-} else if ( Array.prototype.indexOf ) {
- var indexOf = Array.prototype.indexOf,
- allSort = document.getElementsByTagName("*");
-
- sortOrder = function( a, b ) {
- var ret = indexOf.call( allSort, a ) - indexOf.call( allSort, b );
- if ( ret === 0 ) {
- hasDuplicate = true;
- }
- return ret;
- };