Hi guys first time poster but a fairly long customer. I have had no luck in finding out how to do this but I want to be able to create a form that will automatically generate a price for a paypal subscription. When selling game servers there is a lot of variables for customers to choose from giving almost every customer a different price, if I were to make every subscription separately there could literally be over a thousand. https://www.gameservers.com/order/step2.php?game=24&type=public&players=10 is a good example of what I would want to accomplish. I looked through the paypal documentation and found out how to create a custom button through code, but I am afraid I don't have enough knowledge of creating forms for it to input variables that the customer selects. Any help would be much appreciated. Below is an example of the code you use to create a button.
<form action="http://www.paypal.com/cgi-bin/webscr" method="post" onsubmit="lm_paypal_setbiz(this,'sales','gamingdoneright.com')">
<input type="hidden" name="cmd" value="_xclick-subscriptions">
<input type="hidden" name="business" value="">
<input type="hidden" name="notify_url" value="http://gamingdoneright.com/main/?q=lm_paypal/ipn">
<input type="hidden" name="item_name" value="Counter Strike:Source 10 Slot Quarterly">
<input type="hidden" name="item_number" value="5">
<input type="hidden" name="no_shipping" value="1">
<input type="hidden" name="return" value="http://gamingdoneright.com/main/?q=/lm_paypal/subscriptions_inprogress">'>http://gamingdoneright.com/main/?q=/lm_paypal/subscriptions_inprogress">
<input type="hidden" name="cancel_return" value="http://gamingdoneright.com/main/?q=/lm_paypal/subscriptions_inprogress">
<input type="hidden" name="currency_code" value="USD">
<input type="hidden" name="a3" value="57.00">
<input type="hidden" name="p3" value="3">
<input type="hidden" name="t3" value="M">
<input type="hidden" name="src" value="1">
<input type="hidden" name="sra" value="1">
<input type="hidden" name="no_note" value="1">
<input type="hidden" name="custom" value="1">
<input type="hidden" name="usr_manage" value="0">
<input type="image" src="http://images.paypal.com/images/x-click-butcc-subscribe.gif" border="0" name="submit" alt="Make payments with PayPal - it's fast, free and secure!">
</form>