var CASE_LOWER = 0;var CASE_UPPER = 1;
function array_change_key_case(array) {
	// Changes all keys in an array
	// 
	// +   original by: Ates Goral (http://magnetiq.com)
	// +   improved by: marrtins

	var case_fn, tmp_ar = new Object, argc = arguments.length, argv = arguments, key;

	if (array instanceof Array) {
		return array;
	}

	if (array instanceof Object) {
		if( argc == 1 || argv[1] == 'CASE_LOWER' || argv[1] == 0 || ( CASE_LOWER && arguments[1] == CASE_LOWER ) ){
			case_fn = "toLowerCase";
		} else{
			case_fn = "toUpperCase";
		}
		for (var key in array) {
			tmp_ar[key[case_fn]()] = array[key];
		}
		return tmp_ar;
	}

	return false;
}