function high(which){
theobject=which
highlighting=setInterval("highlightit(theobject)",50)
}
function low(which){
clearInterval(highlighting)
which.filters.alpha.opacity=50
}
function highlightit(cur){
if (cur.filters.alpha.opacity<100)
cur.filters.alpha.opacity+=10
else if (window.highlighting)
clearInterval(highlighting)
}
<!--
function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}