function displayRegisterForm() {
  document.getElementById("alreadyRegisteredFormDiv").style.display = "none";
  document.getElementById("registerFormDiv").style.display = "block";  
  document.getElementById("sendPasswordFormDiv").style.display = "none";  
  document.getElementById("registerCheckbox").checked = true;
  document.getElementById("loginCheckbox").checked = false;
}

function displayLoginForm() {
  document.getElementById("alreadyRegisteredFormDiv").style.display = "block";
  document.getElementById("registerFormDiv").style.display = "none";
  document.getElementById("sendPasswordFormDiv").style.display = "none";  
  document.getElementById("registerCheckbox").checked = false;
  document.getElementById("loginCheckbox").checked = true;
}

function displaySendEmailForm() {
  document.getElementById("alreadyRegisteredFormDiv").style.display = "none";
  document.getElementById("registerFormDiv").style.display = "none";
  document.getElementById("sendPasswordFormDiv").style.display = "block";
  document.getElementById("registerCheckbox").checked = false;
  document.getElementById("loginCheckbox").checked = false;
}

function transferChecked() {
	document.getElementById("transferCheckbox").checked = true;
	document.getElementById("cardCheckbox").checked = false;
	document.getElementById("payPalCheckbox").checked = false;	
}

function creditCardChecked() {
	document.getElementById("transferCheckbox").checked = false;
	document.getElementById("cardCheckbox").checked = true;
	document.getElementById("payPalCheckbox").checked = false;	
}

function payPalChecked() {
	document.getElementById("transferCheckbox").checked = false;
	document.getElementById("cardCheckbox").checked = false;
	document.getElementById("payPalCheckbox").checked = true;
}

function submitSendPasswordForm(){
	document.getElementById('sendEmailForm').submit();
}


function submitRegisterForm(){
	document.getElementById('registerForm').submit();
}

function submitForm(){
	document.forms['loginForm'].submit();
}

function submitUserDataForm() {
	document.forms['userDataForm'].submit();
}		

function submitPayForm() {
	document.forms['payForm'].submit();
}		

function submitPayAgainForm(){
	document.forms['payAgainForm'].submit();
}		


function payment() { 
	document.forms[0].JS.value=1; 
}

function submitSendEmail() {
	document.forms['sendEmailForm'].submit();
}
		
function showDownload(link)    {
	window.open(link,"","width=430,height=180,resizable=0,toolbar=0,directories=0,status=0,menubar=0,scrollbars=0");
}