home_on = new Image;
home_on.src="images/nav/home_on.gif"
help_on = new Image;
help_on.src="images/nav/help_on.gif"
messages_on = new Image;
messages_on.src="images/nav/messages_on.gif"
boards_on = new Image;
boards_on.src="images/nav/boards_on.gif"
locations_on = new Image;
locations_on.src="images/nav/locations_on.gif"
sports_on = new Image;
sports_on.src="images/nav/sports_on.gif"
events_on = new Image;
events_on.src="images/nav/events_on.gif"
news_on = new Image;
news_on.src="images/nav/news_on.gif"
league_on = new Image;
league_on.src="images/nav/league_on.gif"
team_on = new Image;
team_on.src="images/nav/team_on.gif"
player_on = new Image;
player_on.src="images/nav/player_on.gif"
admin_on = new Image;
admin_on.src="images/nav/admin_on.gif"
//#_on = ""

home_off = new Image;
home_off.src="images/nav/home_off.gif"
help_off = new Image;
help_off.src="images/nav/help_off.gif"
messages_off = new Image;
messages_off.src="images/nav/messages_off.gif"
boards_off = new Image;
boards_off.src="images/nav/boards_off.gif"
locations_off = new Image;
locations_off.src="images/nav/locations_off.gif"
sports_off = new Image;
sports_off.src="images/nav/sports_off.gif"
events_off = new Image;
events_off.src="images/nav/events_off.gif"
news_off = new Image;
news_off.src="images/nav/news_off.gif"
league_off = new Image;
league_off.src="images/nav/league_off.gif"
team_off = new Image;
team_off.src="images/nav/team_off.gif"
player_off = new Image;
player_off.src="images/nav/player_off.gif"
admin_off = new Image;
admin_off.src="images/nav/admin_off.gif"
//#_off = ""

function roll_in(imgName) {
	// only perform function if imgName is a real value
	if (imgName != "#") document.images[imgName].src = eval(imgName + "_on.src");
}	

function roll_out(imgName) {
	// only perform function if imgName is a real value
	if (imgName != "#") document.images[imgName].src = eval(imgName + "_off.src");
}