function makevisible(cur,which)
{
	if (which==0)
	{
		cur.style.filter="alpha(opacity=70)";
		cur.style.opacity=0.7;
		cur.style.MozOpacity=0.7;
		cur.style.KhtmlOpacity=0.7;
	}
	else
	{
		cur.style.filter="alpha(opacity=100)";
		cur.style.opacity=1;
		cur.style.MozOpacity=1;
		cur.style.KhtmlOpacity=1;
	}
}