Simplify getAll helper

Author: markelog

src/manipulation.js

@@ -613,19 +613,9 @@ function cloneCopyEvent( src, dest ) {
 }
 
 function getAll( context, tag ) {
-	var elems, elem,
-		i = 0,
-		ret = typeof context.getElementsByTagName !== "undefined" ? context.getElementsByTagName( tag || "*" ) :
-			typeof context.querySelectorAll !== "undefined" ? context.querySelectorAll( tag || "*" ) :
-			undefined;
-
-	if ( !ret ) {
-		for ( ret = [], elems = context.childNodes || context; (elem = elems[ i ]) != null; i++ ) {
-			core_push.apply( ret, !tag || jQuery.nodeName( elem, tag ) ?
-					getAll( elem, tag ) :
-					elems );
-		}
-	}
+	var ret = context.getElementsByTagName ? context.getElementsByTagName( tag || "*" ) :
+			context.querySelectorAll ? context.querySelectorAll( tag || "*" ) :
+			[];
 
 	return tag === undefined || tag && jQuery.nodeName( context, tag ) ?
 		jQuery.merge( [ context ], ret ) :