function pm_get_height() {
    h = window.innerHeight;
    if (h == null) {
	h = document.body.clientHeight;
    }
    return h;
}

function pm_rays() {
    img = document.getElementById("pmbr_rays");
    height = pm_get_height();
    img.style.top = (height *0.4) + "px";
    img.style.right = "0px";
    img.style.height = height*0.6;
    img.style.display = "block";

    img = document.getElementById("pmbr_rays_inv");
    img.style.top = height + "px";
    img.style.right = "0px";
    img.style.height = height*0.6;
    img.style.display = "block";
}


/*Sys.Application.add_load(function(sender, args) {
    $addHandler(window, 'resize', window_resize);
});

var resizeTimeoutId;

function window_resize(e) {
     window.clearTimeout(resizeTimeoutId);
     resizeTimeoutId = window.setTimeout('pm_rays();', 10);
}
*/