var nReload = 4;

function NewVerifyImage()
{
    if (nReload <= 2)
        if (nReload <= 0)
        {
            alert("Sorry, too many reloads.");
            return;
        }
        else
            alert("For security, only " + nReload + " more reloads are allowed");
    nReload--;

        //
        // This code now works in both IE and FireFox
        //
    var         e_img;

    e_img = document.getElementById("vimg");
    if (e_img)
                //
                // FireFox attempts to "optimize" by not reloading
                // the image if the URL value doesn't actually change.
                // So, we make it change by adding a different
                // count parameter for each reload.
                //
        e_img.setAttribute("src",e_img.src+'?count='+nReload);
}