// 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", "Mar&ccedil;o", "Abril", "Maio", "Junho",      "Julho", "Agosto", "Setembro", "Outubro", "Novembro", "Dezembro"];   
var week_days = ["Do", "Se", "Te", "Qa", "Qi", "Sx", "Sa"];   
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 str_buffer = new String (      
	"<html>\n"+      
	"<head>\n"+      
	"  <title>Calend&aacute;rio</title>\n"+      
	"</head>\n"+      
	"<body bgcolor=\"White\">\n"+      
	"<table class=\"clsOTable\" cellspacing=\"0\" border=\"0\" width=\"100%\">\n"+      
	"<tr><td bgcolor=\"#4682B4\">\n"+      
	"<table cellspacing=\"1\" cellpadding=\"3\" border=\"0\" width=\"100%\">\n"+      
	"<tr>\n <td bgcolor=\"#4682B4\"><a href=\"javascript:window.opener.show_calendar('"+
	str_target+"', '"+ dt2dtstr(dt_prev_month)+"');\">"+
	"<img src=\"http://www.ahfricanet.com/mj/Images/prev.GIF\" width=\"16\" height=\"16\" border=\"0\""+      
	" alt=\"m&ecirc;s anterior\"></a></td>\n"+      
	"<td bgcolor=\"#4682B4\" colspan=\"5\">"+      
	"<font color=\"white\" face=\"tahoma, verdana\" size=\"2\">"+arr_months[dt_datetime.getMonth()]+" "+dt_datetime.getFullYear()+"</td>\n"+      
	"   <td bgcolor=\"#4682B4\" align=\"right\"><a href=\"javascript:window.opener.show_calendar('"
	+str_target+"', '"+dt2dtstr(dt_next_month)+"');\">"+ 
	"<img src=\"http://www.ahfricanet.com/mj/Images/next.GIF\" width=\"16\" height=\"16\" border=\"0\""+ 
	" alt=\"m&ecirc;s seguinte\"></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=\"#87CEFA\">"+      
	    "<font color=\"white\" face=\"tahoma, verdana\" size=\"2\">"+      
	    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 header      
		  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=\"#FFB6C1\" align=\"right\">";
				else if (dt_current_day.getDay() == 0 || 
				        dt_current_day.getDay() == 6)               
						// weekend days               
						str_buffer += "   <td bgcolor=\"#DBEAF5\" 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:opener.document.getElementById('"+str_target+"').value='"+dt2dtstr(dt_current_day)+"'; window.close();\">"+ 
    "<font color=\"black\" face=\"tahoma, verdana\" size=\"2\">";            
	else               
	// print days of other months               
	str_buffer += "<a href=\"javascript:opener.document.getElementById('"+str_target+"').value='"+dt2dtstr(dt_current_day)+"'; window.close();\">"+ 
	"<font color=\"gray\" face=\"tahoma, verdana\" size=\"2\">";            
	str_buffer += dt_current_day.getDate()+"</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=\"#87CEFA\">"+      
	"<font color=\"White\" face=\"tahoma, verdana\" size=\"2\">"+      
	"<input type=\"hidden\" name=\"time\" value=\""+
	"\" size=\"8\" maxlength=\"8\"></td></tr>\n</form>\n" +
	"</table>\n" +      
	"</td>\n</tr>\n</table>\n" + 
	"</body>\n" +      
	"</html>\n";   
	var vWinCal = window.open("", "Calendar", "width=200,height=210,status=no,resizable=yes,top=390,left=100");   
	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+)\s+$/;   
	if (!re_date.exec(str_datetime))      
	return alert("Invalid Datetime format: "+ 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()+" "));
	}

//  <body> <!--*** Calend&aacute;rio *****--> <script>show_calendar("mydate2");</script> </body>


