var photos=new Array()
var which=0

// Pass in an array of pictures that need to be scrolled through.
function registerPicture(photo){
	photos[photos.length] = photo;
}

function backward(){
	if (which>0){
		window.status=''
		which--
		document.images.displayImage.src=photos[which]
	}
}

function forward(){
	if (which<photos.length-1){
		which++
		document.images.displayImage.src=photos[which];
	}
	else window.status='End';
}

function showLargeProductPicture(productId){
	var newWindow = window.open('showLargeProductPicture.do?productId='+productId,'largeProductPopup','width=600,height=650');
	newWindow.focus();
}