function Dataatual(SelectBox) {
		var dataatual = new Date();
		if (SelectBox == "libera") {
			document.forms[1].mes.value = dataatual.getMonth() + 1; 
			document.forms[1].dia.value = dataatual.getDate();
			document.forms[1].ano.value = dataatual.getYear();
		}		
	}

	function calculardias() {	
		var selMes = document.forms[1].mes.value;
		var selDia = document.forms[1].dia.value;
		var selAno = document.forms[1].ano.value;
		var intMaxDia = 31;
		var intDia = 1;
		var DiaHTML = "";
		var arrDias = new Array();		
		if (selMes != 0 && selMes != null && selAno != 0 && selAno != null) {			
			switch (selMes) { 
			   case "1":
			   case "3":
			   case "5":
			   case "7":
			   case "8":
			   case "10":
			   case "12": 
			      {
					intMaxDia = 31;
			      }
			      break; 
			   case "4":
			   case "6":
			   case "9":
			   case "11": 
			      {
					intMaxDia = 30; 
			      }
			      break; 				      
			   case "2": 
			      {
					if (selAno % 4 == 0 && (selAno % 1000 == 0 || selAno % 100 != 0)) {
						intMaxDia = 29;
					} else {
						intMaxDia = 28;
					}
			      }
			      break; 
			   default: 
				  {
					intMaxDia = 31;
				  }
			}
			while (document.forms[1].dia.length > 1) {
				document.forms[1].dia.options[document.forms[1].dia.length-1] = null;
			}
			for (intDia=1; intDia<=intMaxDia; intDia++) {
				var Eintrag = new Option(intDia);
				document.forms[1].dia.options[document.forms[1].dia.length] = Eintrag;
				document.forms[1].dia.selectedIndex = intDia;
				document.forms[1].dia.options[document.forms[1].dia.selectedIndex].value = intDia;	
			}
			document.forms[1].dia.selectedIndex = selDia;
		}
	}