/**
 * Update header with cart items
 */
function updateHeaderCartSummary() {
	var element;
	var items;
	var output;
	
	element = document.getElementById('view_cart_text_right');
	
	if(element == null) {
		return;
	}
	
	items = getShoppingCartItems();
	total = getShoppingCartTotal();
	
	//No items or null
	if(isShoppingCartEmpty()) {
		output = 'Items in your Cart: 0<br />Current Subtotal: $0.00';
	}
	else if (items == null || total == null) {
		return;
	}
	else if(items == 0) {
		output = 'Items in your Cart: 0<br />Current Subtotal: $0.00';
	}
	else {
		//Create string
		output = 'Items in your Cart: ' + items + '<br />Current Subtotal: ' + total;
	}
	
	//Put data into field
	element.innerHTML = output;
}