Jquery FancyBox Add a custom button like minimize

I need 开发者_C百科to add on my Fancybox a minimize button. For exemple I'am using FancyBox to show a form. In this case the minimize button allow me to hide the form and the close button allows me to hide and clear the form.

So I started to try to insert another button like the close button but maybe because I'm a begginer in Jquery I didn't arrive to do that. I tried to inspire from this post but it's for a previous version

For info I use the last Version: 1.3.4 (2010/11/11)

Thanks