var preloadFlag = false;

function preloadImages() {
	if (document.images) {
		
		buynowOff = NewImage("/images/buttons/buynow-off.gif");
		buynowOn = NewImage("/images/buttons/buynow-on.gif");
		purchaseOff = NewImage("/images/buttons/purchase-off.gif");
		purchaseOn = NewImage("/images/buttons/purchase-on.gif");
		reviewOff = NewImage("/images/buttons/review-off.gif");
		reviewOn = NewImage("/images/buttons/review-on.gif");
		readreviewOff = NewImage("/images/buttons/readReview-off.gif");
		readreviewOn = NewImage("/images/buttons/readReview-on.gif");
		mailinglistOn = NewImage("/images/buttons/mailinglist-on.gif");
		mailinglistOff = NewImage("/images/buttons/mailinglist-off.gif");
		itunesOn = NewImage("/images/buttons/itunes-on.gif");
		itunesOff = NewImage("/images/buttons/itunes-off.gif");
		
		musicImgOn = NewImage("/images/nav/on_b/music.gif");
		musicImgOff = NewImage("/images/nav/off_b/music.gif");
		journalImgOn = NewImage("/images/nav/on_b/journal.gif");
		journalImgOff = NewImage("/images/nav/off_b/journal.gif");
		kiffImgOn = NewImage("/images/nav/on_b/kiff.gif");
		kiffImgOff = NewImage("/images/nav/off_b/kiff.gif");
		contactImgOn = NewImage("/images/nav/on_b/contact.gif");
		contactImgOff = NewImage("/images/nav/off_b/contact.gif");
		photosImgOn = NewImage("/images/nav/on_b/photos.gif");
		photosImgOff = NewImage("/images/nav/off_b/photos.gif");
		showsImgOn = NewImage("/images/nav/on_b/shows.gif");
		showsImgOff = NewImage("/images/nav/off_b/shows.gif");
		friendsImgOn = NewImage("/images/nav/on_b/friends.gif");
		friendsImgOff = NewImage("/images/nav/off_b/friends.gif");
		
		pressImgOn = NewImage("/images/nav/on_b/press.gif");
		pressImgOff = NewImage("/images/nav/off_b/press.gif");
		latestImgOn = NewImage("/images/nav/on_b/latest.gif");
		latestImgOff = NewImage("/images/nav/off_b/latest.gif");
		
		buyitnowImgOn = NewImage("/images/buttons/buyitnow-on.gif");
		buyitnowImgOff = NewImage("/images/buttons/buyitnow-off.gif");
		hearthemusicImgOn = NewImage("/images/buttons/hearthemusic-on.gif");
		hearthemusicImgOff = NewImage("/images/buttons/hearthemusic-off.gif");
		
		preloadFlag = true;
	}
}

function NewImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function swapImages (anImage, theNewImage) {
	if (document.images && preloadFlag == true) {
		document.images[anImage].src = eval(theNewImage).src;
	}
}

function turnOn (anImage) {
	if (document.images && preloadFlag == true) {
		document.images[anImage].src = eval(anImage + 'On').src;
	}
}

function turnOff (anImage) {
	if (document.images && preloadFlag == true) {
		document.images[anImage].src = eval(anImage + 'Off').src;
	}
}