var home1 = new Image(); home1.src = "images/home_cat_on.jpg";
var home2 = new Image(); home2.src = "images/home_dog_on.jpg";
var home3 = new Image(); home3.src = "images/home_cats_pkg_on.jpg";
var home4 = new Image(); home4.src = "images/home_dogs_pkg_on.jpg";
var home5 = new Image(); home5.src = "images/home_goodness_on.jpg";

function ckZip(s) {
	// Check for correct zip code
	reZip = new RegExp(/(^\d{5}$)/);
	if (!reZip.test(s)) {
		alert("Please enter a 5-digit Zip Code.");
		return false;
	}
return true;
}