// sniff the browser and write a relevant style sheet tag

if ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) < 4 ))
   document.write("<LINK REL=stylesheet HREF=\"/common/ie3.css\" TYPE=\"text/css\">");
else if ((navigator.appVersion.indexOf("Mac") != -1))
   document.write("<LINK REL=stylesheet HREF=\"/common/mac.css\" TYPE=\"text/css\">");
else
   document.write("<LINK REL=stylesheet HREF=\"/common/main.css\" TYPE=\"text/css\">");

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_setTextOfLayer(objName,x,newText) { //v4.01
  if ((obj=MM_findObj(objName))!=null) with (obj)
    if (document.layers) {document.write(unescape(newText)); document.close();}
    else innerHTML = unescape(newText);
}

function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}

function swapImages(id, newSrc) {
	var	imgObj;
	if (document.images) {
		imgObj = eval("document."+id);
		imgObj.src = newSrc;
	}
}

function preload() { //v2.0
  if (document.images) {
    var imgFiles = preload.arguments;
    if (document.preloadArray==null) document.preloadArray = new Array();
    var i = document.preloadArray.length;
    with (document)
	for (var j=0; j<imgFiles.length; j++) {
      		preloadArray[i] = new Image;
      		preloadArray[i++].src = imgFiles[j];
	}
    }
}    

function changeRandomImage() {
	var filename, alreadyPreloading;

	alreadyPreloading = (preloadingRandomImage != null);

	// if an image was preloading, display it
	if (alreadyPreloading)
		swapImages("randomimage", preloadingRandomImage.src);

	// preload next random image
	filename = randomImage();
	preloadingRandomImage = new Image();
	preloadingRandomImage.src = filename;

	// if an image wasn't preloading, just display it now anyway and wait for it load
	// if (!alreadyPreloading)
		// swapImages("randomimage", preloadingRandomImage.src);

	setTimeout("changeRandomImage();", changeDelay);
} 

function randomImage() {
	var n, filename;

	n = Math.round(Math.random() * (noImages-1)) + imageNumberStart;
	filename = "pool_polenpanel/pole";
	if (n<10) filename += "0";
	filename += n.toString();
	filename += ".jpg";

	return filename;
}