function incQty(id) {
	el = document.getElementById("qty"+id);
	el.value++;
	setChanged(el);
	el.focus();
}

function decQty(id) {
	el = document.getElementById("qty"+id);
	if(el.value > 1) {
		el.value--;
		setChanged(el);
	}
	el.focus();
}

function setChanged(elem) {
	elem.style.border = "2px solid #BB0202";
	sc = document.getElementById("submitChanges");
	sc.style.border = "1px solid #BB0202";
	sc.style.color = "#BB0202";
	sc.changes = true;
}

function checkStatus() {
	sc = document.getElementById("submitChanges");
	if(sc.changes) {
		alert("Nie zatwierdziłeś/aś zmiany ilości zamawianego towaru.\nAby to uczynić kliknij \"Uaktualnij koszyk\"");
		document.getElementById("nextStep").href = "#";
	} else return;
}

function updatePrice(id, price) {
	el = document.getElementById("qty"+id);
	document.getElementById("price"+id).value = el.value * price;
	setTotalPrice();
}

function setTotalPrice() {
	var total = 0;
	for (var i = 0; i < document.forms.basket.length; i++) {
		var fieldType = document.forms.basket[i].id;
		if(fieldType.substr(0,5) == "price") total += parseInt(document.forms.basket[i].value);
	}
	document.forms.basket.totalPrice.value = total;
}

function dailyOfferToggle(dateVal) {
	var chbox = document.getElementById("dailyOfferChBox");
	var dailyOffText = document.getElementById("dailyOffer");
	if(!dateVal.length) dateVal = getToday();
	if(chbox.checked) {
		dailyOffText.disabled = false;
		dailyOffText.value = dateVal;
	} else {
		dailyOffText.disabled = true;
		dailyOffText.value = "";
	}
}

function getToday() {
	var Today = new Date();
	var Month = Today.getMonth()+1;
	var Day = Today.getDate();
	var Year = Today.getFullYear();
	if(Month < 10) Month = "0"+Month;
	if(Day < 10) Day = "0"+Day;
	return Year+"-"+Month+"-"+Day;
}