var expanded = false;
	var autosave = false;
	var navabc = new Array(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0);
	var files = new Array('abc');

	function nobub()
	{
		window.event.cancelBubble = true;
	}

	function nav_goto(targeturl)
	{
		//window.location = targeturl;
		parent.frames.main.location = targeturl;
	}
	
		function fetch_object(idname)
	{
		if (document.getElementById)
		{
			return document.getElementById(idname);
		}
		else if (document.all)
		{
			return document.all[idname];
		}
		else if (document.layers)
		{
			return document.layers[idname];
		}
		else
		{
			return null;
		}
	}

	function open_close_group(group, doOpen)
	{
		var curdiv = fetch_object("group_" + group);
		var curbtn = fetch_object("button_" + group);

		if (doOpen)
		{
			curdiv.style.display = "";
			curbtn.src = "images/cp_collapse.gif";
			curbtn.title = "";
		}
		else
		{
			curdiv.style.display = "none";
			curbtn.src = "images/cp_expand.gif";
			curbtn.title = "";
		}

	}

	function toggle_group(group)
	{
		var curdiv = fetch_object("group_" + group);

		if (curdiv.style.display == "none")
		{
			open_close_group(group, true);
		}
		else
		{
			open_close_group(group, false);
		}

		if (autosave)
		{
			save_group_prefs(group);
		}
	}

	function expand_all_groups(doOpen)
	{
		var navobj = null;
		for (nav_file in files)
		{
			navobj = eval('nav' + files[nav_file]);
			for (var i = 0; i < navobj.length; i++)
			{
				open_close_group(files[nav_file] + '_' + i, doOpen);
			}
		}

		if (autosave)
		{
			save_group_prefs(-1);
		}
	}

	function save_group_prefs(groupid)
	{
		var opengroups = new Array();
		var counter = 0;
		var navobj = null;

		for (nav_file in files)
		{
			navobj = eval('nav' + files[nav_file]);
			for (var i = 0; i < navobj.length; i++)
			{
				if (fetch_object("group_" + files[nav_file] + '_' + i).style.display != "none")
				{
					opengroups[counter] = files[nav_file] + '_' + i;
					counter++;
				}
			}
		}

//		window.location = "?op=savenavprefs&nojs=0&navprefs=" + opengroups.join(",") + "#grp" + groupid;
	}

	function read_group_prefs()
	{
		var navobj = null;
		for (nav_file in files)
		{
			navobj = eval('nav' + files[nav_file]);
			for (var i = 0; i < navobj.length; i++)
			{
				open_close_group(files[nav_file] + '_' + i, navobj[i]);
			}
		}
	}