function PackType(i) {
	for (var j = 0; j < 2; j++) {
		if (document.movingSelf.packType[j].checked == true) {
			document.getElementById("canvasSize" + (j+1)).disabled = false;
		}
		else {
			document.getElementById("canvasSize" + (j+1)).disabled = true;
		}
	}
}


function ExtraQuantity(itemID,canvasExist) {
	var extra = "extra" + itemID;
	var extraQuantity = "extra" + itemID + "Quantity";
	if (document.getElementById(extra).checked == true) {
		document.getElementById(extraQuantity).disabled = false;
		if (canvasExist == "true")
			document.getElementById("canvasSize3").disabled = false;
	}
	else {
		document.getElementById(extraQuantity).disabled = true;
		if (canvasExist == "true")
			document.getElementById("canvasSize3").disabled = true;
	}
}