var hid_layer = 1;
var cur_layer = 2;

function swap_layers()
{
	tmp = hid_layer;
	hid_layer = cur_layer;
	cur_layer = tmp;
}

function get_layer_info()
{
	cur_layer = parent.document.getElementById('activelayer').innerHTML;
	if(cur_layer == 1)
		hid_layer = 2;
	else
		hid_layer = 1;
}

function set_layer_info()
{
	parent.document.getElementById('activelayer').innerHTML = cur_layer;
}

function load_done()
{
	get_layer_info();
	//parent.document.getElementById('main'+hid_layer).style.zindex = -1;
	//parent.document.getElementById('main'+cur_layer).style.zindex = 1;
	//parent.document.getElementById('main'+cur_layer).style.opacity = "0.5";
	parent.document.getElementById('main'+hid_layer).style.display = "inline";
	//parent.document.getElementById('main'+cur_layer).style.opacity = "0.5";
	parent.document.getElementById('main'+cur_layer).style.display = "none";
	//parent.document.getElementById('main'+cur_layer).style.opacity = "1";
	//parent.document.getElementById('main'+hid_layer).style.zindex = 1;
	swap_layers();
	set_layer_info();
	//window.location.href = window.location.pathname = parent.document.getElementById('imain'+cur_layer).src;
	//parent.document.getElementByName('imain'+cur_layer).";
	//window.location.href = window.location.pathname

	// replace target to use our 2 iframe system
	var all_links = document.getElementsByTagName("a");
	for (var i=0; i < all_links.length; i++)
	{
		if(all_links[i].target != "_blank")
		{
			all_links[i].target = "imain"+hid_layer;
		}
	}
}