function addQty(sRowNum){
	changeAmount(sRowNum, 1);
}

function removeQty(sRowNum){
	changeAmount(sRowNum, -1);
}

function changeAmount(sRowNum, iAmount){
	var qty = document.getElementById("tbQuantity" + sRowNum);
	var amt = getNumber(qty.value);
	if (isNaN(amt))
	{
		amt = 0;
	}
	qty.value = amt + iAmount;
	valudateAmount(qty);
}

function qtyChange(e){
	valudateAmount(getSrcObj(e));
}

function statusChange(e){
	var Order_Status = getSrcObj(e).value;
	var Order_ID = getSrcObj(e).getAttribute("Order_ID");
	document.getElementById("frmUpdate").src = "Order_Update.php?Order_ID=" + Order_ID + "&Order_Status=" + Order_Status;
}

function saveTrackingNumber(e){
	var Tracking_Nuber = getSrcObj(e).value;
	var Order_ID = getSrcObj(e).getAttribute("Order_ID");
	document.getElementById("frmUpdate").src = "Order_Update.php?Order_ID=" + Order_ID + "&Tracking_Nuber=" + Check_Query_Value(Tracking_Nuber);
}
function valudateAmount(qty){
	var amt = getNumber(qty.value);
	if (isNaN(amt))
	{
		amt = 0;
	}
	if (amt < 0)
	{
		amt = 0;
	}
	else if (amt > 50)
	{
		amt = 50;
	}
	qty.value = amt;
	var Product_ID = qty.getAttribute("Product_ID");
	document.getElementById("frmUpdate").src = "Product_Update.php?Product_ID=" + Product_ID + "&Quantity=" + amt;
}

function freightClick(e)
{
	freightChange(getSrcObj(e));
}

function freightChange(obj)
{
	var amt1 = getNumber(document.getElementById("lblAmount").innerHTML);
	var amt2 = getNumber(obj.getAttribute("Amount"));
	if (isNaN(amt1)) { amt1 = 0; }
	if (isNaN(amt2)) { amt2 = 0; }
	if (obj.getAttribute("Amount") == "")
	{
		document.getElementById("tAddress").className = "hide";
	}
	else
	{
		document.getElementById("tAddress").className = "";
	}
	document.getElementById("lblTotal").innerHTML = round_decimals(amt1 + amt2, 2);
}

var imgBig;
function Show_Image(e){
	if (imgBig == null)
	{
		imgBig = document.createElement("img");
		document.body.appendChild(imgBig);
		imgBig.style.position = "absolute";
		imgBig.style.zIndex = "9999";
		imgBig.title = "Click here to close";
		addCustomEvent(imgBig, "click", Hide_Image);
	}
	var img = getSrcObj(e);
	imgBig.src = img.src;
	imgBig.style.top = (findPosY(img) - 50) + "px";
	imgBig.style.left = findPosX(img) + "px";
	imgBig.className = "";
}

function Hide_Image(){
	if (imgBig != null)
	{
		imgBig.className = "hide";
	}
}