}\r
\r
return true;\r
+ },\r
+\r
+ contains : function( tagNames )\r
+ {\r
+ var elements = this.elements;\r
+ for ( var i = 0 ; i < elements.length ; i++ )\r
+ {\r
+ if ( elements[ i ].getName() in tagNames )\r
+ return elements[ i ];\r
+ }\r
+\r
+ return null;\r
}\r
};\r