javascript validation ignored upon reentering page

[chet139]

Hi,

 

I have a bit of javascript which does what its suppose to do just fine. See below:

function checkolineFields() //validation
	{
		if(oline.id.value.length >=1 && oline.qty.value.length >=1) 
		{
			return true;
		}


		else 
		{
		alert("Please provide the required data");
		return false;
		}
	}

 

However upon submitting something to another page (adding something to a cart) - and then coming back to the page with the validation, the validation check no longer works. Here the other bit of code thats probably related:

 

echo'

<form name="oline" action="cart.php" onsubmit="return checkolineFields(this)" method="get">
	<input type="hidden" name="action" value="add_item" />
	<b>Product ID:</b> <br/><input type="text" name="id" size="9" maxlength="9" onKeyPress="return numbersonly(this, event)"  /><br/> 
	<b>Quantity:</b> <br/>
	<input type="text" name="qty" value="1" size="4" maxlength="4" onKeyPress="return numbersonly(this, event)" /><br/>
	<input type="hidden" name="orderId" value=" '. $orderId . '" />
	<br/>
	<input type="submit" value="Add to Order" />
</form>

 

any ideas why it stops working after when it works the first time round before anything is added to cart.