// Title: Timestamp picker

// Description: See the demo at url

// URL: http://www.geocities.com/tspicker/

// Version: 1.0.a (Date selector only)

// Date: 12-12-2001 (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_calendar2(str_target, str_datetime) {

            var arr_months = ["Enero", "Febrero", "Marzo", "Abril", "Mayo", "Junio",

                        "Julio", "Agosto", "Septiembre", "Octubre", "Noviembre", "Diciembre"];

            var week_days = ["Do", "Lu", "Ma", "Mi", "Ju", "Vi", "Sa"];

            var n_weekstart = 1; // day week starts from (normally 0 or 1)

 

            var dt_datetime = (str_datetime == null || str_datetime =="" ?  new Date() : str2dt2(str_datetime));

            var dt_prev_month = new Date(dt_datetime);

            dt_prev_month.setMonth(dt_datetime.getMonth()-1);

            if (dt_datetime.getMonth()%12 != (dt_prev_month.getMonth()+1)%12) {

                        dt_prev_month.setMonth(dt_datetime.getMonth());

                        dt_prev_month.setDate(0);

            }

            var dt_next_month = new Date(dt_datetime);

            dt_next_month.setMonth(dt_datetime.getMonth()+1);

            if ((dt_datetime.getMonth() + 1)%12 != dt_next_month.getMonth()%12)

                        dt_next_month.setDate(0);

            

            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>Calendario</title>\n"+

                        "<style type=\"text/css\"><!--a:active {  text-decoration: none}a:hover {  text-decoration: none} a:link {  text-decoration: none}a:visited {  text-decoration: none}--></style>\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_calendar2('"+

                        str_target+"', '"+ dt2dtstr2(dt_prev_month)+"');\">"+

                        "<img src=\"../imagenes/prev.gif\" width=\"16\" height=\"16\" border=\"0\""+

                        " alt=\"previous month\"></a></td>\n"+

                        "           <td bgcolor=\"#4682B4\" align=\"center\" colspan=\"5\">"+

                        "<font color=\"white\" face=\"tahoma, verdana\" size=\"2\">"

                        +arr_months[dt_datetime.getMonth()]+" "+dt_datetime.getFullYear()+"</font></td>\n"+

                        "           <td bgcolor=\"#4682B4\" align=\"right\"><a href=\"javascript:window.opener.show_calendar2('"

                        +str_target+"', '"+dt2dtstr2(dt_next_month)+"');\">"+

                        "<img src=\"../imagenes/next.gif\" width=\"16\" height=\"16\" border=\"0\""+

                        " alt=\"next month\"></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=\"#666699\">"+

                        "<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 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=\"#DBD5AE\" 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:window.opener."+str_target+

                                                           ".value='"+dt2dtstr2(dt_current_day)+"'; window.close();\">"+

                                                           "<font color=\"black\" face=\"tahoma, verdana\" size=\"2\">";

                                               else 

                                                           // print days of other months

                                                           str_buffer += "<a href=\"javascript:window.opener."+str_target+

                                                           ".value='"+dt2dtstr2(dt_current_day)+"'; window.close();\">"+

                                                           "<font color=\"gray\" face=\"tahoma, verdana\" size=\"2\">";

                                               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 +=

                        "</table>\n" +

                        "</tr>\n</td>\n</table>\n" +

                        "</body>\n" +

                        "</html>\n";

 

                        var altura=screen.height;

                        var anchura=screen.width;

                        var vent_x=200;

                        var vent_y=220;

                        var posx=anchura/2-100;

                        var posy=altura/2-110;

                        como='resizable=0,toolbar=0,location=0,directories=0,status=1,menubar=0,scrollbars=0,width='+vent_x+',height='+vent_y+',screenX='+posx+',screenY='+posy+',left='+posx+',top='+posy+''

 

 

 

            var vWinCal = window.open("", "Calendar",como); 

                        //"width=200,height=215,status=no,resizable=yes,top=200,left=200");

            vWinCal.opener = self;

            vWinCal.focus();

            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 str2dt2 (str_datetime) {

            var re_date = /^(\d+)\/(\d+)\/(\d+)$/;

            if (!re_date.exec(str_datetime))

                        return alert("Invalid Datetime format: "+ str_datetime);

            return (new Date (RegExp.$3, RegExp.$2-1, RegExp.$1));

}

function dt2dtstr2 (dt_datetime) {

            return (new String (

                                   dt_datetime.getDate()+"/"+(dt_datetime.getMonth()+1)+"/"+dt_datetime.getFullYear()));

}

