Jquery - Different Function On Second Click

I'm trying to create a curtain Opening & Closing effect. But for some reason I can't make my curtains close once they're opened. Here's what I have so far: http://jsfiddle.net

Solution 1:

Change

if ($('.curtain').attr('rel', 'open')){

to

if ($('.curtain').attr('rel') == 'open') {

And do the same for the second if statement. The .attr(name, value) will always set the attribute to the specified value, whereas .attr(name) will simply return the value

Updated Fiddle