// © SoftComplex (feedback@softcomplex.com) - http://www.softcomplex.com

// Note: Permission given to use this script in ANY kind of applications if header lines are left unchanged.

// Note: Script consists of two files: calendar?.js and calendar.html

// About us: Our company provides offshore IT consulting services.

// Contact us at sales@softcomplex.com if you have any programming task you want to be handled by professionals. Our typical hourly rate is $20. If two digit year input dates after this year considered 20 century.

var NUM_CENTYEAR = 30;

var BUL_TIMECOMPONENT = false;

var BUL_YEARSCROLL = true;

var calendars = [];

var RE_NUM = /^\-?\d+$/;

function calendar2(obj_target) {

this.gen_date = cal_gen_date2;

this.gen_time = cal_gen_time2;

this.gen_tsmp = cal_gen_tsmp2;

this.prs_date = cal_prs_date2;

this.prs_time = cal_prs_time2;

this.prs_tsmp = cal_prs_tsmp2;

this.popup    = cal_popup2;

if (!obj_target)

return cal_error("Error calling the calendar: no target control specified");

if (obj_target.value == null)

return cal_error("Error calling the calendar: parameter specified is not valid tardet control");

this.target = obj_target;

this.time_comp = BUL_TIMECOMPONENT;

this.year_scroll = BUL_YEARSCROLL;

this.id = calendars.length;

calendars[this.id] = this;

}

function cal_popup2 (str_datetime) {

this.dt_current = this.prs_tsmp(str_datetime ? str_datetime : this.target.value);

if (!this.dt_current) return;

var obj_calwindow = window.open(

'calendar.html?datetime=' + this.dt_current.valueOf()+ '&id=' + this.id,

'Calendar', 'width=200,height='+(this.time_comp ? 215 : 190)+

',status=no,resizable=no,top=200,left=200,dependent=yes,alwaysRaised=yes'

);

obj_calwindow.opener = window;

obj_calwindow.focus();

}

function cal_gen_tsmp2 (dt_datetime) {

return(this.gen_date(dt_datetime) + ' ' + this.gen_time(dt_datetime));

}

function cal_gen_date2 (dt_datetime) {

return (

(dt_datetime.getMonth() < 9 ? '0' : '') + (dt_datetime.getMonth() + 1) + "/"

+ (dt_datetime.getDate() < 10 ? '0' : '') + dt_datetime.getDate() + "/"

+ dt_datetime.getFullYear()

);

}

function cal_gen_time2 (dt_datetime) {

return (

(dt_datetime.getHours() < 10 ? '0' : '') + dt_datetime.getHours() + ":"

+ (dt_datetime.getMinutes() < 10 ? '0' : '') + (dt_datetime.getMinutes()) + ":"

+ (dt_datetime.getSeconds() < 10 ? '0' : '') + (dt_datetime.getSeconds())

);

}

function cal_prs_tsmp2 (str_datetime) {

if (!str_datetime)

return (new Date());

if (RE_NUM.exec(str_datetime))

return new Date(str_datetime);

var arr_datetime = str_datetime.split(' ');

return this.prs_time(arr_datetime[1], this.prs_date(arr_datetime[0]));

}

function cal_prs_date2 (str_date) {

var arr_date = str_date.split('/');

if (arr_date.length != 3) return alert ("Invalid date format: '" + str_date + "'.\nFormat accepted is dd-mm-yyyy.");

if (!arr_date[1]) return alert ("Invalid date format: '" + str_date + "'.\nNo day of month value can be found.");

if (!RE_NUM.exec(arr_date[1])) return alert ("Invalid day of month value: '" + arr_date[1] + "'.\nAllowed values are unsigned integers.");

if (!arr_date[0]) return alert ("Invalid date format: '" + str_date + "'.\nNo month value can be found.");

if (!RE_NUM.exec(arr_date[0])) return alert ("Invalid month value: '" + arr_date[0] + "'.\nAllowed values are unsigned integers.");

if (!arr_date[2]) return alert ("Invalid date format: '" + str_date + "'.\nNo year value can be found.");

if (!RE_NUM.exec(arr_date[2])) return alert ("Invalid year value: '" + arr_date[2] + "'.\nAllowed values are unsigned integers.");

var dt_date = new Date();

dt_date.setDate(1);

if (arr_date[0] < 1 || arr_date[0] > 12) return alert ("Invalid month value: '" + arr_date[0] + "'.\nAllowed range is 01-12.");

dt_date.setMonth(arr_date[0]-1);

if (arr_date[2] < 100) arr_date[2] = Number(arr_date[2]) + (arr_date[2] < NUM_CENTYEAR ? 2000 : 1900);

dt_date.setFullYear(arr_date[2]);

var dt_numdays = new Date(arr_date[2], arr_date[0], 0);

dt_date.setDate(arr_date[1]);

if (dt_date.getMonth() != (arr_date[0]-1)) return alert ("Invalid day of month value: '" + arr_date[1] + "'.\nAllowed range is 01-"+dt_numdays.getDate()+".");

return (dt_date)

}

function cal_prs_time2 (str_time, dt_date) {

if (!dt_date) return null;

var arr_time = String(str_time ? str_time : '').split(':');

if (!arr_time[0]) dt_date.setHours(0);

else if (RE_NUM.exec(arr_time[0]))

if (arr_time[0] < 24) dt_date.setHours(arr_time[0]);

else return cal_error ("Invalid hours value: '" + arr_time[0] + "'.\nAllowed range is 00-23.");

else return cal_error ("Invalid hours value: '" + arr_time[0] + "'.\nAllowed values are unsigned integers.");

if (!arr_time[1]) dt_date.setMinutes(0);

else if (RE_NUM.exec(arr_time[1]))

if (arr_time[1] < 60) dt_date.setMinutes(arr_time[1]);

else return cal_error ("Invalid minutes value: '" + arr_time[1] + "'.\nAllowed range is 00-59.");

else return cal_error ("Invalid minutes value: '" + arr_time[1] + "'.\nAllowed values are unsigned integers.");

if (!arr_time[2]) dt_date.setSeconds(0);

else if (RE_NUM.exec(arr_time[2]))

if (arr_time[2] < 60) dt_date.setSeconds(arr_time[2]);

else return cal_error ("Invalid seconds value: '" + arr_time[2] + "'.\nAllowed range is 00-59.");

else return cal_error ("Invalid seconds value: '" + arr_time[2] + "'.\nAllowed values are unsigned integers.");

dt_date.setMilliseconds(0);

return dt_date;

}

function cal_error (str_message) {

alert (str_message);

return null;

}