addLoadEvent(initTableReadability);

function initTableReadability() {
	if (!document.getElementById("purchasing")) return false;
	var table = document.getElementById("purchasing");
	var rows = table.getElementsByTagName("tr");
	var stripe = false;
	for (var i = 1; i < rows.length; i++) {
		if (stripe) {
			addClass(rows[i], "stripe");
		}
		stripe = !stripe;
		rows[i].onmouseover = rows[i].onmouseout = toggleColor;
	}
}

function toggleColor() {
	if (!hasClass(this, "hover")) {
		addClass(this, "hover");
	} else {
		removeClass(this, "hover");
	}
}