/**
 * Set active item and deactivate previous
 * @param item - new active link
 * @return
 */
function setActiveSublink(item)
{
	$("li[class=submenu_sublink_active]").attr("class", "");
	$(item).attr("class", "submenu_sublink_active");
}

function sleep (seconds)
{
	var start = new Date().getTime();
	while (new Date() < start + seconds*1000) {}
	return 0;
}