function checkout() {

	 var ONLINE = document.PAGA_ADESSO.ONLINE.value;

	 

     if (ONLINE == "X"){

		    document.getElementById('paypal').style.visibility='visible';

			document.getElementById('pagamenti').style.visibility='hidden';

			document.getElementById('paypal').style.height='auto';

			document.getElementById('pagamenti').style.height='0'

			}

			else{

			document.PAYPAL.submit();

			}			

     }