/*
*  Small Loading graphic
*/

var _loading_img = 0;

function ShowLoading() {

    var $d = $("#img_loading");
    var dleft = ($(window).width() - $d.width()) / 2 + $(document).scrollLeft();
    var dtop = ($(window).height() - $d.height()) / 2 + $(document).scrollTop();

    $d.css({
        position: 'absolute',
        top: dtop,
        left: dleft
    });

    $d.show();

    _loading_img = setTimeout("HideLoadingDelayed();", 2500);
}

function HideLoadingDelayed() {  // delay before showing
    if (_loading_img != 0) {
        clearTimeout(_loading_img);
        _loading_img = 0;
    }
    var $d = $("#img_loading");
    $d.hide();
}