如何在slideToggle之后测试DIV是打开还是关闭

I have a Jquery Ui button ( #toggleIcons) that when clicked, toggles a div (.icons) to show some icons. I am also using Jquery Isotope and Infinitescroll to add new images dynamically. What I am trying to do is to have a way for the slideToggle state to be retained as the new images are added and updated. Ifinitescroll has a callback function so that I can update the page and state of the icons.I have a Jquery Ui button ( #toggleIcons) that