function doAmount1() {
document.getElementById('finalamount').value=document.getElementById('amt1').value;
}

function doAmount2() {
document.getElementById('finalamount').value=document.getElementById('amt2').value;
}

function doAmount3() {
document.getElementById('finalamount').value=document.getElementById('amt3').value;
}

function doAmount4() {
document.getElementById('finalamount').value=document.getElementById('amt4').value;
}

function doNPMenu2() {
document.getElementById('finalNP').value=document.getElementById('NP2').value;
}

function doNPMenu3() {
document.getElementById('finalNP').value=document.getElementById('NP3').value;
}

function doNPMenu4() {
document.getElementById('finalNP').value=document.getElementById('NP4').value;
}

function doMenu() {
if (document.getElementById('myperiod').value == "O") {
   document.getElementById('whichpaypal').value='_donations';
   document.getElementById('period').value='M';
   document.getElementById('recurrent').value='';
   document.getElementById('numperiods').value='1';
   document.getElementById('numpayments2').style.display='none';
   document.getElementById('numpayments3').style.display='none';
   document.getElementById('numpayments4').style.display='none';
   document.getElementById('amount1').style.display='block';
   document.getElementById('amount2').style.display='none';
   document.getElementById('amount3').style.display='none';
   document.getElementById('amount4').style.display='none';
   }
if (document.getElementById('myperiod').value == "M") {
   document.getElementById('whichpaypal').value='_xclick-subscriptions';
   document.getElementById('period').value='M';
   document.getElementById('recurrent').value='1';
   document.getElementById('numperiods').value='1';
   document.getElementById('numpayments2').style.display='block';
   document.getElementById('numpayments3').style.display='none';
   document.getElementById('numpayments4').style.display='none';
   document.getElementById('amount1').style.display='none';
   document.getElementById('amount2').style.display='block';
   document.getElementById('amount3').style.display='none';
   document.getElementById('amount4').style.display='none';
}
if (document.getElementById('myperiod').value == "Q") {
   document.getElementById('whichpaypal').value='_xclick-subscriptions';
   document.getElementById('period').value='M';
   document.getElementById('recurrent').value='1';
   document.getElementById('numperiods').value='3';
   document.getElementById('numpayments2').style.display='none';
   document.getElementById('numpayments3').style.display='block';
   document.getElementById('numpayments4').style.display='none'; 
   document.getElementById('amount1').style.display='none';
   document.getElementById('amount2').style.display='none';
   document.getElementById('amount3').style.display='block';
   document.getElementById('amount4').style.display='none';
}
if (document.getElementById('myperiod').value == "Y") {
   document.getElementById('whichpaypal').value='_xclick-subscriptions';
   document.getElementById('period').value='Y';
   document.getElementById('recurrent').value='1';
   document.getElementById('numperiods').value='1';
   document.getElementById('numpayments2').style.display='none';
   document.getElementById('numpayments3').style.display='none';
   document.getElementById('numpayments4').style.display='block';
   document.getElementById('amount1').style.display='none';
   document.getElementById('amount2').style.display='none';
   document.getElementById('amount3').style.display='none';
   document.getElementById('amount4').style.display='block';
}
}