if (document.images) {
    char1up       = new Image();
    char1up.src   = "images/char1.gif";
    char1down     = new Image();
    char1down.src = "images/char1on.gif";

    char2up       = new Image();
    char2up.src   = "images/char2.gif";
    char2down     = new Image();
    char2down.src = "images/char2on.gif";
	
	char3up       = new Image();
    char3up.src   = "images/char3.gif";
    char3down     = new Image();
    char3down.src = "images/char3on.gif";
	
	char4up       = new Image();
    char4up.src   = "images/char4.gif";
    char4down     = new Image();
    char4down.src = "images/char4on.gif";
	
	char5up       = new Image();
    char5up.src   = "images/char5.gif";
    char5down     = new Image();
    char5down.src = "images/char5on.gif";
	
	charactersup       = new Image();
    charactersup.src   = "images/characters_topnav.png";
    charactersdown     = new Image();
    charactersdown.src = "images/characters_topnav_on.png";
	
	episodesup       = new Image();
    episodesup.src   = "images/episodes_topnav.png";
    episodesdown     = new Image();
    episodesdown.src = "images/episodes_topnav_on.png";
	
	fanlabup       = new Image();
    fanlabup.src   = "images/fanlab_topnav.png";
    fanlabdown     = new Image();
    fanlabdown.src = "images/fanlab_topnav_on.png";
	
	
	gamesup       = new Image();
    gamesup.src   = "images/games_topnav.png";
    gamesdown     = new Image();
    gamesdown.src = "images/games_topnav_on.png";
	
	shopup       = new Image();
    shopup.src   = "images/shop_topnav.png";
    shopdown     = new Image();
    shopdown.src = "images/shop_topnav_on.png";
}


function buttondown( buttonname )
{
    if (document.images) {
      document[ buttonname ].src = eval( buttonname + "down.src" );
    }
}
function buttonup ( buttonname )
{
    if (document.images) {
      document[ buttonname ].src = eval( buttonname + "up.src" );
    }
}