//
// global variables
//
var currentid;

var home_on, home_off;
home_on = new Image();
home_on.src = 'images/menu_home_on.gif';
home_off = new Image();
home_off.src = 'images/menu_home_off.gif';

var background_on, background_off;
background_on = new Image();
background_on.src = 'images/menu_background_on.gif';
background_off = new Image();
background_off.src = 'images/menu_background_off.gif';

var join_on, join_off;
join_on = new Image();
join_on.src = 'images/menu_join_on.gif';
join_off = new Image();
join_off.src = 'images/menu_join_off.gif';

var start_on, start_off;
start_on = new Image();
start_on.src = 'images/menu_start_on.gif';
start_off = new Image();
start_off.src = 'images/menu_start_off.gif';

var discussion_on, discussion_off;
discussion_on = new Image();
discussion_on.src = 'images/menu_discussion_on.gif';
discussion_off = new Image();
discussion_off.src = 'images/menu_discussion_off.gif';

var contact_on, contact_off;
contact_on = new Image();
contact_on.src = 'images/menu_contact_on.gif';
contact_off = new Image();
contact_off.src = 'images/menu_contact_off.gif';


var x_home_on, x_home_off;
x_home_on = new Image();
x_home_on.src = 'images/menu_x_home_on.gif';
x_home_off = new Image();
x_home_off.src = 'images/menu_x_home_off.gif';

var x_background_on, x_background_off;
x_background_on = new Image();
x_background_on.src = 'images/menu_x_background_on.gif';
x_background_off = new Image();
x_background_off.src = 'images/menu_x_background_off.gif';

var x_join_on, x_join_off;
x_join_on = new Image();
x_join_on.src = 'images/menu_x_join_on.gif';
x_join_off = new Image();
x_join_off.src = 'images/menu_x_join_off.gif';

var x_start_on, x_start_off;
x_start_on = new Image();
x_start_on.src = 'images/menu_x_start_on.gif';
x_start_off = new Image();
x_start_off.src = 'images/menu_x_start_off.gif';

var x_discussion_on, x_discussion_off;
x_discussion_on = new Image();
x_discussion_on.src = 'images/menu_x_discussion_on.gif';
x_discussion_off = new Image();
x_discussion_off.src = 'images/menu_x_discussion_off.gif';

var x_discuss_on, x_discuss_off;
x_discuss_on = new Image();
x_discuss_on.src = 'images/menu_x_discuss_on.gif';
x_discuss_off = new Image();
x_discuss_off.src = 'images/menu_x_discuss_off.gif';

var x_topics_on, x_topics_off;
x_topics_on = new Image();
x_topics_on.src = 'images/menu_x_topics_on.gif';
x_topics_off = new Image();
x_topics_off.src = 'images/menu_x_topics_off.gif';


var x_news_on, x_news_off;
x_news_on = new Image();
x_news_on.src = 'images/menu_x_news_on.gif';
x_news_off = new Image();
x_news_off.src = 'images/menu_x_news_off.gif';


var x_contact_on, x_contact_off;
x_contact_on = new Image();
x_contact_on.src = 'images/menu_x_contact_on.gif';
x_contact_off = new Image();
x_contact_off.src = 'images/menu_x_contact_off.gif';




//
// roll over
//
function rollover( id )
{
	var letter = id.charAt(0);
	var number = id.charAt(1);	

	var temp = eval(id + '_on').src
	document.getElementById(id).src = temp;
}

//
// roll out
//
function rollout( id )
{
	var letter = id.charAt(0);
	var number = id.charAt(1);

	var temp = eval(id + '_off').src
	document.getElementById(id).src = temp;
}

//
// load nav
//
function loadnav()
{
	if (currentid == '')
		return;	

	var temp1 = eval(currentid + '_on').src
	document.getElementById(currentid).src = temp1;

	var temp2 = eval(currentid + '_off');
	temp2.src = 'images/menu_' + currentid + '_on.gif';
}