I will be using IE 9 as my example browser today but you can do these things in Firefox and Google Chrome. So first lets open IE 9 and go to www.devdave.com. Press F12 to open up the developer tools of IE (documentation). You should notice an explorer bar, usually across the bottom of the screen.
Now that we know the class assigned to the div we can use that as a selector in jQuery. Two tabs over from the HTML tab there is a Console tab clicking that will open up a new part of the developer tools.
Since we have the correct selector we can type this to make the selected object slide up.
And then we can type this to make it slide down.
Pressing the Run Script button multiple times will cause the slide to toggle and an alert message to be displayed when its done.