var imageList = new Array(
	"context_button_first.gif",
	"context_button_middle.gif",
	"context_button_last.gif",
	"lightbox/prev.gif",
	"lightbox/next.gif",
	"lightbox/close.gif",
	"lightbox/loading.gif"
);

function preload() {
	for(i=0; i<imageList.length; i++) {
		image = new Image();
		image.src = imageDir + "/" + imageList[i];
	}
}