function sure (in_text) {
	var in_text = (in_text == null) ? "Are you sure?" : in_text;
	return confirm(in_text);
}

function login (url) {
	document.location(url);
}

function array_push ( array ) {
	var i, argv = arguments, argc = argv.length;
	for (i=1; i < argc; i++){
		array[array.length++] = argv[i];
	}
	return array;
}