var menu;

function newImage(arg) {
    rslt = new Image();
    rslt.src = arg;
    return rslt;
}

function bOver(image, event) {
    document.getElementById(image).src = eval(image +"_on.src");
    
    if (image.match("^left")) {
        bOver("main_learn", event);
        bOut("main_organize");
        bOut("main_congregation");
        menu = "";
    }
    
    if (image.match("^middle")) {
        bOver("main_organize", event);
        bOut("main_learn");
        bOut("main_congregation");
        menu = "";
    }

    if (image.match("^right")) {
        bOver("main_congregation", event);
        bOut("main_organize");
        bOut("main_learn");
        menu = "";
    }
 
}

function bOut(image, event) {
   document.getElementById(image).src = eval(image +"_off.src");
    

   if (image.match("^left")) {
        menu = 'left';
        window.setTimeout("checkmenu()",200);
    }

    if (image.match("^middle")) {
        menu = 'middle';
        window.setTimeout("checkmenu()",200);
    }

    if (image.match("^right")) {
        menu = 'right';
        window.setTimeout("checkmenu()",200);
    }

}


tell_friend_off = newImage('images/tell_friend.gif');
tell_friend_on  = newImage('images/tell_friend_on.gif');