
//Script by Denis Gritcyuk: tspicker@yahoo.com
// Title: Timestamp picker
// Description: See the demo at url
// URL: http://us.geocities.com/tspicker/
// Version: 1.0
// Date: 12-05-2001 (mm-dd-yyyy)
// Author: Denis Gritcyuk <denis@softcomplex.com>; <tspicker@yahoo.com>
// Notes: Permission given to use this script in any kind of applications if
//    header lines are left unchanged. Feel free to contact the author
//    for feature requests and/or donations

function show_calendar(str_target, str_datetime) {
	var arr_months = ["Janeiro", "Fevereiro", "Março", "Abril", "Maio", "Junho",
		"Julho", "Agosto", "Setembro", "Outubro", "Novembro", "Dezembro"];
	var week_days = ["Dom", "Seg", "Ter", "Qua", "Qui", "Sex", "Sáb"];
	var n_weekstart = 1; // day week starts from (normally 0 or 1)

	var dt_datetime = (str_datetime == null || str_datetime =="" ?  new Date() : str2dt(str_datetime));
	var dt_prev_month = new Date(dt_datetime);
	dt_prev_month.setMonth(dt_datetime.getMonth()-1);
	var dt_next_month = new Date(dt_datetime);
	dt_next_month.setMonth(dt_datetime.getMonth()+1);
	var dt_firstday = new Date(dt_datetime);
	dt_firstday.setDate(1);
	dt_firstday.setDate(1-(7+dt_firstday.getDay()-n_weekstart)%7);
	var dt_lastday = new Date(dt_next_month);
	dt_lastday.setDate(0);

	// html generation (feel free to tune it for your particular application)
	// print calendar header
    var isIE = (navigator.appName.indexOf("Microsoft", -1))? false:true;
    var acrescimo = (isIE)?0:1900;
    var ano = new Date();
    ano = ano.getYear()+acrescimo;
    var ano_atual = dt_datetime.getYear()+acrescimo;
    //alert(ano_atual);
    var str_sel_ano = "\n<option selected='selected' value=''>Ano</option>\n";
    for (c=0;c<=100;c++){
        str_sel_ano+="<option id='op"+c+"' value='"+(ano-c)+"'>"+(ano-c)+"</option>\n";
    }
    //
	var str_buffer = new String (
		"<html>\n"+
		"<head>\n"+
		"	<title>Calendar</title>\n"+
		"<link href=\"../../style/styleCadastro.css\" rel=\"stylesheet\" type=\"text/css\" />"+
        "<script type='text/javascript'>\n function reloadm(str){\n"+
        " window.opener.show_calendar('"+str_target+"','1/'+str+'/"+ano_atual+"');}\n"+
        "function reloada(str){ \n var ob=document.getElementById('op'+(str-1)).value;\n"+
        " window.opener.show_calendar('"+str_target+"','1/"+(dt_datetime.getMonth()+1)+"/'+ob);} \n</script>"+
        "<style type='text/css'>\n"+
        " .listbox{font-size:8pt; }\n .listcell{height:18px; width:202px; background-color:#F3F3F3;}\n</style>\n"+
        "</head>\n"+
		"<body bgcolor=\"White\" leftmargin=\"0\" marginheight=\"0\" topmargin=\"0\">\n"+
        "<div class='listcell' >"+
        "<form><select id='sel_mes' class='listbox' onchange='javascript:reloadm(this.selectedIndex);'>"+
        "<option value='' selected='selected'>Mês</option>"+
        "<option value='0'>Janeiro</option>"+
        "<option value='1'>Fevereiro</option>"+
        "<option value='2'>Março</option>"+
        "<option value='3'>Abril</option>"+
        "<option value='4'>Maio</option>"+
        "<option value='5'>Junho</option>"+
        "<option value='6'>Julho</option>"+
        "<option value='7'>Agosto</option>"+
        "<option value='8'>Setembro</option>"+
        "<option value='9'>Outubro</option>"+
        "<option value='10'>Novembro</option>"+
        "<option value='11'>Dezembro</option>"+
        "</select>"+
        "<select id='sel_ano' class='listbox' onchange='javascript:reloada(this.selectedIndex);'>"+str_sel_ano+
        "</select>"+
        "</form>"+
        "</div>\n"+
        "<table class=\"clsOTable\" cellspacing=\"0\" border=\"0\" width=\"100%\">\n"+
        "<tr><td bgcolor=\"#F3F3F3\">\n"+
		"<table cellspacing=\"1\" cellpadding=\"3\" border=\"0\" width=\"100%\">\n"+
		"<tr>\n	<td bgcolor=\"#F3F3F3\"><a href=\"javascript:window.opener.show_calendar('"+
		str_target+"', '"+ dt2dtstr(dt_prev_month)+"'+document.cal.time.value);\">"+
		"<</a></td>\n"+
		"	<td bgcolor=\"#F3F3F3\" colspan=\"5\">"+
		"<center><font color=\"Silver\" face=\" verdana\" size=\"1\">"
		+arr_months[dt_datetime.getMonth()]+" "+dt_datetime.getFullYear()+"</font></center></td>\n"+
		"	<td bgcolor=\"#F3F3F3\" align=\"right\"><a href=\"javascript:window.opener.show_calendar('"
		+str_target+"', '"+dt2dtstr(dt_next_month)+"'+document.cal.time.value);\">"+
		"></a></td>\n</tr>\n"
	);

	var dt_current_day = new Date(dt_firstday);
	// print weekdays titles
	str_buffer += "<tr>\n";
	for (var n=0; n<7; n++)
		str_buffer += "	<td bgcolor=\"#CCCCCC\">"+
		"<font color=\"white\" face=\" verdana\" size=\"1\">"+
		week_days[(n_weekstart+n)%7]+"</font></td>\n";
	// print calendar table
	str_buffer += "</tr>\n";
	while (dt_current_day.getMonth() == dt_datetime.getMonth() ||
		dt_current_day.getMonth() == dt_firstday.getMonth()) {
		// print row heder
		str_buffer += "<tr>\n";
		for (var n_current_wday=0; n_current_wday<7; n_current_wday++) {
				if (dt_current_day.getDate() == dt_datetime.getDate() &&
					dt_current_day.getMonth() == dt_datetime.getMonth())
					// print current date
					str_buffer += "	<td bgcolor=\"White\" align=\"right\">";
				else if (dt_current_day.getDay() == 0 || dt_current_day.getDay() == 6)
					// weekend days
					str_buffer += "	<td bgcolor=\"White\" align=\"right\">";
				else
					// print working days of current month
					str_buffer += "	<td bgcolor=\"white\" align=\"right\">";

				if (dt_current_day.getMonth() == dt_datetime.getMonth())
					// print days of current month
					str_buffer += "<a href=\"javascript:window.opener."+str_target+
					".value='"+dt2dtstr(dt_current_day)+"'; window.close();\">"+
					"<font color=\"black\" face=\" verdana\" size=\"1\">";
				else 
					// print days of other months
					str_buffer += "<a href=\"javascript:window.opener."+str_target+
					".value='"+dt2dtstr(dt_current_day)+"'+document.cal.time.value; window.close();\">"+
					"<font color=\"gray\" face=\" verdana\" size=\"1\">";
				str_buffer += dt_current_day.getDate()+"</font></a></td>\n";
				dt_current_day.setDate(dt_current_day.getDate()+1);
		}
		// print row footer
		str_buffer += "</tr>\n";
	}
	// print calendar footer
	str_buffer +=
		"<form name=\"cal\">\n<tr><td colspan=\"7\" bgcolor=\"#F3F3F3\">"+
		"<font color=\"White\" face=\"verdana\" size=\"1\">"+
		"<input type=\"hidden\" name=\"time\" value=\""+dt2tmstr(dt_datetime)+     //call.time.value
		"\" size=\"8\" maxlength=\"8\"></font></td></tr>\n</form>\n" +
		"</table>\n" +
		"</tr>\n</td>\n</table>\n"+
		"</body>\n" +
		"</html>\n";

	
	if(window.screen){
		var features = '';
		var myLeft = (window.screen.width-202)/2;
		var myTop = (window.screen.height-170)/2;  //original 149
		features+=(features!='')?',':'';
		features+=',left='+myLeft+',top='+myTop;
	}

	var vWinCal = window.open("", "Calendar", "width=202,height=170,status=no,resizable=no,"+features+((features!='')?',':''));
	//alert(document.cal.time.value); /////
	vWinCal.opener = self;
	var calc_doc = vWinCal.document;
	calc_doc.write (str_buffer);
	calc_doc.close();
}
// datetime parsing and formatting routimes. modify them if you wish other datetime format
function str2dt (str_datetime) {
	var re_date = /^(\d+)\/(\d+)\/(\d+)/;
	if (!re_date.exec(str_datetime))
		return alert("Data Invalida:"+ str_datetime);
	return (new Date (RegExp.$3, RegExp.$2-1, RegExp.$1, RegExp.$4, RegExp.$5, RegExp.$6));
}
function dt2dtstr (dt_datetime) {
	return (new String (
			dt_datetime.getDate()+"/"+(dt_datetime.getMonth()+1)+"/"+dt_datetime.getFullYear()+" "));
}
function dt2tmstr (dt_datetime) {
	return (new String ());
}