var nW=640,nH=480,oW=200,oH=150;
function zoomToggle(iWideSmall,iHighSmall,iWideMid,iHighMid,iWideLarge,iHighLarge,whichImage)
{
   oW=whichImage.style.width;
   oH=whichImage.style.height;
   if ((oW==iWideLarge)||(oH==iHighLarge))
   {
      nW=iWideSmall;
      nH=iHighSmall;
      document.slide.msg.value="Click HERE - Big";
   }
   else if ((oW==iWideSmall)||(oH==iHighSmall)||(oW==0)||(oH==0))
   {
      nW=iWideMid;
      nH=iHighMid;
      document.slide.msg.value="Click HERE - Bigger";
   }
   else
   {
      nW=iWideLarge;
      nH=iHighLarge;
      document.slide.msg.value="Click HERE - Normal";
   }
   whichImage.style.width=nW;
   whichImage.style.height=nH;
}

var rotate_delay = 5000; // delay in milliseconds (5000 = 5 secs)
current = 0;
function next(thisSlide) {
   d=document.getElementById(thisSlide);
   if (d.slid[current+1]) {
      d.show.src = d.slid[current+1].value;
      d.slid.selectedIndex = ++current;
   }
   else first(thisSlide);
}
function previous(thisSlide) {
   d=document.getElementById(thisSlide);
   if (current-1 >= 0) {
      d.show.src = d.slid[current-1].value;
      d.slid.selectedIndex = --current;
   }
   else last(thisSlide);
}
function first(thisSlide) {
   d=document.getElementById(thisSlide);
   current = 0;
   d.show.src = d.slid[0].value;
   d.slid.selectedIndex = 0;
}
function last(thisSlide) {
   d=document.getElementById(thisSlide);
   current = d.slid.length-1;
   d.show.src = d.slid[current].value;
   d.slid.selectedIndex = current;
}
function ap(text,thisSlide) {
   d=document.getElementById(thisSlide);
   d.sbut.value = (text == "Stop") ? "Start" : "Stop";
   rotate(thisSlide);
}
function change(thisSlide) {
   d=document.getElementById(thisSlide);
   current = d.slid.selectedIndex;
   d.show.src = d.slid[current].value;
}
function rotate(thisSlide) {
   d=document.getElementById(thisSlide);
   if (d.sbut.value == "Stop") {
      current = (current == d.slid.length-1) ? 0 : current+1;
      d.show.src = d.slid[current].value;
      d.slid.selectedIndex = current;
//window.setTimeout("rotate("+thisSlide+")", rotate_delay);
   }
}