var submenu_i = 0;
var submenu_lis = $$("#submenu ul li");

var submenu_x = 640 / submenu_lis.length;
var submenu_start = submenu_x / 2;
var submenu_y = 12.5;

var submenu_positions = [0,2,5,6,4,3,1,2,4,5,7,5,4,1,2,5,3,6,3];

submenu_lis.each(function(li) {

	if (submenu_positions.length > submenu_lis.length) {
		var v_pos = submenu_positions[Math.round(submenu_i * submenu_positions.length / submenu_lis.length)];
	} else {
		var v_pos = submenu_positions[submenu_i % submenu_positions.length];
	}

	li.setStyle({
		position: "absolute",
		top: v_pos * submenu_y + "px",
		left: submenu_start + submenu_i * submenu_x + "px"
	});
	
	submenu_i++;

});