Removed case-sensitive .nodeName check.

Fixes #5557 - Comparing element.nodeName directly against upper case tag names can cause problems.

Author: scottgonzalez

ui/jquery.ui.accordion.js

@@ -40,9 +40,7 @@ $.widget("ui.accordion", {
 		this.element.addClass("ui-accordion ui-widget ui-helper-reset");
 
 		// in lack of child-selectors in CSS we need to mark top-LIs in a UL-accordion for some IE-fix
-		if (this.element[0].nodeName == "UL") {
-			this.element.children("li").addClass("ui-accordion-li-fix");
-		}
+		this.element.children("li").addClass("ui-accordion-li-fix");
 
 		this.headers = this.element.find(o.header).addClass("ui-accordion-header ui-helper-reset ui-state-default ui-corner-all")
 			.bind("mouseenter.accordion", function(){ $(this).addClass('ui-state-hover'); })