function showPopup(myWidth, myHeight, myTitle, myContent) {
    Shadowbox.open({
        content:    '<div style="width:100%;height:100%;background-color:white">'+ myContent +'</div>',
        player:     "html",
        title:      myTitle,
        height:     myHeight,
        width:      myWidth
    });
}

function closePopup() {
	Shadowbox.close();
}