function bookmarks(title,url){
	if (document.all)
	{
		window.external.AddFavorite(url,title);
	}
	else if(window.sidebar)
	{
		window.sidebar.addPanel(title,url,"");
	}
}

function show_ren(e)
{
	for(var i=1;i<=10;i++)
	{
		document.getElementById("ren"+i).style.display = "none";	
	}
	document.getElementById("ren"+e).style.display = "block";	
}