//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: 0.8


//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 winCal;


var dtToday=new Date();


var Cal;


var docCal;


var MonthName=["January", "February", "March", "April", "May", "June","July", 


	"August", "September", "October", "November", "December"];


var WeekDayName=["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"];	


var exDateTime;//Existing Date and Time





//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="#cc0033";//Font Color of Month and Year in Calendar header.


var WeekHeadColor="#0099CC";//Background Color in Week header.


var SundayColor="#6699FF";//Background color of Sunday.


var SaturdayColor="#CCCCFF";//Background color of Saturday.


var WeekDayColor="white";//Background color of weekdays.


var FontColor="blue";//color of font in Calendar day cell.


var TodayColor="#FFFF33";//Background color of today.


var SelDateColor="#FFFF99";//Backgrond color of selected date in textbox.


var YrSelColor="#cc0033";//color of font of Year selector.


var ThemeBg="";//Background image of Calendar window.


//end Configurable parameters


//end Global variable





function NewCal(pCtrl,pFormat,pShowTime,pTimeMode)


{


	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();


	


	exDateTime=document.getElementById(pCtrl).value;


	if (exDateTime!="")//Parse 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;


		//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);


		}


		else if ((Cal.Format.toUpperCase()=="MMDDYYYY") || (Cal.Format.toUpperCase()=="MMMDDYYYY"))


		{


			strMonth=exDateTime.substring(0,Sp1);


			strDate=exDateTime.substring(Sp1+1,Sp2);


		}


		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


		strYear=exDateTime.substring(Sp2+1,Sp2+5);


		YearPattern=/^\d{4}$/;


		if (YearPattern.test(strYear))


			Cal.Year=parseInt(strYear,10);


		//end parse year


		//parse time


		if (Cal.ShowTime==true)


		{


			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);


		}	


	}


	winCal=window.open("","DateTimePicker","toolbar=0,status=0,menubar=0,fullscreen=no,width=195,height=245,resizable=0,top="+cnTop+",left="+cnLeft);


	docCal=winCal.document;


	RenderCal();


}





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>");


	docCal.writeln("</head><body background='"+ThemeBg+"' link="+FontColor+" vlink="+FontColor+"><form name='Calendar'>");





	vCalHeader="<table border=1 cellpadding=1 cellspacing=1 width='100%' align=\"center\" valign=\"top\">\n";


	//Month Selector


	vCalHeader+="<tr>\n<td colspan='7'><table border=0 width='100%' cellpadding=0 cellspacing=0><tr><td align='left'>\n";


	vCalHeader+="<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()\"><b><font color=\""+YrSelColor+"\"><</font></b></a><font face=\"Verdana\" color=\""+YrSelColor+"\" size=2><b> "+Cal.Year+" </b></font><a href=\"javascript:winMain.Cal.IncYear();winMain.RenderCal()\"><b><font color=\""+YrSelColor+"\">></font></b></a></td></tr></table></td>\n";	


	vCalHeader+="</tr>";


	//Calendar header shows Month and Year


	if (ShowMonthYear)


		vCalHeader+="<tr><td colspan='7'><font face='Verdana' size='2' align='center' color='"+MonthYearColor+"'><b>"+Cal.GetMonthName(ShowLongMonth)+" "+Cal.Year+"</b></font></td></tr>\n";


	//Week day header


	vCalHeader+="<tr bgcolor="+WeekHeadColor+">";



	for (i=0;i<7;i++)


	{


		vCalHeader+="<td align='center'><font face='Verdana' 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();


	vCalData="<tr>";


	for (i=0;i<vFirstDay;i++)


	{


		vCalData=vCalData+GenCell();


		vDayCount=vDayCount+1;


	}


	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==Cal.Date)


			{


				strCell=GenCell(j,true,SelDateColor);


			}


			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 =(parseInt(Cal.Hours,10)<12)? "Selected":"";


			var SelectPm =(parseInt(Cal.Hours,10)>=12)? "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;


	


	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="";		


	PCellStr="<td "+vColor+" width="+CellWidth+" align='center'><font face='verdana' size='2'"+vHLstr1+"<a href=\"javascript:winMain.document.getElementById('"+Cal.Ctrl+"').value='"+Cal.FormatDate(PValue)+"';"+vTimeStr+";window.close();\">"+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;


	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 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$");


	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)


{


	if (this.Format.toUpperCase()=="DDMMYYYY")


		return (pDate+DateSeparator+(this.Month+1)+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 ((this.Month+1)+DateSeparator+pDate+DateSeparator+this.Year);


	else if (this.Format.toUpperCase()=="MMMDDYYYY")


		return (this.GetMonthName(false)+DateSeparator+pDate+DateSeparator+this.Year);			


}


Calendar.prototype.FormatDate=FormatDate;