browser_name = navigator.appName;
browser_version = parseFloat(navigator.appVersion);
if (browser_name == "Netscape" && browser_version >= 3.0){ 	
	rollover = 'true'; }
else if (browser_name == "Microsoft Internet Explorer" && browser_version >= 4.0){ 	
	rollover = 'true'; }
else if (browser_name.indexOf('Mozilla') != -1){ 	
	rollover = 'true'; }
else if (browser_name.indexOf('Opera') != -1){
	rollover = 'true'; }
else { rollover = 'false'; }
/* preloads the number - pictures, even number is the active one, odd number the normal (grey) */
/* parameter pictureCount - number of pictures*/
function preloadNumbers (pictureCount){
/*alert(pictureCount);       */
	var picCount = parseInt(pictureCount); //Zahl draus machen
	numbers = new Array (picCount*2); //Array mit der richtigen Laenge
	for (i = 0; i < (picCount*2);i= i+2){
		var currentPic = (i/2)+1;
		/*alert(currentPic + "  " + i); */
		numbers[i] = new Image();
		numbers[i].src="../../../../../images/armin/tbImgNavNum"+currentPic+"Active.gif";
		numbers[i+1] = new Image();
		numbers[i+1].src="../../../../../images/armin/tbImgNavNum"+currentPic+"Norm.gif";
	}
}
/* preloads the pictures to display. */
/* parameter pictureLocations - array, which contains the paths to the pictures. */
function preloadImagesArray (pictureLocations){
	pictures = new Array (pictureLocations.length);
	for (i = 0; i < pictures.length; i++){
          pictures[i] = new Image();
          /* Martin Vanauer, Berliner Flughäfen, Webteam */
          pictures[i].src = pictureLocations[i];
	}
}
function setActivePicture (currentActivePicture){
	for (i = 0; i < pictures.length; i++){
		/*alert("counting "+i); */
		if (i+1 == currentActivePicture){
              if (rollover == 'true') {
              		var count = i;    //falls man es bei Erweiterungen mal brauchen sollte
              		var iplus = 1+i;  //dito --
              		/*alert('imgChange'+(iplus)+'a'); */
				document.images['imgChange'+(iplus)].src = numbers[(count*2)].src;
		    		document.images['tbImgChange'].src = pictures[i].src;
              }
              else {}
  		}
		else {
			var count = i;
              	var iplus = 1+i;
			/*alert('imgChange'+(iplus) + "  " + ((i*2)+1));  */
			document.images['imgChange'+(iplus)].src = numbers[((count*2)+1)].src;
		}
	}
}