function popdate(obj,div,tam,ddd){
	if (ddd){
		day = ""
		mmonth = ""
		ano = ""
		c = 1
		char = ""
		
		for (s=0;s<parseInt(ddd.length);s++){
			char = ddd.substr(s,1)
			
			if (char == "/"){
				c++; 
				s++; 
				char = ddd.substr(s,1);
			}
			
			if (c==1) day    += char
			
			if (c==2) mmonth += char
			
			if (c==3) ano    += char
		}
		ddd = mmonth + "/" + day + "/" + ano
	}
	  
	if(!ddd) {today = new Date()} else {today = new Date(ddd)}
	
	date_Form = eval (obj)
	
	if (date_Form.value == "") { date_Form = new Date()} else {date_Form = new Date(date_Form.value)}
	  
	ano = today.getFullYear();
	mmonth = today.getMonth ();
	day = today.toString ().substr (8,2)
	  
	umonth = new Array ("Janeiro", "Fevereiro", "Março", "Abril", "Maio", "Junho", "Julho", "Agosto", "Setembro", "Outubro", "Novembro", "Dezembro")
	days_Feb = (!(ano % 4) ? 29 : 28)
	days = new Array (31, days_Feb, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31)
	
	if ((mmonth < 0) || (mmonth > 11))  alert(mmonth)
	if ((mmonth - 1) == -1) {month_prior = 11; year_prior = ano - 1} else {month_prior = mmonth - 1; year_prior = ano}
	if ((mmonth + 1) == 12) {month_next  = 0;  year_next  = ano + 1} else {month_next  = mmonth + 1; year_next  = ano}
	txt  = "<table bgcolor='#CCCCCC' style='border:solid #CCCCCC; border-width:0.5' cellspacing='0' cellpadding='3' border='0' width='"+tam+"' height='"+tam*1.1 +"'>"
	txt += "<tr bgcolor='#CCCCCC'><td colspan='7' align='center'><table border='0' cellpadding='0' width='100%' bgcolor='#FFFFFF'><tr>"
	txt += "<td width=20% align=center><a href=javascript:popdate('"+obj+"','"+div+"','"+tam+"','"+((mmonth+1).toString() +"/01/"+(ano-1).toString())+"') class='Cabecalho_Calendario' title='Ano Anterior'><<</a></td>"
	txt += "<td width=20% align=center><a href=javascript:popdate('"+obj+"','"+div+"','"+tam+"','"+( "01/" + (month_prior+1).toString() + "/" + year_prior.toString())+"') class='Cabecalho_Calendario' title='Mês Anterior'><</a></td>"
	txt += "<td width=20% align=center><a href=javascript:popdate('"+obj+"','"+div+"','"+tam+"','"+( "01/" + (month_next+1).toString()  + "/" + year_next.toString())+"') class='Cabecalho_Calendario' title='Próximo Mês'>></a></td>"
	txt += "<td width=20% align=center><a href=javascript:popdate('"+obj+"','"+div+"','"+tam+"','"+((mmonth+1).toString() +"/01/"+(ano+1).toString())+"') class='Cabecalho_Calendario' title='Próximo Ano'>>></a></td>"
	txt += "<td width=20% align=right><a href=javascript:force_close('"+div+"') class='Cabecalho_Calendario' title='Fechar Calendário'><b>X</b></a></td></tr></table></td></tr>"
	txt += "<tr><td colspan='7' align='right' bgcolor='#CCCCC' class='mes'>" + umonth[mmonth] + " - " + ano.toString() + "</td></tr>"
	txt += "<tr bgcolor='#f5f5f5'><td width='14%' class='dia' align=center><b>Dom</b></td><td width='14%' class='dia' align=center><b>Seg</b></td><td width='14%' class='dia' align=center><b>Ter</b></td><td width='14%' class='dia' align=center><b>Qua</b></td><td width='14%' class='dia' align=center><b>Qui</b></td><td width='14%' class='dia' align=center><b>Sex<b></td><td width='14%' class='dia' align=center><b>Sab</b></td></tr>"
		
	today1 = new Date((mmonth+1).toString() +"/01/"+ano.toString());
	diainicio = today1.getDay () + 1;
	week = d = 1
	start = false;
	
	for (n=1;n<= 42;n++){
		if (week == 1)  txt += "<tr bgcolor='#F0FFF0' align=center>"
		if (week==diainicio) {start = true}
		if (d > days[mmonth]) {start=false}
		   
		if (start){
			dat = new Date((mmonth+1).toString() + "/" + d + "/" + ano.toString())
			day_dat   = dat.toString().substr(0,10)
			day_today  = date_Form.toString().substr(0,10)
			year_dat  = dat.getFullYear ()
			year_today = date_Form.getFullYear ()
			colorcell = ((day_dat == day_today) && (year_dat == year_today) ? " bgcolor='#FFCC00' " : "" )
			txt += "<td"+colorcell+" align=center><a href=javascript:block('"+  d + "/" + (mmonth+1).toString() + "/" + ano.toString() +"','"+ obj +"','" + div +"') class='data'>"+ d.toString() + "</a></td>"
			d ++ 
		}else { 
			txt += "<td class='data' align=center> </td>"
		}
		week ++
		if (week == 8){ 
			week = 1; txt += "</tr>"} 
		}
		txt += "</table>"
		//div2 = eval (div)
		//div2.innerHTML = txt 
		document.getElementById(div).innerHTML = txt ;
	}
	
	// função para fechar o calendário
	function force_close(div) {
		document.getElementById(div).innerHTML = '';
	}
		
	function block(data, obj, div){ 
		var today = new  Date();
		var mes = today.getMonth();
		mes++;
		var today  = today.toString().substr (8,2)+"/"+ mes +"/"+ today.getFullYear()

		obj2 = eval(obj)
		obj2.value = data 
		force_close (div)
	}