function mostrar_thumbs(n)
{
	for(i=1;i<=11;i++)
		{
		divname='cat'+i;
		linkname='link'+i;
		if(n==i)
			{
			document.getElementById(divname).style.display='block';
			document.getElementById(linkname).style.color='red';
			}
		else
			{
			document.getElementById(divname).style.display='none';
			document.getElementById(linkname).style.color='#069';
			}
		}
}