var photoURL = new Array();
var photoCaption = new Array();

function showPicture(index, showCaption) {
	document.write("<img src=\"" + photoURL[index] + "\" border=\"0\"></p>");
	if (showCaption) {
		document.write("<P class=\"caption\">" + photoCaption[index]);
	}
}

function showRandomPicture(showCaption) {
	showPicture(Math.round(Math.random() * (photoURL.length - 1)), showCaption);
}