function GallerySelectionListener() {
    this.classname="GallerySelectionListener";
}
GallerySelectionListener.prototype.selectionChanged = function(item) {
    document.getElementById("display").src=item.item.icon;
    var remark = document.getElementById("remark");
    while (remark.childNodes.length>0) {
	remark.removeChild(remark.firstChild);
    }
    if (item.item.info!=null) {
	var text = document.createTextNode(item.item.info);
	remark.appendChild(text);
    }
    //selection.remove(item.item);
}