arr1= new Array('', 'Adult1', 'Adult2', 'Adult3', 'Adult4', 'Adult5', 'Adult6');
		// array of values
		arr2= new Array('', 'Child1', 'Child2', 'Child3', 'Child4', 'Child5', 'Child6');
		// array of labels
		arr3= new Array('0', '1', '2', '3', '4', '5', '6');

		function $(id) {
			return document.getElementById(id);
		}
	
		function RefreshRoomType1() {
			var adults= parseFloat($('roomtype1').value);
			var children= 0;
			if(adults!== "0") {
				$('roomtype').value= arr1[adults] + arr2[children] + '';
				$('roomtype2').options.length= 0;
				children= 0;
				while(adults + children<= 6) {
					$('roomtype2').options[children]= new Option(arr3[children],children);
					children++;
				}
			} else {
				$('roomtype').value= null;
				$('roomtype2').options.length= 0;
				$('roomtype2').options[0]= new Option('Please, select number of Adults first',0);
			}
		}
	
		function RefreshRoomType2() {
			var adults= parseFloat($('roomtype1').value);
			var children= parseFloat($('roomtype2').value);
			if(adults!== "0") {
				$('roomtype').value= arr1[adults] + arr2[children] + '';
			}
		}