function showGalleryItem(container,index,thumbnail,item,itemClass,selectedClass)
{
	var c = xGetElementById(container);
	if(c.getElementsByTagName)
	{
		var list = c.getElementsByTagName('div');
		for( var i=0; i<list.length; i++ )
			removeClassName(list[i],selectedClass);
	}

	var h = xGetElementById(container+"_Selected");
	if(h)h.value=index;

	addClassName(thumbnail,selectedClass);
	addClassName(item,selectedClass);
}