.height;
    
    var controlPlace = "ctl00_pag_";
    var hdnScreenWidth = document.getElementById(controlPlace + "hdnScreenWidth");
    var hdnScreenHeight = document.getElementById(controlPlace + "hdnScreenHeight");
    
    hdnScreenWidth.value = width;
    hdnScreenHeight.value = height;
    
    var advertisementHighRes = document.getElementById('advertisementHighRes');
    
    if(width >= 1280)
    {
        advertisementHighRes.className = 'advertisementHighRes';
    }
    else
    {
        advertisementHighRes.className = 'display_none';
    }    
}