// --------------------------- Function CheckNav() ---------------------------
function CheckNav(){
var TypeIE="Microsoft Internet Explorer";
var TypeNN="Netscape";
   
var NavType="not known";

   NavType=navigator.appName;

if (NavType==TypeIE)
   return 1;
else if (NavType==TypeNN)
   return 2;
else
   return 0;
}

// --------------------------- Function CheckMac() ---------------------------
function CheckMac(){
var TypeIE="Microsoft Internet Explorer";
var PlatMac="MacPPC";
var Rev4="4.0";
   
var NavType="not known";
var NavRev="not known";
var NavPlat="not known";

   NavType=navigator.appName;
   NavPlat=navigator.platform;
   NavRev=navigator.appVersion;
   NavRev=NavRev.substr(0,3);

if (NavPlat==PlatMac && NavType==TypeIE && NavRev==Rev4)
   return 1;
else 
   return 0;
}

// --------------------------- Function ExtendText() -----------------------
function ExtendText(){ 
var vert=0;
var marg=0;
var rep=0;
 
var nav=CheckNav();
var atHome=CheckMac();

   window.scrollTo(0,550);

if (nav==1)
   vert=document.body.scrollTop;
else if (nav==2)
   vert=window.pageYOffset;

   if ( vert<=20) {
      window.scrollTo(0,0);
      return; }

   marg=0;
   if (atHome)
      marg = vert/10;		// only for AppleMac

   window.resizeBy(0,vert-marg);

   if ( vert>=500)
      window.moveTo(150,0);

   if ( vert>=550) {
      window.scrollTo(0,0);
      return; }

      return;

//   alert ("VERT = "+vert);

// ------------------ perhaps NOT ??? ---------------------
if (nav==1)
   while (document.body.scrollTop && rep<5)
   {  window.resizeBy(0,10);
      rep+=1;
   }
else if (nav==2)
   while (window.pageYOffset && rep<5)
   {  window.resizeBy(0,10);
      rep+=1;
   }

}

// --------------------------- Function ExtendPic() ------------------------
function ExtendPic(){ 
var vert=0;
var horz=0;
var nav=CheckNav();

   window.scrollTo(100,100);

// if (nav==0) {
//   alert("Please re-size window to suit picture dimensions");
//   return; }
if (nav==1) {
   vert=document.body.scrollTop;
   horz=document.body.scrollLeft; }
else if (nav==2) {
   vert=window.pageYOffset;
   horz=window.pageXOffset; }

   window.resizeBy(horz,vert-10);

if (nav==1) {
   while (document.body.scrollTop && document.body.scrollLeft)
      window.resizeBy(10,10);
   while (document.body.scrollTop)
      window.resizeBy(0,10);
   while (document.body.scrollLeft)
      window.resizeBy(10,0); 		}
else if (nav==2) {
   while (window.pageXOffset && window.pageYOffset)
      window.resizeBy(10,10);
//   while (window.pageYOffset)
//        window.resizeBy(0,10);
   while (window.pageXOffset)
      window.resizeBy(10,0);		}

}