// JavaScript get the page area
function get_area()
	{
	var qs = window.location.search.substring(1).split('&');
	var j = 0;
	var area = null;

	for (var i = 0; i < qs.length; i++)
		{
		qs[i] = qs[i].split('=');
		}
		
	for (j in qs)
		{
		
		if (qs[j][0] == 'area')
			{
			area = qs[j][1];
			}
		}
	
	return area;
	}

// JavaScript from show when click
function toggle_show(objeto)
	{
	var x = 0;
	for (x in objetoId)
		{
		if (objetoId[x].id == objeto)
			{
			if (objetoId[x].style.display == 'block')
				{
				objetoId[x].style.display = 'none';
				plusId[x].style.display = 'block';
				minusId[x].style.display = 'none';
				}
			else
				{
				objetoId[x].style.display = 'block';
				plusId[x].style.display = 'none';
				minusId[x].style.display = 'block';
				}
			}
		}
	}
	
// JavaScript from show
	function construct_toggle()
		{
		var x = 0;
		var i = 0;
		objetoId = new Array();
		plusId = new Array();
		minusId = new Array();
		control = document.getElementById('internal_menu').getElementsByTagName('ul');
		var area = get_area();
		for (x in control)
			{
			if (control[x].className == 'internal_menu_item')
				{
				objetoId[i] = document.getElementById('li0'+i);
				objetoId[i].style.display = 'none';
				plusId[i] = document.getElementById('li0'+i+'_plus');
				plusId[i].style.display = 'block';
				minusId[i] = document.getElementById('li0'+i+'_minus');
				minusId[i].style.display = 'none';
				if (area == i+1)
					{
					toggle_show('li0'+i);
					}
				
				i++;
				}
			}
		}
document.onload = construct_toggle();