function setPreviewImage(imageID) {
	var photoGalleryPreviewImage = window.document.getElementById("photoGalleryPreviewImage");
	if(photoGalleryPreviewImage) {
		photoGalleryPreviewImage.style.background = "url('../app/cmsFile.php?disposition=i&imageSize=550&ID=" + imageID + "') center no-repeat";
	}
}

var doScrollCycle = false;
var photoGalleryScrollTimeout = null;
function photoGalleryThumScroll(scrollDirection) {
	var photoGalleryThumbScroller = window.document.getElementById("photoGalleryThumbScroller");
	if(photoGalleryThumbScroller) {
		doScrollCycle = true;
		photoGalleryScrollCycle(scrollDirection);
	}
}

function photoGalleryScrollCycle(scrollDirection) {
	if(doScrollCycle == true) {
		window.clearTimeout(photoGalleryScrollTimeout);
		var photoGalleryThumbScroller = window.document.getElementById("photoGalleryThumbScroller");
		if(photoGalleryThumbScroller) {
			if(scrollDirection == "R") {
				photoGalleryThumbScroller.scrollLeft = photoGalleryThumbScroller.scrollLeft + 1;
			} else {
				photoGalleryThumbScroller.scrollLeft = photoGalleryThumbScroller.scrollLeft - 1;
			}
			
			if(scrollDirection == "R") {
				photoGalleryScrollTimeout = window.setTimeout("photoGalleryScrollCycle('R')", 20);
			} else {
				photoGalleryScrollTimeout = window.setTimeout("photoGalleryScrollCycle('L')", 20);
			}
		}
	}
}

function photoGalleryStopScrollCycle() {
	doScrollCycle = false;
}