//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=["JAN", "FEB", "MAR", "APR", "MAY", "JUN","JUL", "AUG", "SEP", "OCT", "NOV", "DEC"];
var WeekDayName=["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"];	
var exDateTime;//Existing Date and Time

//Configurable parameters
var w = screen.availWidth;
var h = screen.availHeight;
var cnLeft = (w-425)/2
var cnTop = (h-360)/2;
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=false;//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="white";//Background color of Sunday.
var SaturdayColor="white";//Background color of Saturday. 
var WeekDayColor="white";//Background color of weekdays.
var FontColor="#666666";//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();
	
	winCal=window.open("","DateTimePicker","toolbar=0,status=0,menubar=0,fullscreen=no,width=325,height=125,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("<style type=text/css> body { margin-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; background-color: #e6e6e6 }");
	docCal.writeln(" .black10 { color: #000000; font-weight: normal; font-size: 10px; font-family: verdana, arial, helvetica; text-decoration: none; cursor: default }");
	docCal.writeln(" .grey9 { color: #666666; font-weight: normal; font-size: 9px; font-family: verdana, arial, helvetica; text-decoration: none; cursor: default }");
	docCal.writeln(" a.grey9s { color: #666666; font-weight: normal; font-size: 9px; font-family: verdana, arial, helvetica; text-decoration: none }");
	docCal.writeln(" a.grey9s:hover { color: #000000; font-weight: normal; font-size: 9px; font-family: verdana, arial, helvetica; text-decoration: underline }");
	docCal.writeln(" .brick11 { color: #CC3300; font-weight: normal; font-size: 11px; font-family: verdana, arial, helvetica; text-decoration: none; }");
	docCal.writeln(" .cellover { color: #000000; background-color: #DFDFDF; font-size: 9px; font-family: verdana, arial, helvetica; text-decoration: none }"); 
	docCal.writeln(" .brick11g { color: #CC3300; font-weight: bold; font-size: 11px; font-family: verdana, arial, helvetica; text-decoration: none; background-color: #E6E6E6; }");
	docCal.writeln(" </style>");	
	docCal.writeln("</head> <body onLoad=\"window.focus()\">");
	vCalHeader="<table border=0 cellpadding=1 cellspacing=1 bgcolor=\"#999999\" width='100%' align=\"center\" valign=\"top\"><form name=\"Calendar\">\n";
//Month Selector
	vCalHeader+="<tr bgcolor=\"#E6E6E6\">\n<td colspan='7'><table border=0 width='100%' cellpadding=0 cellspacing=0 height=25><tr><td align='center' class='grey9'>\n";
	//vCalHeader+="<select name=\"MonthSelector\" class=\"brick11g\" onChange=\"javascript:winMain.Cal.SwitchMth(this.selectedIndex);winMain.RenderCal();\">\n";
  
    var mYr = Cal.Year - 1;
	var pYr = Cal.Year + 1;
	var vSelStr = '';
	var stMonth = dtToday.getMonth();

	
	for (i=0;i<12;i++)
	{
		
		if(i+stMonth > 11) {j=i+stMonth-12;z=1;} else {j=i+stMonth;z=0;}

        if (j==Cal.Month) {
			SelectClass='class=\"brick11g\"';
			vSelStr = "<span class=\"brick11g\">"+MonthName[j]+"</span>&nbsp;&nbsp;";
		                  }
		else {
			SelectClass='class=\"grey9s\"';
			vSelStr = "<a href=\"javascript:winMain.Cal.SwitchMth("+[j]+");";
			if (Cal.Year==dtToday.getFullYear()&&z==1) {vSelStr += "winMain.Cal.IncYear();";}
			if (Cal.Year!==dtToday.getFullYear()&&z==0) {vSelStr += "winMain.Cal.DecYear();";}
			vSelStr += "winMain.RenderCal();\" "+SelectClass+">"+MonthName[j]+"</a>&nbsp;&nbsp";	
		     }
	 vCalHeader+=vSelStr;
	}
	//vCalHeader+="</td>";
	//Year selector
	vCalHeader+="</td></tr></table></td>\n";	
	vCalHeader+="</tr>";
	vCalHeader+="<tr bgcolor=\"#D7E1F5\">";
	for (i=0;i<7;i++)
	{
		vCalHeader+="<td align='center' class=\"black10\">"+WeekDayName[i].substr(0,WeekChar)+"</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+GenCell2();
		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>";
		}
	}    
		if (vDayCount<=35)
		{
		vLastDay = 34;
		} else
		{
		vLastDay = 41;
		}		
		for (i=vDayCount;i<=vLastDay;i++)
	{
		vCalData=vCalData+GenCell2();
	}	
	docCal.writeln(vCalData);	
	docCal.writeln("\n</form></table>");
	docCal.writeln("</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;

	
	PCellStr="<td bgcolor=\"white\" width="+CellWidth+" align='center' onClick=\"javascript:winMain.document.getElementById('"+Cal.Ctrl+"').value='"+Cal.FormatDate(PValue)+"';window.close();\" class=\"grey9\" onMouseOver=\"this.className='cellover'; this.style.cursor='pointer'\"; onMouseOut=\"this.className='grey9'\">"+PValue+"</td>";
	return PCellStr;
}

function GenCell2(pValue,pHighLight,pColor)//Generate table cell with value
{
	var PValue;
	var PCellStr;
	PCellStr="<td bgcolor=\"#e6e6e6\" width="+CellWidth+" class=\"grey9\">&nbsp;</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 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 MoZero
if((this.Month+1) < 10) { MoZero = "0" + (this.Month+1); }
else {MoZero = (this.Month+1);}
if(pDate < 10) { DayZero = "0" + pDate; }
else {DayZero = pDate;}
return (DayZero+DateSeparator+MoZero+DateSeparator+this.Year);
}
Calendar.prototype.FormatDate=FormatDate;	
