// ======================================================================
// 		ONDERSTAANDE STUK VERANDERE NAAR EIGEN KEUZE
// ======================================================================

// gSlideshowInterval: bepaalt hoe snel de slideshow weord ververst
// Eenheid is in seconden

gSlideshowInterval = 1;

// gNumberOfImages - Het totaal aantal beelden die beschikbaar zijn.

gNumberOfImages = 40;

gImages = new Array(gNumberOfImages);

gImages[0] = "slide_tn/slide_gff_01.jpg";
gImages[1] = "slide_tn/slide_gff_02.jpg";
gImages[2] = "slide_tn/slide_gff_03.jpg";
gImages[3] = "slide_tn/slide_gff_04.jpg";
gImages[4] = "slide_tn/slide_gff_05.jpg";
gImages[5] = "slide_tn/slide_gff_06.jpg";
gImages[6] = "slide_tn/slide_gff_07.jpg";
gImages[7] = "slide_tn/slide_gff_08.jpg";
gImages[8] = "slide_tn/slide_gff_09.jpg";
gImages[9] = "slide_tn/slide_gff_10.jpg";
gImages[10] = "slide_tn/slide_gff_11.jpg";
gImages[11] = "slide_tn/slide_gff_12.jpg";
gImages[12] = "slide_tn/slide_gff_13.jpg";
gImages[13] = "slide_tn/slide_gff_14.jpg";
gImages[14] = "slide_tn/slide_gff_15.jpg";
gImages[15] = "slide_tn/slide_gff_16.jpg";
gImages[16] = "slide_tn/slide_gff_17.jpg";
gImages[17] = "slide_tn/slide_gff_18.jpg";
gImages[18] = "slide_tn/slide_gff_19.jpg";
gImages[19] = "slide_tn/slide_gff_20.jpg";
gImages[20] = "slide_tn/slide_gff_21.jpg";
gImages[21] = "slide_tn/slide_gff_22.jpg";
gImages[22] = "slide_tn/slide_gff_23.jpg";
gImages[23] = "slide_tn/slide_gff_24.jpg";
gImages[24] = "slide_tn/slide_gff_25.jpg";
gImages[25] = "slide_tn/slide_gff_26.jpg";
gImages[26] = "slide_tn/slide_gff_27.jpg";
gImages[27] = "slide_tn/slide_gff_28.jpg";
gImages[28] = "slide_tn/slide_gff_29.jpg";
gImages[29] = "slide_tn/slide_gff_30.jpg";
gImages[30] = "slide_tn/slide_gff_31.jpg";
gImages[31] = "slide_tn/slide_gff_32.jpg";
gImages[32] = "slide_tn/slide_gff_33.jpg";
gImages[33] = "slide_tn/slide_gff_34.jpg";
gImages[34] = "slide_tn/slide_gff_35.jpg";
gImages[35] = "slide_tn/slide_gff_36.jpg";
gImages[36] = "slide_tn/slide_gff_37.jpg";
gImages[37] = "slide_tn/slide_gff_38.jpg";
gImages[38] = "slide_tn/slide_gff_39.jpg";
gImages[39] = "slide_tn/slide_gff_40.jpg";

// ======================================================================
// 							DON'T CHANGE THIS PART
// ======================================================================

// canManipulateImages - check if the browser we're using can do
// clever stuff with document images.

function canManipulateImages() {
	if (document.images)
		return true;
	else
		return false;
}

// loadSlide
//
// Load a given image into place by substituting its URL for the URL 
// currently loaded by the <IMG> object called 'slide'. 


function loadSlide(imageURL) {
	if (gImageCapableBrowser) {
		document.slide.src = imageURL;
		return false;
	}
	else {
		return true;
	}
}

// nextSlide
//
// Update the counter that shows which slide is being displayed, and
// load it into place. The modulo (%) is there to ensure that we roll
// over when we reach the end of the slideshow.

function nextSlide() {
	while(true) {
		gNextImage = pickRandom(gNumberOfImages);
		if (gNextImage != gCurrentImage)
			break;
	}
	gCurrentImage = gNextImage;
	loadSlide(gImages[gCurrentImage]);
}

// pickRandom
//
// Return a random number in a given range (it returns a number
// between 0 and (range - 1). If 'Math.random' isn't implemented in
// this version of JavaScript, return a value faked up from the
// current time.

function pickRandom(range) {
	if (Math.random)
		return Math.round(Math.random() * (range-1));
	else {
		var now = new Date();
		return (now.getTime() / 1000) % range;
	}
}

// gImageCapableBrowser - is this browser hip to images? Set up
// a global variable so that we don't have to keep calling a function
// (useful if the function becomes costly to compute).

gImageCapableBrowser = canManipulateImages();

// gCurrentImage - a variable used to keep track of the image
// currently being displayed to the user.

gCurrentImage = 0;

// Set up the timer. This will call the 'nextSlide()' function repeatedly at 
// the specified interval (and will continue to do so until the page is unloaded).

setInterval("nextSlide()",gSlideshowInterval * 1000);

// -->