function toggleCheck(idCheck, idValue){

	var check = document.getElementById(idCheck);
	var checkValue = document.getElementById(idValue);
	
	if(checkValue.value=='N') {

		checkValue.value='Y';
		check.style.display='block';
	} 
	
	else { 

		checkValue.value='N';
		check.style.display='none';
	}
}

function checkSelected(idValue1, idValue2, idValue3) {
	var value1 = document.getElementById(idValue1).value;
	var value2 = document.getElementById(idValue2).value;
	var value3 = document.getElementById(idValue3).value;
	if (value1=='N' && value2=='N' && value3 == 'N') {
		document.getElementById('prodotti').value='';
	} else {
		document.getElementById('prodotti').value='ok';
	}
}