function addHoverEffect(id, language, clickurl) {
    var el = $(id);
    
    if($defined(el)) {
        var path = "/wp-content/themes/laura/gfx/";
        $(el).addEvent('mouseover', function(){
            changeImage($(el), "url("+path+id+"_"+language+".png)" );
    });
        $(el).addEvent('mouseout', function() { changeImage($(el), "none") });
    }

}

function changeImage(el, newImage) {

if($defined(el)) {    
    el.style.backgroundImage = newImage;
}
}