function fadeheader(fadeTime,imageDir,imageSrcString,imgNumber) {
	
	var imageSrcArray = new Array();
	imageSrcArray = imageSrcString.split(",");
	imageSrcOld = imageDir + imageSrcArray[imgNumber];
	
	$.timer(fadeTime, function (timer) {
		do {
			imgNumber = Math.floor(Math.random() * imageSrcArray.length);
			imageSrc = imageDir + imageSrcArray[imgNumber];
		} while (imageSrcOld == imageSrc)
		imageSrcOld = imageSrc;
		$('#header img').attr('src',imageSrc);
		timer.reset(fadeTime);
	});
}