function show_calendar(str_target, str_datetime) { var arr_months = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"]; var week_days = ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"]; var n_weekstart = 0; // 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); //alert(dt_prev_month) 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); var str_buffer = new String ( "\n"+ "\n"+ " Calendar\n"+ "\n"+ "\n"+ "\n"+ "\n\n
\n"+ "\n"+ "\n \n"+ " \n"+ " \n\n" ); var dt_current_day = new Date(dt_firstday); // print weekdays titles str_buffer += "\n"; for (var n=0; n<7; n++) str_buffer += " \n"; // print calendar table str_buffer += "\n"; while (dt_current_day.getMonth() == dt_datetime.getMonth() || dt_current_day.getMonth() == dt_firstday.getMonth()) { // print row heder str_buffer += "\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 += " \n"; dt_current_day.setDate(dt_current_day.getDate()+1); } // print row footer str_buffer += "\n"; } // print calendar footer str_buffer += "\n\n\n" + "
"+ "\"previous"+ "" +arr_months[dt_datetime.getMonth()]+" "+dt_datetime.getFullYear()+""+ "\"next
"+ ""+ week_days[(n_weekstart+n)%7]+"
"; else if (dt_current_day.getDay() == 0 || dt_current_day.getDay() == 6) // weekend days str_buffer += " "; else // print working days of current month str_buffer += " "; if (dt_current_day.getMonth() == dt_datetime.getMonth()) // print days of current month str_buffer += ""+ ""; else // print days of other months str_buffer += ""+ ""; str_buffer += dt_current_day.getDate()+"
"+ ""+ "
\n" + "
\n" + "\n" + "\n"; var vWinCal = window.open("", "Calendar","width=220,height=210,status=no,resizable=no,top=200,left=200"); vWinCal.opener = self; var calc_doc = vWinCal.document; //alert(str_buffer) 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) { // Checks whether the entered date is valid or not. var re = /^\d{1,2}\/\d{1,2}\/\d{4}$/ if (!re.test(str_datetime)) { alert("Please enter date in the specified format"); return (new Date()); } var strdateary = str_datetime; var strdateval = strdateary.split("/"); var day = strdateval[0]; var mnth = strdateval[1]; var yr = strdateval[2]; var newday = mnth+"/"+day+"/"+yr; return (new Date(newday)); /* alert(res); alert("Function value "+str_datetime); return (new Date(str_datetime));*/ } function dt2dtstr (dt_datetime) { month=new String(dt_datetime.getMonth() + 1) day1=new String(dt_datetime.getDate()) if (month.length==1) { month="0" + month } if (day1.length==1) { day1="0" + day1 } /*return (new String ( ( month)+"/"+day1+"/"+dt_datetime.getFullYear()));*/ return (new String ( day1+"/"+month+"/"+dt_datetime.getFullYear())); //return (new String ( //( dt_datetime.getMonth()+1)+"/"+dt_datetime.getDate()+"/"+dt_datetime.getFullYear())); } function dt2tmstr (dt_datetime) { return (new String ( dt_datetime.getHours()+":"+dt_datetime.getMinutes()+":"+dt_datetime.getSeconds())); }