window.addEvent('domready', function() {			
    setTimeout('header_image()',3000);
});

var current_header_image=0;
var current_header_image_timeout=3;
var current_header_image_timeout_count=current_header_image_timeout;
var current_header_image_stop=false;

function header_image() {
    if (current_header_image_timeout_count==current_header_image_timeout) {
        current_header_image_timeout_count=0;
        if (!current_header_image_stop) {
            var next=current_header_image+1;
            if (!$('header_image_'+next)) next=0;
        
            header_image_show(next);
        }
    }
    current_header_image_timeout_count++;
    setTimeout('header_image()',1500);
}

function header_image_stop() {
    current_header_image_stop=true;
}

function header_image_reset() {
    current_header_image=0;
    $('header_image').innerHTML='';
}

function header_image_start() {
    current_header_image_stop=false;
}

function header_image_show(id) {
    if ($('header_image_'+current_header_image)) $('header_image_'+current_header_image).fade('out');
    current_header_image=id;
    current_header_image_timeout_count=0;
    $('header_image_'+current_header_image).fade('in');
}