function initNoArrival() {

	if (!document.getElementById("arrival") 
			|| !document.getElementById("noReturn")
			|| !document.getElementById("dateButtonArrival")) {
		return;
	}
	
	document.getElementById("noReturn").onclick = function() {
			noArrivalSwitch();
		}
	
	

}

function noArrivalSwitch() {
	var arrival = document.getElementById("arrival");
	var noReturn = document.getElementById("noReturn");
	var dateButtonArrival = document.getElementById("dateButtonArrival");
	
	if (arrival && noReturn && dateButtonArrival) {
		if (!noReturn.checked) {
			arrival.disabled=false;
			dateButtonArrival.style.display = 'inline';
		} else {
			arrival.disabled=true;
			dateButtonArrival.style.display = 'none';
		}

	}
	
}

addInitFunction(initNoArrival);