// open hidden layer
function enableSubmit() {
	var formToSend = document.getElementById("form");

	formToSend.submit_button.value = 'Submit';
	formToSend.submit_button.name = 'Submit';
	formToSend.submit_button.disabled=false;
}
function disableSubmit() {
	if(fieldsFilled() != ''){
		alert('Please fill in your ' + fieldsFilled());
		return;
	}
	var formToSend = document.getElementById("form");

	formToSend.submit_button.value = 'Sending';
	formToSend.submit_button.name = 'Sending';
	formToSend.submit_button.disabled=true;
	formToSend.submit();
}
function fieldsFilled(){
	var formToSend = document.getElementById("form");

	
	if(formToSend.email.value == ''){
		return 'email';	
	}
	if(formToSend.first_name.value == ''){
		return 'first name';	
	}
	if(formToSend.last_name.value == ''){
		return 'last name';	
	}
	return '';
}