function bg(el){
	el.className = 'item-gallery-active';
}

function rebg(el){
	el.className = 'item-gallery';
}				

function callExternalInterface() {
    thisMovie("artzoowoof").goHome();
}

function thisMovie(movieName) {
    if (navigator.appName.indexOf("Microsoft") != -1) {
        return window[movieName]
    }
    else {
        return document[movieName]
    }
}