function menu_item_selected(item_id) {
	document.getElementById(item_id).className = "menu-item-selected";
}

function menu_item_noselected(item_id) {
	document.getElementById(item_id).className = "";
}

function openwin($url,$name,$width,$height)
{
	var left = Math.round((screen.width - $width)/2);
	var top = Math.round((screen.height - $height)/2);

	cur_x = document.all ? window.screenLeft : window.screenX;
	cur_y = document.all ? window.screenTop : window.screenY;

	var $window_params = 'left='+left+',top='+top+',width='+$width+',height='+$height+',status=yes,resizable=yes,menubar=no,scrollbars=yes,toolbar=no';
	return window.open($url,$name,$window_params);
}