function turn() {
	if (document.images) {

		for (var i=0; i<turn.arguments.length; i+=2) {
		obj = document[turn.arguments[i]];
		st = turn.arguments[i+1];
		old = obj.src;
		x = old.indexOf('_');
		x_obj = old.substr(0,x);
		n_obj = (st == 1) ? "_over.gif" : "_out.gif";
		x_obj += n_obj;
		obj.src = x_obj;
		}
	}
}