var showmenu = function(ev, id, navtype, pos) {
	var naventry=$("#naventry_"+navtype+"_"+id);
	var naventry_pos=naventry.offset();
	var subnaventry=$("#popupmenu_"+navtype);

	clearhidemenu(navtype);

	var lx=0;
	var ty=0;
	if (pos == "tc") {
		lx=0;
		ty=naventry.height();
	}
	if (pos == "bc") {
		lx=0;
		ty=naventry.height();
	}
	if (pos == "l") {
		lx=naventry.width()+10;
		ty=30;
	}
	if (pos == "r") {
		lx=0-naventry.width()-10;
		ty=0;
	}
	subnaventry.css("top", Math.round(naventry_pos.top + ty));
	subnaventry.css("left", Math.round(naventry_pos.left + lx));
	var html="";
	if (navtype == "horiz_dyn") {
		html=horiz_dyn_linkset[id];
	}
	if (navtype == "vert_dyn") {
		html=vert_dyn_linkset[id];
	}
	subnaventry.html(html);
	subnaventry.css("width", defaultMenuWidth);
	subnaventry.css("visibility", "visible");
	subnaventry.show("fast");
	return false;
}

function delayhidemenu(navtype) {
	$(this).data("menutimeout", setTimeout(function() {
		$("#popupmenu_"+navtype).hide("slow");
	}, 500));
}

function clearhidemenu() {
	clearTimeout($(this).data("menutimeout"));
}