function changetype(booktype, booktype_id, dynvarpic) {
	document.getElementById('type').value = booktype_id;
	document.getElementById(booktype).src = '../images/' + dynvarpic + '/' + booktype + '2.gif';
	if (document.getElementById('oldtype').value != '') {
		document.getElementById(document.getElementById('oldtype').value).src = '../images/' + dynvarpic + '/' + document.getElementById('oldtype').value + '1.gif';
	}
	document.getElementById('oldtype').value = booktype;
}

function correctnum() {
	if (document.quicksearch.bookingnr.value != '') {
		if (document.quicksearch.bookingnr.value.substring(0,1) == '1') {
			document.quicksearch.bookingnr.value = 'I' + document.quicksearch.bookingnr.value.substring(1,10);
		}
		
		if (document.quicksearch.bookingnr.value.substring(5,6) != '/') {
			document.quicksearch.bookingnr.value = document.quicksearch.bookingnr.value.substring(0,5) + '/' + document.quicksearch.bookingnr.value.substring(5,10)
		}
	}
	
}