var fbShower = {
    
    fbDiv : null,
    
    init : function(id){
        fbShower.fbDiv = $el('facebook_app');
        fbShower.fbDiv.visible = false;
        EventUtil.addEventHandler(fbShower.fbDiv, 'mouseover', fbShower.on);
        EventUtil.addEventHandler(fbShower.fbDiv, 'mouseout', fbShower.off);    
        EventUtil.addEventHandler(fbShower.fbDiv, 'click', fbShower.off);    
    },
    
    on : function(){
        if (!fbShower.fbDiv.visible){
            fbShower.fbDiv.visible = true;
            addClass(fbShower.fbDiv, 'visible');
        } else {
            fbShower.fbShower.off();
        }
    },
    
    off : function(){
        if (fbShower.fbDiv.visible){
            fbShower.fbDiv.visible = false;
            removeClass(fbShower.fbDiv, 'visible');
        }
    }
}

fbShower.init();
    
//var fbFrame = $el('facebook_app');
//EventUtil.addEventHandler(fbFrame, 'mouseout', fbShower.off);