$(document).ready(function() {
    // set navigation controls
    $("#leftnav ul:first").addClass("sf-menu").addClass("sf-vertical");
    $("#leftnav ul:first").superfish({
        animation: { height: 'show' },
        delay: 1200
    });
    var wht = -1;
    window.onresize = function() {
        if (wht != -1) window.clearTimeout(wht);
        wht = window.setTimeout(get_layout_h, 200);
    }
    $("#layout #main").height(get_layout_h());
});
function get_layout_h() { return $(window).height() - $("#layout #banner").height() - $("#layout #footer").height() - 20; }