var isSubmitted = false;
function updateCart() {
    document.cart_form.submit();
}
function storeLogin() {
    document.login_form.submit();
}
function continueCart() {
    var form = document.getElementById('cart_form');
    var field = document.createElement('input');
    field.setAttribute("type", "hidden");
    field.setAttribute("name", "checkout_submit");
    field.setAttribute("value", "true");
    form.appendChild(field);

    document.cart_form.submit();
}
function continuePayment() {
    document.order_form.submit();
}
function continueSummary() { 
	document.payment_form.submit();
}
function continuePurchase() {
	if (isSubmitted == false) {
		document.purchase_form.submit();
		isSubmitted = true;
	}
}
function printPage() {
    window.print();  
}
function closePage() {
    window.close();  
}
function learnMore() {
    window.open("learnmore", "newWin", "toolbar=no,menubar=no,location=no,scrollbars=yes,resizable=no,width=400,height=300");
    return;
}