gistfile1.js

$('#mouseover-top').bind('mouseenter', function(e) {
            var tab = that.tabs[that.settings.tab];
            var elem = $('#' + that.settings.tab + '-box');
            var $this = $(this);
            $('#mouseover-bottom').show();
            var speed = Math.abs(tab.top) / (tab.height - that.settings.height);
            elem.stop().animate({top: 0}, Math.round(that.settings.maxSpeed * speed), function() {
                $this.hide();
                tab.top = 0;
            });
        }).bind('mouseleave', function(e) {
            var tab = that.tabs[that.settings.tab];
            var elem = $('#' + that.settings.tab + '-box');
            elem.stop();
            tab.top = Math.round(parseInt(elem.css('top').replace(/px/g, '')));
        });

        $('#mouseover-bottom').bind('mouseenter', function(e) {
            var tab = that.tabs[that.settings.tab];
            var elem = $('#' + that.settings.tab + '-box');
            var $this = $(this);
            $('#mouseover-top').show();
            var speed = 1 - Math.abs(tab.top) / (tab.height - that.settings.height);
            elem.stop().animate({top: (-1 * (tab.height - that.settings.height))}, Math.round(that.settings.maxSpeed * speed), function() {
                $this.hide();
                tab.top = elem.css('top');
            });
        }).bind('mouseleave', function(e) {
            var tab = that.tabs[that.settings.tab];
            var elem = $('#' + that.settings.tab + '-box');
            elem.stop();
            tab.top = Math.round(parseInt(elem.css('top').replace(/px/g, '')));
        });