IE is now forced layout if it doesn't have it (such that opacity now works as...

IE is now forced layout if it doesn't have it (such that opacity now works as expected). (Ticket #4).

fx/fx.js

@@ -211,6 +211,11 @@ $.fx = function(el,op,ty){
 		}
 	};
 
+	// IE has trouble with opacity if it doesn't have layout
+	if ( $.browser == "msie" && !z.el.currentStyle.hasLayout ) {
+		y.zoom = 1;
+	}
+
 	// Remember  the overflow of the element
 	z.oldOverflow = y.overflow;