function SetScreenResolution(hiddenFieldName) {
    var hfRes = document.getElementById(hiddenFieldName);
    //hfRes.value = document.body.clientWidth.toString() + "x" + document.body.clientHeight.toString();
    hfRes.value = document.documentElement.clientWidth.toString() + "x" + document.documentElement.clientHeight.toString();
    setTimeout("SetScreenResolution('" + hiddenFieldName + "');", 1000);
}

function SetDimensions() {
    var dimensions = document.documentElement.clientWidth.toString() + 'x' + document.documentElement.clientHeight.toString();
       if(window.location.href.indexOf('?') != -1)
           window.location = window.location + '&d=' + dimensions;
       else
           window.location = window.location + '?d=' + dimensions;
}