function open_win(href) 
{
    window.open(href, "_blank"); //, "toolbar=yes, location=yes, directories=no, status=no, menubar=yes, scrollbars=yes, resizable=no, copyhistory=yes"
}

function centerUpdatePanel() {
    centerElementOnScreen(document.getElementById("ajxDefaultLoadingPanel"));
}

function centerElementOnScreen(element) {
    var scrollTop = document.body.scrollTop;
    var scrollLeft = document.body.scrollLeft;

    var viewPortHeight = document.body.clientHeight;
    var viewPortWidth = document.body.clientWidth;

    if (document.compatMode == "CSS1Compat") {
        viewPortHeight = document.documentElement.clientHeight;
        viewPortWidth = document.documentElement.clientWidth;

        scrollTop = document.documentElement.scrollTop;
        scrollLeft = document.documentElement.scrollLeft;
    }

    var topOffset = Math.ceil(viewPortHeight / 2 - element.offsetHeight / 2);
    var leftOffset = Math.ceil(viewPortWidth / 2 - element.offsetWidth / 2);

    var top = scrollTop + topOffset - 40;
    var left = scrollLeft + leftOffset - 70;

    element.style.position = "absolute";
    element.style.top = top + "px";
    element.style.left = left + "px";
}