function at_show_aux(parent, child)
{
	var p = document.getElementById(parent);
	var c = document.getElementById(child);
	p.className = "active";
	var top  = (c["at_position"] == "y") ? p.offsetHeight+2 : 0;
	var left = (c["at_position"] == "x") ? p.offsetWidth +2 : 0;
	for (; p; p = p.offsetParent)
	{
		if (p.style.position != 'absolute')
		{
			left += p.offsetLeft;
			top  += p.offsetTop;
		}
	}
	c.style.position   = "absolute";
	c.style.top        = top +'px';
	c.style.left       = left+'px';
	c.style.visibility = "visible";
}

function at_hide_aux(parent, child)
{
	document.getElementById(parent).className = "parent";;
	document.getElementById(child ).style.visibility = "hidden";
}

function at_show_p()
{
	c = document.getElementById(this["at_child" ]);
	at_show_aux(this.id, c.id);
	clearTimeout(c["at_timeout"]);
}

function at_show_c()
{
	p = document.getElementById(this["at_parent"]);
	at_show_aux(p.id, this.id);
	clearTimeout(this["at_timeout"]);
}

function at_hide_p()
{
	c = document.getElementById(this["at_child" ]);
	c["at_timeout"] = setTimeout("at_hide_aux('"+this.id+"', '"+c.id+"')", 100);
}

function at_hide_c()
{
	p = document.getElementById(this["at_parent"]);
	this["at_timeout"] = setTimeout("at_hide_aux('"+p.id+"', '"+this.id+"')", 100);
}

function at_attach(parent, child, position)
{
	p = document.getElementById(parent);
	c = document.getElementById(child);
	p["at_child"]    = c.id;
	c["at_parent"]   = p.id;
	c["at_position"] = position;
	p.onmouseover = at_show_p;
	p.onmouseout  = at_hide_p;
	c.onmouseover = at_show_c;
	c.onmouseout  = at_hide_c;
}

function dhtmlmenu_build_aux(parent, child, position)
{
	document.getElementById(parent).className = "parent";
	document.write('<div class="vert_menu" id="'+parent+'_child">');
	n = 0;
	for (var i in child)
	{
		if (i == '-')
		{
			document.getElementById(parent).href = child[i];
			continue;
		}
		if (typeof child[i] == "object")
		{
			document.write('<a class="parent" id="'+parent+'_'+n+'">'+i+'</a>');
			dhtmlmenu_build_aux(parent+'_'+n, child[i], "x");
		}
		else document.write('<a id="'+parent+'_'+n+'" href="'+child[i]+'">'+i+'</a>');
		n++;
	}
	document.write('</div>');
	at_attach(parent, parent+"_child", position);
}

function dhtmlmenu_build(menu)
{
	for (var i in menu) dhtmlmenu_build_aux(i, menu[i], "y");
}