function high(sat){
theobject=sat
highlighting=setInterval("highlightit(theobject)",200)
}
function low(sat){
clearInterval(highlighting)
sat.filters.alpha.opacity=25
}
function highlightit(sat2){
if (sat2.filters.alpha.opacity<100)
sat2.filters.alpha.opacity+=7
else if (window.highlighting)
clearInterval(highlighting)
}