function fitHeight () {
	var browser = navigator.appName
	var thisHeight = (navigator.appName == "Microsoft Internet Explorer") ? document.body.clientHeight - 159 : window.innerHeight - 159;
	document.getElementById('fitImage').height = thisHeight;
}

function writeAdults () {
	var idPrefixes = new Array('adult_')
	for (i = 2; i < 10; i++){
		for (thisPrefix in idPrefixes) {
			document.getElementById(idPrefixes[thisPrefix] + i).style.visibility = 'hidden'
			document.getElementById(idPrefixes[thisPrefix] + i).style.position = 'absolute'
		}
	}

	numAdults = document.getElementById("number_of_adults").selectedIndex + 2
	for (i = 2; i < numAdults; i++){
		for (thisPrefix in idPrefixes) {
			document.getElementById(idPrefixes[thisPrefix] + i).style.visibility = 'visible'
			document.getElementById(idPrefixes[thisPrefix] + i).style.position = 'relative'
		}
	}
}

function writeAdult_1 () {
	document.getElementById("adult_1").value = document.getElementById("party_leader").value
}