var postCards = new Array("images/PostCard1.gif", "images/PostCard2.gif", "images/PostCard3.gif", "images/PostCard4.gif", "images/PostCard5.gif", "images/PostCard6.gif", "images/PostCard7.gif")
var thisCard = 0
var imgCt = 7

function cycle() {
	if (document.images) {
		thisCard++
		if (thisCard == imgCt) {
			thisCard = 0
		}
		document.postCard.src = postCards[thisCard]
		setTimeout("cycle()", 5 * 1000)
	}
}