/*  
 * mug.js
 * DHTML routines for MUG website
 *
 * Author:	John Willis
 * Created:	9/2/2010
 *
 */


function set_class(element, class)
{
	var elem = document.getElementById(element);
	elem.setAttribute("class", class);
}

function deactivate_all()
{
	set_class("d_forums", "link_block_inactive");
	set_class("d_wiki", "link_block_inactive");
	set_class("d_mumpsv1", "link_block_inactive");
	set_class("d_resources", "link_block_inactive");

	show_inactive_image("forums");
	show_inactive_image("wiki");
	show_inactive_image("mumpsv1");
	show_inactive_image("resources");
}

function activate_one(element, link_name)
{
	deactivate_all();
	set_class(element, "link_block_active");
	show_active_image(link_name);
}

function show_active_image(link_name)
{
	var active_element_id = "i_" + link_name + "_active";
	var inactive_element_id = "i_" + link_name + "_inactive";
	
	hide_div(inactive_element_id);
	show_div(active_element_id);
}

function show_inactive_image(link_name)
{
	var active_element_id = "i_" + link_name + "_active";
	var inactive_element_id = "i_" + link_name + "_inactive";
	
	hide_div(active_element_id);
	show_div(inactive_element_id);
}

function show_div(element)
{
	var el = document.getElementById(element);
	el.style.display = "inline";
}
	
function hide_div(element)
{
	var el = document.getElementById(element);
	el.style.display = "none";
}