var winw, posleft, pagehd=document.getElementById("idpagehd"), preloadimgs = new Array(), showstart = true, showtime;
var imgs = new Array("slides/airport.jpg", "slides/island.jpg", "slides/plane.jpg", "slides/terminal.jpg", "slides/waves.jpg", "slides/woman.jpg"), 
showd=document.getElementById("idhdgshow"), n = Math.floor(Math.random() * imgs.length);

set_pos();

function set_pos()
{
  winw = document.body.clientWidth;
  if (winw > 800)
    posleft =  (winw - 800)/2;
  else
    posleft = 0;
  pagehd.style.left=posleft + 220 + "px";
  pagehd.style.visibility = 'visible';
}

if (!ie)
{
document.write('<div><img id="idhdgshowfg" src="images/spacer.gif" width="593" height="175" alt="' + pagedesc + '" title="' + pagedesc + '"></div><div><img id="idhdgshown" src="images/spacer.gif" width="593" height="175"  alt="' + pagedesc + '" title="' + pagedesc + '"></div>');
var showfgd=document.getElementById("idhdgshowfg"), shownd=document.getElementById("idhdgshown");
}
if (nn)
{
document.write('<div><img id="idhdgshownn" src="images/spacer.gif" width="593" height="175" alt="' + pagedesc + '" title="' + pagedesc + '"></div>');
var shownnd=document.getElementById("idhdgshownn");
}

preloadshow();
if (!ie)
{
   showd.style.visibility = 'hidden';
   set_poshow();
}

function set_poshow()
{
   if (!nn)
   {
      showfgd.style.left = posleft + 204 + "px";
      shownd.style.left = posleft + 204 + "px";
   }
   else
   {
      showfgd.style.left = posleft + 203 + "px";
      shownd.style.left = posleft + 203 + "px";
      shownnd.style.left = posleft + 203 + "px";
      shownnd.style.visibility = 'visible';
   }
   showfgd.style.visibility = 'visible';
   shownd.style.visibility = 'visible';
}

function set_poshowre()
{
   set_pos();
   if (!ie)
       set_poshow();   
}

function preloadshow()
{
  for (var i = n; i < imgs.length; i++)
  {
    preloadimgs[i] = new Image();
    preloadimgs[i].src = imgs[i];
  }
  if (ie)
     showd.src= preloadimgs[n].src;
  else
     showfgd.src= preloadimgs[n].src;
  if (nn)
     shownnd.src= preloadimgs[n].src;
  for (var i = 0; i < n; i++)
  {
    preloadimgs[i] = new Image();
    preloadimgs[i].src = imgs[i];
  }
showpics(1, 6000, 6000, 15, .066, 10, .1);
}

function dim(id)
{
	var objd = document.getElementById(id);
	opvalobj = 7;
	objd.style.opacity = opvalobj/10;                               // Mozilla
	objd.style.filter = 'alpha(opacity=' + opvalobj*10 + ')';   // IE
}

function undim(id)
{
	var objd = document.getElementById(id);
	opvalobj = 10;
	objd.style.opacity = opvalobj/10;                               // Mozilla
	objd.style.filter = 'alpha(opacity=' + opvalobj*10 + ')';   // IE
}