for ( var i = 0, l = check.length; i < l; i++ ) {
ok( obj[ check[i] ], "Make sure data- property exists when calling data-." );
ok( obj2[ check[i] ], "Make sure data- property exists when calling data-." );
for ( var i = 0, l = check.length; i < l; i++ ) {
ok( obj[ check[i] ], "Make sure data- property exists when calling data-." );
ok( obj2[ check[i] ], "Make sure data- property exists when calling data-." );