Clicktoshow
From Facebook Developer Wiki
This is an element of DynamicFBML/Visibility
This will show the specified ids when the object is clicked. (display:"")
<a href="#" clicktoshow="id1,id2,id3">
Also see clicktohide, clicktotoggle
This will show the specified ids when the object is clicked. (display:"")
<a href="#" clicktoshow="id1,id2,id3">
Also see clicktohide, clicktotoggle