var menu_buttons = new Array('home', 'community', 'games', 'soultest', 'graphics', 'forum', 'chat');
var menu_buttons_base_src = "//static.glig.com/images/main/buttons/";

var buttons_on = new Array();
var buttons_off = new Array();

if(document.images)
{
    for(i = 0; i< menu_buttons.length; i++)
    {
        label = menu_buttons[i];

        buttons_on[label] = new Image;
        buttons_on[label].src = menu_buttons_base_src + label + "_sl.png";
        buttons_off[label] = new Image;
        buttons_off[label].src = menu_buttons_base_src + label + ".png";
   }
}

function button_on(label)
{
    ob = document.getElementById("menu_button_" + label);

    if(ob)
        ob.src = buttons_on[label].src;
}

function button_off(label)
{
    ob = document.getElementById("menu_button_" + label);

    if(ob)
        ob.src = buttons_off[label].src;
}