//Javascript name: My Date Time Picker
//Date created: 16-Nov-2003 23:19
//Scripter: TengYong Ng
//Website: http://www.rainforestnet.com
//Copyright (c) 2003 TengYong Ng
//FileName: DateTimePicker.js
//Version: 1.7.3
//Contact: contact@rainforestnet.com
// Note: Permission given to use this script in ANY kind of applications if
//      header lines are left unchanged.

//Global variables
var FormName="";
var winCal;
var dtToday=new Date();
var Cal;
var docCal;
var MonthName=["January", "February", "March", "April", "May", "June","July",
        "August", "September", "October", "November", "December"];
var WeekDayName1=["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"];
var WeekDayName2=["Monday","Tuesday","Wednesday","Thursday","Friday","Saturday","Sunday"];
var exDateTime;//Existing Date and Time
var selDate;//selected date. version 1.7


//Configurable parameters
var cnTop="200";//top coordinate of calendar window.
var cnLeft="500";//left coordinate of calendar window
var WindowTitle ="DateTime Picker";//Date Time Picker title.
var WeekChar=2;//number of character for week day. if 2 then Mo,Tu,We. if 3 then Mon,Tue,Wed.
var CellWidth=20;//Width of day cell.
var DateSeparator="/";//Date Separator, you can change it to "/" if you want.
var TimeMode=24;//default TimeMode value. 12 or 24

var ShowLongMonth=true;//Show long month name in Calendar header. example: "January".
var ShowMonthYear=true;//Show Month and Year in Calendar header.
var MonthYearColor="#fe711a";//Font Color of Month and Year in Calendar header.
var WeekHeadColor="#bdccd8";//Background Color in Week header.
var SundayColor="#7aa5c7";//Background color of Sunday.
var SaturdayColor="#c3daeb";//Background color of Saturday.
var WeekDayColor="#edf0f6";//Background color of weekdays.
var FontColor="#000000";//color of font in Calendar day cell.
var TodayColor="#fe711a";//Background color of today.
var SelDateColor="fcd8ea";//Backgrond color of selected date in textbox.
var YrSelColor="#fe711a";//color of font of Year selector.
var MthSelColor="#fe711a";//color of font of Month selector if "MonthSelector" is "arrow".
var ThemeBg="assets/images/calendarbg.gif";//Background image of Calendar window.
var PrecedeZero=true;//Preceding zero [true|false]
var MondayFirstDay=true;//true:Use Monday as first day; false:Sunday as first day. [true|false]  //added in version 1.7
//end Configurable parameters
//end Global variable

function NewCal(pCtrl,pFormat,pShowTime,pTimeMode,pScroller,pFormName)
{
        FormName=pFormName;
		Cal=new Calendar(dtToday);
        if ((pShowTime!=null) && (pShowTime))
        {
                Cal.ShowTime=true;
                if ((pTimeMode!=null) &&((pTimeMode=='12')||(pTimeMode=='24')))
                {
                        TimeMode=pTimeMode;
                }               
        }       
        if (pCtrl!=null)
                Cal.Ctrl=pCtrl;
        if (pFormat!=null)
                Cal.Format=pFormat.toUpperCase();
        if (pScroller!=null)
        {
                if (pScroller.toUpperCase()=="ARROW")
                {
                        Cal.Scroller="ARROW";
                }
    }               
       
        exDateTime=document.getElementById(pCtrl).value;
        if (exDateTime!="")//Parse existing Date String
        {
                var Sp1;//Index of Date Separator 1
                var Sp2;//Index of Date Separator 2
                var tSp1;//Index of Time Separator 1
                var tSp1;//Index of Time Separator 2
                var strMonth;
                var strDate;
                var strYear;
                var intMonth;
                var YearPattern;
                var strHour;
                var strMinute;
                var strSecond;
                var winHeight;
                //parse month
                Sp1=exDateTime.indexOf(DateSeparator,0)
                Sp2=exDateTime.indexOf(DateSeparator,(parseInt(Sp1)+1));
               
                if ((Cal.Format.toUpperCase()=="DDMMYYYY") || (Cal.Format.toUpperCase()=="DDMMMYYYY"))
                {
                        strMonth=exDateTime.substring(Sp1+1,Sp2);
                        strDate=exDateTime.substring(0,Sp1);
                        strYear=exDateTime.substring(Sp2+1,Sp2+5);
                }
                else if ((Cal.Format.toUpperCase()=="MMDDYYYY") || (Cal.Format.toUpperCase()=="MMMDDYYYY"))
                {
                        strMonth=exDateTime.substring(0,Sp1);
                        strDate=exDateTime.substring(Sp1+1,Sp2);
                        strYear=exDateTime.substring(Sp2+1,Sp2+5);

                }
                else if ((Cal.Format.toUpperCase()=="YYYYMMDD") || (Cal.Format.toUpperCase()=="YYYYMMMDD"))
                {
                        strMonth=exDateTime.substring(Sp1+1,Sp2);
                        strDate=exDateTime.substring(Sp2+1,Sp2+3);
                        strYear=exDateTime.substring(0,Sp1);
                }

                if (isNaN(strMonth))
                        intMonth=Cal.GetMonthIndex(strMonth);
                else
                        intMonth=parseInt(strMonth,10)-1;       
                if ((parseInt(intMonth,10)>=0) && (parseInt(intMonth,10)<12))
                        Cal.Month=intMonth;
                //end parse month
                //parse Date
                if ((parseInt(strDate,10)<=Cal.GetMonDays()) && (parseInt(strDate,10)>=1))
                        Cal.Date=strDate;
                //end parse Date
                //parse year
                YearPattern=/^\d{4}$/;
                if (YearPattern.test(strYear))
                        Cal.Year=parseInt(strYear,10);
                //end parse year
                //parse time
                if (Cal.ShowTime==true)
                {
                        //parse AM or PM
                        if (TimeMode==12)
                        {
                                strAMPM=exDateTime.substring(exDateTime.length-2,exDateTime.length)
                                Cal.AMorPM=strAMPM;
                        }
                        tSp1=exDateTime.indexOf(":",0)
                        tSp2=exDateTime.indexOf(":",(parseInt(tSp1)+1));
                        strHour=exDateTime.substring(tSp1,(tSp1)-2);
                        Cal.SetHour(strHour);
                        strMinute=exDateTime.substring(tSp1+1,tSp2);
                        Cal.SetMinute(strMinute);
                        strSecond=exDateTime.substring(tSp2+1,tSp2+3);
                        Cal.SetSecond(strSecond);
                }       
        }
        selDate=new Date(Cal.Year,Cal.Month,Cal.Date);//version 1.7
        winCal=window.open("","DateTimePicker","toolbar=0,status=0,menubar=0,fullscreen=no,width=200,height=245,resizable=0,top="+cnTop+",left="+cnLeft);
        docCal=winCal.document;
        RenderCal();
        winCal.focus();
}

function RenderCal()
{
        var vCalHeader;
        var vCalData;
        var vCalTime;
        var i;
        var j;
        var SelectStr;
        var vDayCount=0;
        var vFirstDay;

        docCal.open();
        docCal.writeln("<html><head><title>"+WindowTitle+"</title>");
        docCal.writeln("<script>var winMain=window.opener;</script>");//winMain is window that open calendar window.
        docCal.writeln("</head><body background='"+ThemeBg+"' link="+FontColor+" vlink="+FontColor+"><form name='Calendar'>");

        vCalHeader="<table border=1 bordercolor=\"#FFFFFF\" bgcolor=\"#FFFFFF\" cellpadding=1 cellspacing=1 width='100%' align=\"center\" valign=\"top\">\n";
        //Table for Month & Year Selector
        vCalHeader+="<tr>\n<td colspan='7'><table border=0 width='100%' cellpadding=0 cellspacing=0><tr>\n";

        //******************Month selector in dropdown list************************
        if (Cal.Scroller=="DROPDOWN")
        {
                vCalHeader+="<td align='left'><select name=\"MonthSelector\" onChange=\"javascript:winMain.Cal.SwitchMth(this.selectedIndex);winMain.RenderCal();\">\n";
                for (i=0;i<12;i++)
                {
                        if (i==Cal.Month)
                                SelectStr="Selected";
                        else
                                SelectStr="";       
                        vCalHeader+="<option "+SelectStr+" value >"+MonthName[i]+"\n";
                }
                vCalHeader+="</select></td>";
                //Year selector
                vCalHeader+="\n<td align='right'><a href=\"javascript:winMain.Cal.DecYear();winMain.RenderCal()\" style=\"text-decoration:none\"><b><font color=\""+YrSelColor+"\"><</font></b></a><font face=\"Arial\" color=\""+YrSelColor+"\" size=2><b> "+Cal.Year+" </b></font><a href=\"javascript:winMain.Cal.IncYear();winMain.RenderCal()\" style=\"text-decoration:none\"><b><font color=\""+YrSelColor+"\">></font></b></a></td></tr></table></td>\n";       
                vCalHeader+="</tr>";
        }
        //******************End Month selector in dropdown list*********************
        //******************Month selector in arrow*********************************
        else if (Cal.Scroller=="ARROW")
        {
                vCalHeader+="<td align='center'><a href='javascript:winMain.Cal.DecYear();winMain.RenderCal();'>- </a></td>";//Year scroller (decrease 1 year)
                vCalHeader+="<td align='center'><a href='javascript:winMain.Cal.DecMonth();winMain.RenderCal();'>&lt;</a></td>";//Month scroller (decrease 1 month)
                vCalHeader+="<td align='center' width='70%'><font face='Arial' size='2' color='"+YrSelColor+"'><b>"+Cal.GetMonthName(ShowLongMonth)+" "+Cal.Year+"</b></font></td>"//Month and Year
                vCalHeader+="<td align='center'><a href='javascript:winMain.Cal.IncMonth();winMain.RenderCal();'>&gt;</a></td>";//Month scroller (increase 1 month)
                vCalHeader+="<td align='center'><a href='javascript:winMain.Cal.IncYear();winMain.RenderCal();'>+</a></td>";//Year scroller (increase 1 year)
                vCalHeader+="</tr></table></td></tr>"
        }
    //******************End Month selector in arrow******************************
        //Calendar header shows Month and Year
        if ((ShowMonthYear)&&(Cal.Scroller=="DROPDOWN"))
                vCalHeader+="<tr><td colspan='7'><font face='Arial' size='2' align='center' color='"+MonthYearColor+"'><b>"+Cal.GetMonthName(ShowLongMonth)+" "+Cal.Year+"</b></font></td></tr>\n";
        //Week day header
        vCalHeader+="<tr bgcolor="+WeekHeadColor+">";
        var WeekDayName=new Array();//Added version 1.7
        if (MondayFirstDay==true)
                WeekDayName=WeekDayName2;
        else
                WeekDayName=WeekDayName1;
        for (i=0;i<7;i++)
        {
                vCalHeader+="<td align='center'><font face='Arial' size='2'>"+WeekDayName[i].substr(0,WeekChar)+"</font></td>";
        }
       
        vCalHeader+="</tr>";       
        docCal.write(vCalHeader);
        //Calendar detail
        CalDate=new Date(Cal.Year,Cal.Month);
        CalDate.setDate(1);
        vFirstDay=CalDate.getDay();
        //Added version 1.7
        if (MondayFirstDay==true)
        {
                vFirstDay-=1;
                if (vFirstDay==-1)
                        vFirstDay=6;
        }
        //Added version 1.7
        vCalData="<tr>";
        for (i=0;i<vFirstDay;i++)
        {
                vCalData=vCalData+GenCell();
                vDayCount=vDayCount+1;
        }
        //Added version 1.7
        for (j=1;j<=Cal.GetMonDays();j++)
        {
                var strCell;
                vDayCount=vDayCount+1;
                if ((j==dtToday.getDate())&&(Cal.Month==dtToday.getMonth())&&(Cal.Year==dtToday.getFullYear()))
                        strCell=GenCell(j,true,TodayColor);//Highlight today's date
                else
                {
                        if ((j==selDate.getDate())&&(Cal.Month==selDate.getMonth())&&(Cal.Year==selDate.getFullYear()))//modified version 1.7
                        {
                                strCell=GenCell(j,true,SelDateColor);
                        }
                        else
                        {       
                                if (MondayFirstDay==true)
                                {
                                        if (vDayCount%7==0)
                                                strCell=GenCell(j,false,SundayColor);
                                        else if ((vDayCount+1)%7==0)
                                                strCell=GenCell(j,false,SaturdayColor);
                                        else
                                                strCell=GenCell(j,null,WeekDayColor);                                       
                                }
                                else
                                {
                                        if (vDayCount%7==0)
                                                strCell=GenCell(j,false,SaturdayColor);
                                        else if ((vDayCount+6)%7==0)
                                                strCell=GenCell(j,false,SundayColor);
                                        else
                                                strCell=GenCell(j,null,WeekDayColor);
                                }
                        }               
                }                                               
                vCalData=vCalData+strCell;

                if((vDayCount%7==0)&&(j<Cal.GetMonDays()))
                {
                        vCalData=vCalData+"</tr>\n<tr>";
                }
        }
        docCal.writeln(vCalData);       
        //Time picker
        if (Cal.ShowTime)
        {
                var showHour;
                showHour=Cal.getShowHour();       
                vCalTime="<tr>\n<td colspan='7' align='center'>";
                vCalTime+="<input type='text' name='hour' maxlength=2 size=1 style=\"WIDTH: 22px\" value="+showHour+" onchange=\"javascript:winMain.Cal.SetHour(this.value)\">";
                vCalTime+=" : ";
                vCalTime+="<input type='text' name='minute' maxlength=2 size=1 style=\"WIDTH: 22px\" value="+Cal.Minutes+" onchange=\"javascript:winMain.Cal.SetMinute(this.value)\">";
                vCalTime+=" : ";
                vCalTime+="<input type='text' name='second' maxlength=2 size=1 style=\"WIDTH: 22px\" value="+Cal.Seconds+" onchange=\"javascript:winMain.Cal.SetSecond(this.value)\">";
                if (TimeMode==12)
                {
                        var SelectAm =(Cal.AMorPM=="AM")? "Selected":"";
                        var SelectPm =(Cal.AMorPM=="PM")? "Selected":"";

                        vCalTime+="<select name=\"ampm\" onchange=\"javascript:winMain.Cal.SetAmPm(this.options[this.selectedIndex].value);\">";
                        vCalTime+="<option "+SelectAm+" value=\"AM\">AM</option>";
                        vCalTime+="<option "+SelectPm+" value=\"PM\">PM<option>";
                        vCalTime+="</select>";
                }       
                vCalTime+="\n</td>\n</tr>";
                docCal.write(vCalTime);
        }       
        //end time picker
        docCal.writeln("\n</table>");
        docCal.writeln("</form></body></html>");
        docCal.close();
}

function GenCell(pValue,pHighLight,pColor)//Generate table cell with value
{
        var PValue;
        var PCellStr;
        var vColor;
        var vHLstr1;//HighLight string
        var vHlstr2;
        var vTimeStr;
		var vSubmit;
       
        if (pValue==null)
                PValue="";
        else
                PValue=pValue;
       
        if (pColor!=null)
                vColor="bgcolor=\""+pColor+"\"";
        else
                vColor="";       
        if ((pHighLight!=null)&&(pHighLight))
                {vHLstr1="color='red'><b>";vHLstr2="</b>";}
        else
                {vHLstr1=">";vHLstr2="";}       
       
        if (Cal.ShowTime){
                vTimeStr="winMain.document.getElementById('"+Cal.Ctrl+"').value+=' '+"+"winMain.Cal.getShowHour()"+"+':'+"+"winMain.Cal.Minutes"+"+':'+"+"winMain.Cal.Seconds";
                if (TimeMode==12)
                        vTimeStr+="+' '+winMain.Cal.AMorPM";
        } else
                vTimeStr="";               
        if(FormName!=null)
				vSubmit=";javascript:winMain.document.getElementById('"+FormName+"').submit()";
		else
				vSubmit="";
		PCellStr="<td "+vColor+" width="+CellWidth+" align='center'><font face='Arial' size='2'"+vHLstr1+"<a href=\"javascript:winMain.document.getElementById('"+Cal.Ctrl+"').value='"+Cal.FormatDate(PValue)+"'"+vSubmit+vTimeStr+";window.close();\" style=\"text-decoration:none\">"+PValue+"</a>"+vHLstr2+"</font></td>";
        return PCellStr;
}

function Calendar(pDate,pCtrl)
{
        //Properties
        this.Date=pDate.getDate();//selected date
        this.Month=pDate.getMonth();//selected month number
        this.Year=pDate.getFullYear();//selected year in 4 digits
        this.Hours=pDate.getHours();       
       
        if (pDate.getMinutes()<10)
                this.Minutes="0"+pDate.getMinutes();
        else
                this.Minutes=pDate.getMinutes();
       
        if (pDate.getSeconds()<10)
                this.Seconds="0"+pDate.getSeconds();
        else               
                this.Seconds=pDate.getSeconds();
               
        this.MyWindow=winCal;
        this.Ctrl=pCtrl;
        this.Format="ddMMyyyy";
        this.Separator=DateSeparator;
        this.ShowTime=false;
        this.Scroller="DROPDOWN";
        if (pDate.getHours()<12)
                this.AMorPM="AM";
        else
                this.AMorPM="PM";       
}

function GetMonthIndex(shortMonthName)
{
        for (i=0;i<12;i++)
        {
                if (MonthName[i].substring(0,3).toUpperCase()==shortMonthName.toUpperCase())
                {        return i;}
        }
}
Calendar.prototype.GetMonthIndex=GetMonthIndex;

function IncYear()
{        Cal.Year++;}
Calendar.prototype.IncYear=IncYear;

function DecYear()
{        Cal.Year--;}
Calendar.prototype.DecYear=DecYear;

function IncMonth()
{       
        Cal.Month++;
        if (Cal.Month>=12)
        {
                Cal.Month=0;
                Cal.IncYear();
        }
}
Calendar.prototype.IncMonth=IncMonth;

function DecMonth()
{       
        Cal.Month--;
        if (Cal.Month<0)
        {
                Cal.Month=11;
                Cal.DecYear();
        }
}
Calendar.prototype.DecMonth=DecMonth;
       
function SwitchMth(intMth)
{        Cal.Month=intMth;}
Calendar.prototype.SwitchMth=SwitchMth;

function SetHour(intHour)
{       
        var MaxHour;
        var MinHour;
        if (TimeMode==24)
        {        MaxHour=23;MinHour=0}
        else if (TimeMode==12)
        {        MaxHour=12;MinHour=1}
        else
        alert("TimeMode can only be 12 or 24");               
        var HourExp=new RegExp("^\\d\\d");
        var SingleDigit=new RegExp("^\\d");
        if (SingleDigit.test(intHour))
                intHour="0"+intHour;
        if (HourExp.test(intHour) && (parseInt(intHour,10)<=MaxHour) && (parseInt(intHour,10)>=MinHour))
        {       
                if ((TimeMode==12) && (Cal.AMorPM=="PM"))
                {
                        if (parseInt(intHour,10)==12)
                                Cal.Hours=12;
                        else       
                                Cal.Hours=parseInt(intHour,10)+12;
                }       
                else if ((TimeMode==12) && (Cal.AMorPM=="AM"))
                {
                        if (intHour==12)
                                intHour-=12;
                        Cal.Hours=parseInt(intHour,10);
                }
                else if (TimeMode==24)
                        Cal.Hours=parseInt(intHour,10);       
        }
}
Calendar.prototype.SetHour=SetHour;

function SetMinute(intMin)
{
        var MinExp=new RegExp("^\\d\\d$");
        if (MinExp.test(intMin) && (intMin<60))
                Cal.Minutes=intMin;
}
Calendar.prototype.SetMinute=SetMinute;

function SetSecond(intSec)
{       
        var SecExp=new RegExp("^\\d\\d$");
        if (SecExp.test(intSec) && (intSec<60))
                Cal.Seconds=intSec;
}
Calendar.prototype.SetSecond=SetSecond;

function SetAmPm(pvalue)
{
        this.AMorPM=pvalue;
        if (pvalue=="PM")
        {
                this.Hours=(parseInt(this.Hours,10))+12;
                if (this.Hours==24)
                        this.Hours=12;
        }       
        else if (pvalue=="AM")
                this.Hours-=12;       
}
Calendar.prototype.SetAmPm=SetAmPm;

function getShowHour()
{
        var finalHour;
    if (TimeMode==12)
    {
            if (parseInt(this.Hours,10)==0)
                {
                        this.AMorPM="AM";
                        finalHour=parseInt(this.Hours,10)+12;       
                }
                else if (parseInt(this.Hours,10)==12)
                {
                        this.AMorPM="PM";
                        finalHour=12;
                }               
                else if (this.Hours>12)
                {
                        this.AMorPM="PM";
                        if ((this.Hours-12)<10)
                                finalHour="0"+((parseInt(this.Hours,10))-12);
                        else
                                finalHour=parseInt(this.Hours,10)-12;       
                }
                else
                {
                        this.AMorPM="AM";
                        if (this.Hours<10)
                                finalHour="0"+parseInt(this.Hours,10);
                        else
                                finalHour=this.Hours;       
                }
        }
        else if (TimeMode==24)
        {
                if (this.Hours<10)
                        finalHour="0"+parseInt(this.Hours,10);
                else       
                        finalHour=this.Hours;
        }       
        return finalHour;       
}                               
Calendar.prototype.getShowHour=getShowHour;               

function GetMonthName(IsLong){
        var Month=MonthName[this.Month];
        if (IsLong)
                return Month;
        else
                return Month.substr(0,3);
}
Calendar.prototype.GetMonthName=GetMonthName;

function GetMonDays()//Get number of days in a month
{
        var DaysInMonth=[31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
        if (this.IsLeapYear())
        {
                DaysInMonth[1]=29;
        }       
        return DaysInMonth[this.Month];       
}
Calendar.prototype.GetMonDays=GetMonDays;

function IsLeapYear()
{
        if ((this.Year%4)==0)
        {
                if ((this.Year%100==0) && (this.Year%400)!=0)
                {
                        return false;
                }
                else
                {
                        return true;
                }
        }
        else
        {
                return false;
        }
}
Calendar.prototype.IsLeapYear=IsLeapYear;

function FormatDate(pDate)
{
        var MonthDigit=this.Month+1;
        if (PrecedeZero==true)
        {
                if (pDate<10)
                        pDate="0"+pDate;
                if (MonthDigit<10)
                        MonthDigit="0"+MonthDigit;
        }

        if (this.Format.toUpperCase()=="DDMMYYYY")
                return (pDate+DateSeparator+MonthDigit+DateSeparator+this.Year);
        else if (this.Format.toUpperCase()=="DDMMMYYYY")
                return (pDate+DateSeparator+this.GetMonthName(false)+DateSeparator+this.Year);
        else if (this.Format.toUpperCase()=="MMDDYYYY")
                return (MonthDigit+DateSeparator+pDate+DateSeparator+this.Year);
        else if (this.Format.toUpperCase()=="MMMDDYYYY")
                return (this.GetMonthName(false)+DateSeparator+pDate+DateSeparator+this.Year);
        else if (this.Format.toUpperCase()=="YYYYMMDD")
                return (this.Year+DateSeparator+MonthDigit+DateSeparator+pDate);
        else if (this.Format.toUpperCase()=="YYYYMMMDD")
                return (this.Year+DateSeparator+this.Month+DateSeparator+pDate);       
        else                                       
                return (pDate+DateSeparator+(this.Month+1)+DateSeparator+this.Year);
}
Calendar.prototype.FormatDate=FormatDate; 
