// link style change
var cur_link;
function doLinkClass(lnk) {
  if (lnk && lnk.blur) lnk.blur();	// remove marquee
  if (!lnk || cur_link == lnk) return;
  if (cur_link) cur_link.className = "done";
  lnk.className = "on";
  cur_link = lnk;
}

var cur_lyr;	// holds id of currently visible layer
function swapLayers(lnk,id) {
  doLinkClass(lnk);
  if (cur_lyr) hideLayer(cur_lyr);
  showLayer(id);
  cur_lyr = id;
}

function init(id,lyr) {
  var lnk = getElemRefs(id);
  swapLayers(lnk,lyr);
}



var baseopacity=55

function slowhigh(which2){
imgobj=which2
browserdetect=which2.filters? "ie" : typeof which2.style.MozOpacity=="string"? "mozilla" : ""
instantset(baseopacity)
highlighting=setInterval("gradualfade(imgobj)",50)
}

function slowlow(which2){
cleartimer()
instantset(baseopacity)
}

function instantset(degree){
if (browserdetect=="mozilla")
imgobj.style.MozOpacity=degree/100
else if (browserdetect=="ie")
imgobj.filters.alpha.opacity=degree
}

function cleartimer(){
if (window.highlighting) clearInterval(highlighting)
}

function gradualfade(cur2){
if (browserdetect=="mozilla" && cur2.style.MozOpacity<1)
cur2.style.MozOpacity=Math.min(parseFloat(cur2.style.MozOpacity)+0.1, 0.99)
else if (browserdetect=="ie" && cur2.filters.alpha.opacity<100)
cur2.filters.alpha.opacity+=10
else if (window.highlighting)
clearInterval(highlighting)
}