// JavaScript Document
gSlideshowInterval = 2;
gNumberOfImages = 5;
gImages = new Array(gNumberOfImages);

gImages[0] = "images/podlista.jpg";
gImages[1] = "images/scanner.jpg";
gImages[2] = "images/blinder.jpg";
gImages[3] = "images/scena.jpg";
gImages[4] = "images/simple.jpg";




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

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


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

gImageCapableBrowser = canManipulateImages();
gCurrentImage = 0;
setInterval("nextSlide()",gSlideshowInterval * 1000);