This is a basic Toolbar Script which fixes a specified DIV on top of the upper browser border.
<!-- Toolbar >> Start -->
var $toolbar = $(".qc-toolbar").addClass("toolbar-absolute");
if($toolbar.length !== 0) {
var $view = $(document);
var menuHeight = $toolbar.height();
var $ghost = $('<div class="ghost">').height(menuHeight).insertBefore($toolbar);
var originalMenuTop = $toolbar.offset().top;
$view.bind("scroll resize", function () {
var viewTop = $view.scrollTop();
if ((viewTop >= originalMenuTop) && !$toolbar.is(".toolbar-fixed")) {
$toolbar.removeClass("toolbar-absolute").addClass("toolbar-fixed");
} else if ((viewTop < originalMenuTop) && $toolbar.is(".toolbar-fixed")) {
$toolbar.removeClass("toolbar-fixed").addClass("toolbar-absolute");
};
});
};
<!-- Toolbar >> End -->