[jQuery] jquery.ui.cascade null/not an object/undefined, etc etc.

[jQuery] jquery.ui.cascade null/not an object/undefined, etc etc.


So I'm sure I'm just missing something simple, but I'm having a
problem with the cascade plug in. When debugging in visual studio, it
stops on the "if($.ui.cascade.ext) {" line (line 35), and says it is
null or not an object. When debugging in firebug, it says
"$.ui.cascade is undefined". Can someone help me? This is killing
me... thanks!