//Javascript name: My Date Time Picker
//Date created: 16-Nov-2003 23:19
//Creator: TengYong Ng
//Website: http://www.rainforestnet.com
//Copyright (c) 2003 TengYong Ng
//FileName: DateTimePicker_css.js
//Version: 2.1.2
// Note: Permission given to use and modify this script in ANY kind of applications if
//       header lines are left unchanged.
//Permission is granted to redistribute and modify this javascript under the terms of the GNU General Public License 3.0.
//New Css style version added by Yvan Lavoie (Québec, Canada) 29-Jan-2009



//Global variables

var winCal;
var dtToday;
var Cal;
var MonthName;
var WeekDayName1;
var WeekDayName2;
var exDateTime;//Existing Date and Time
var selDate;//selected date. version 1.7
var calSpanID = "calBorder"; // span ID 
var domStyle=null; // span DOM object with style 
var cnLeft="0";//left coordinate of calendar span
var cnTop="0";//top coordinate of calendar span
var xpos=0; // mouse x position
var ypos=0; // mouse y position
var calHeight=0; // calendar height
var CalWidth=208;// calendar width
var CellWidth=30;// width of day cell.
var TimeMode=24;// TimeMode value. 12 or 24
var StartYear =1990; //First Year in drop down year selection
var EndYear = 5; //End Year offset. i.e. Current Year + 5


//Configurable parameters

//var WindowTitle="DateTime Picker";//Date Time Picker title.

var SpanBorderColor = "#FFFFFF";//span border color 
var SpanBgColor = "#FFFFFF";//span background color
var WeekChar=2;//number of character for week day. if 2 then Mo,Tu,We. if 3 then Mon,Tue,Wed.
var DateSeparator="-";//Date Separator, you can change it to "-" if you want.
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="#18861B";//var WeekHeadColor="#18861B";//Background Color in Week header.
var SundayColor="#C0F64F";//var SundayColor="#C0F64F";//Background color of Sunday.
var SaturdayColor="#C0F64F";//Background color of Saturday.
var WeekDayColor="#FFCD03";//Background color of weekdays.
var FontColor="blue";//color of font in Calendar day cell.
var TodayColor="#FFFF33";//var TodayColor="#FFFF33";//Background color of today.
var SelDateColor = "#8DD53C";//var SelDateColor="#8DD53C";//Backgrond color of selected date in textbox.
var YrSelColor="#cc0033";//color of font of Year selector.
var MthSelColor="#cc0033";//color of font of Month selector if "MonthSelector" is "arrow".
var HoverColor="#E0FF38"; //color when mouse move over.
var DisableColor="#C4B11F"; //color of disabled cell.
var ThemeBg="";//Background image of Calendar window.
var CalBgColor="";//Background color 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
var UseImageFiles = true;//Use image files with "arrows" and "close" button
var DisableBeforeToday = false; //Make date before today unclickable.

//use the Month and Weekday in your preferred language.

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"];


//end Configurable parameters

//end Global variable

// Default events configuration

document.onmousedown = pickIt;
document.onmousemove = dragIt;
document.onmouseup = dropIt;

function NewCssCal(pCtrl,pFormat,pScroller,x,y,pShowTime,pTimeMode,pHideSeconds) {
    // get current date and time

    dtToday = new Date();
    Cal=new Calendar(dtToday);

    if ((pShowTime!=null) && (pShowTime)) {
        Cal.ShowTime=true;
        if ((pTimeMode!=null) &&((pTimeMode=='12')||(pTimeMode=='24')))	{
            TimeMode=pTimeMode;
        }

        else TimeMode='24';

        if (pHideSeconds!=null)
        {
            if (pHideSeconds)
            {
                Cal.ShowSeconds=false;
            }
            else
            {
                Cal.ShowSeconds=true;
            }

        }

        else
        {
            Cal.ShowSeconds=false;
        }    

    }

    if (pCtrl!=null)

        Cal.Ctrl=pCtrl;


    if (pFormat!=null)
        Cal.Format=pFormat.toUpperCase();
    else 
        Cal.Format="MMDDYYYY";

    if (pScroller!=null) {
        if (pScroller.toUpperCase()=="ARROW") {
            Cal.Scroller="ARROW";
        }
        else {
            Cal.Scroller="DROPDOWN";
        }
    }

    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));
        var offset=parseInt(Cal.Format.toUpperCase().lastIndexOf("M"))-parseInt(Cal.Format.toUpperCase().indexOf("M"))-1;

        if ((Cal.Format.toUpperCase()=="DDMMYYYY") || (Cal.Format.toUpperCase()=="DDMMMYYYY")) {
            if (DateSeparator=="") {
                strMonth=exDateTime.substring(2,4+offset);
                strDate=exDateTime.substring(0,2);
                strYear=exDateTime.substring(4+offset,8+offset);
            }
            else {
                if(exDateTime.indexOf("D*") != -1) {   //DTG
                    strMonth = exDateTime.substring(8, 11);
                    strDate  = exDateTime.substring(0, 2);
                    strYear  = "20" + exDateTime.substring(11, 13);  //Hack, nur für Jahreszahlen ab 2000
					
                } else {
                    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")) {

            if (DateSeparator=="") {
                strMonth=exDateTime.substring(0,2+offset);
                strDate=exDateTime.substring(2+offset,4+offset);
                strYear=exDateTime.substring(4+offset,8+offset);
            }

            else {

                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")) {

            if (DateSeparator=="") {
                strMonth=exDateTime.substring(4,6+offset);
                strDate=exDateTime.substring(6+offset,8+offset);
                strYear=exDateTime.substring(0,4);
            }

            else {
                strMonth=exDateTime.substring(Sp1+1,Sp2);
                strDate=exDateTime.substring(Sp2+1,Sp2+3);
                strYear=exDateTime.substring(0,Sp1);
            }

        }

        else if ((Cal.Format.toUpperCase()=="YYMMDD") || (Cal.Format.toUpperCase()=="YYMMMDD")) {

            if (DateSeparator=="") {
                strMonth=exDateTime.substring(2,4+offset);
                strDate=exDateTime.substring(4+offset,6+offset);
                strYear=exDateTime.substring(0,2);
            }

            else {
                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));
            if (tSp1>0)	{

                strHour=exDateTime.substring(tSp1,(tSp1)-2);
                Cal.SetHour(strHour);

                strMinute=exDateTime.substring(tSp1+1,tSp1+3);
                Cal.SetMinute(strMinute);

                strSecond=exDateTime.substring(tSp2+1,tSp2+3);
                Cal.SetSecond(strSecond);

            } else if(exDateTime.indexOf("D*") != -1) {   //DTG
                strHour = exDateTime.substring(2, 4);
                Cal.SetHour(strHour);
                strMinute = exDateTime.substring(4, 6);
                Cal.SetMinute(strMinute);
				
            }
        }	

    }

    selDate=new Date(Cal.Year,Cal.Month,Cal.Date);//version 1.7
    RenderCssCal(true,x,y);
}


function RenderCssCal(bNewCal,x,y) {

    if (typeof bNewCal == "undefined" || bNewCal != true) {
        bNewCal = false;
    }
    var vCalHeader;
    var vCalData;
    var vCalTime="";

    var i;
    var j;

    var SelectStr;
    var vDayCount=0;
    var vFirstDay;

    calHeight = 0; // reset the window height on refresh

    // Set the default cursor for the calendar

    winCalData="<span style='cursor:auto;'>\n";

    if (ThemeBg==""){
        CalBgColor="bgcolor='"+WeekDayColor+"'"
        }
    vCalHeader="<table "+CalBgColor+" background='"+ThemeBg+"' border=1 cellpadding=1 cellspacing=1 width='200px' valign='top'>\n";

    //Table for Month & Year Selector

    vCalHeader+="<tr>\n<td colspan='7'>\n<table border='0' width='200px' cellpadding='0' cellspacing='0'>\n<tr>\n";
    //******************Month and Year selector in dropdown list************************

    if (Cal.Scroller=="DROPDOWN") {
        vCalHeader+="<td align='center'><select name=\"MonthSelector\" onChange=\"javascript:Cal.SwitchMth(this.selectedIndex);RenderCssCal();\">\n";
        for (i=0;i<12;i++) {
            if (i==Cal.Month)
                SelectStr="Selected";
            else
                SelectStr="";
            vCalHeader+="<option "+SelectStr+" value="+i+">"+MonthName[i]+"</option>\n";

        }

        vCalHeader+="</select></td>\n";
        //Year selector

        vCalHeader+="<td align='center'><select name=\"YearSelector\" size=\"1\" onChange=\"javascript:Cal.SwitchYear(this.value);RenderCssCal();\">\n";
        for (i = StartYear; i <= (dtToday.getFullYear() + EndYear);i++)	{
            if (i==Cal.Year)
                SelectStr="Selected";
            else
                SelectStr="";	
            vCalHeader+="<option "+SelectStr+" value="+i+">"+i+"</option>\n";

        }

        vCalHeader+="</select></td>\n";
        calHeight += 30;
    }

    //******************End Month and Year selector in dropdown list*********************

    //******************Month and Year selector in arrow*********************************

    else if (Cal.Scroller=="ARROW")	
    {	

        if (UseImageFiles)
        {
            vCalHeader+="<td><img onmousedown='javascript:Cal.DecYear();RenderCssCal();' src='images/cal_fastreverse.gif' width='13px' height='9' onmouseover='changeBorder(this, 0)' onmouseout='changeBorder(this, 1)' style='border:1px solid white'></td>\n";//Year scroller (decrease 1 year)
            vCalHeader+="<td><img onmousedown='javascript:Cal.DecMonth();RenderCssCal();' src='images/cal_reverse.gif' width='13px' height='9' onmouseover='changeBorder(this, 0)' onmouseout='changeBorder(this, 1)' style='border:1px solid white'></td>\n";//Month scroller (decrease 1 month)
            vCalHeader+="<td width='70%' class='calR'><font color='"+YrSelColor+"'>"+Cal.GetMonthName(ShowLongMonth)+" "+Cal.Year+"</font></td>\n"//Month and Year
            vCalHeader+="<td><img onmousedown='javascript:Cal.IncMonth();RenderCssCal();' src='images/cal_forward.gif' width='13px' height='9' onmouseover='changeBorder(this, 0)' onmouseout='changeBorder(this, 1)' style='border:1px solid white'></td>\n";//Month scroller (increase 1 month)
            vCalHeader+="<td><img onmousedown='javascript:Cal.IncYear();RenderCssCal();' src='images/cal_fastforward.gif' width='13px' height='9' onmouseover='changeBorder(this, 0)' onmouseout='changeBorder(this, 1)' style='border:1px solid white'></td>\n";//Year scroller (increase 1 year)

            calHeight += 22;
        }
        else
        {
            vCalHeader+="<td><span id='dec_year' title='reverse year' onmousedown='javascript:Cal.DecYear();RenderCssCal();' onmouseover='changeBorder(this, 0)' onmouseout='changeBorder(this, 1)' style='border:1px solid white; color:"+YrSelColor+"'>-</span></td>";//Year scroller (decrease 1 year)
            vCalHeader+="<td><span id='dec_month' title='reverse month' onmousedown='javascript:Cal.DecMonth();RenderCssCal();' onmouseover='changeBorder(this, 0)' onmouseout='changeBorder(this, 1)' style='border:1px solid white'>&lt;</span></td>\n";//Month scroller (decrease 1 month)
            vCalHeader+="<td width='70%' class='calR'><font color='"+YrSelColor+"'>"+Cal.GetMonthName(ShowLongMonth)+" "+Cal.Year+"</font></td>\n"//Month and Year
            vCalHeader+="<td><span id='inc_month' title='forward month' onmousedown='javascript:Cal.IncMonth();RenderCssCal();' onmouseover='changeBorder(this, 0)' onmouseout='changeBorder(this, 1)' style='border:1px solid white'>&gt;</span></td>\n";//Month scroller (increase 1 month)
            vCalHeader+="<td><span id='inc_year' title='forward year' onmousedown='javascript:Cal.IncYear();RenderCssCal();'  onmouseover='changeBorder(this, 0)' onmouseout='changeBorder(this, 1)' style='border:1px solid white; color:"+YrSelColor+"'>+</span></td>\n";//Year scroller (increase 1 year)
            calHeight += 22;
        }
    }

    vCalHeader+="</tr>\n</table>\n</td>\n</tr>\n"

    //******************End Month and Year selector in arrow******************************

    //Calendar header shows Month and Year
    if ((ShowMonthYear)&&(Cal.Scroller=="DROPDOWN")) {
        vCalHeader+="<tr><td colspan='7' class='calR'>\n<font color='"+MonthYearColor+"'>"+Cal.GetMonthName(ShowLongMonth)+" "+Cal.Year+"</font>\n</td></tr>\n";
        calHeight += 19;
    }

    //Week day header

    vCalHeader+="<tr><td colspan=\"7\"><table cellspacing=1><tr>\n";
    var WeekDayName=new Array();//Added version 1.7
    if (MondayFirstDay==true)
        WeekDayName=WeekDayName2;
    else
        WeekDayName=WeekDayName1;
    for (i=0;i<7;i++) {
        vCalHeader+="<td bgcolor="+WeekHeadColor+" width='"+CellWidth+"px' class='calTD'><font color='white'>"+WeekDayName[i].substr(0,WeekChar)+"</font></td>\n";
    }

    calHeight += 19;
    vCalHeader+="</tr>\n";	
    //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>";
    calHeight += 19;
    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;
        if((vDayCount%7==0)&&(j > 1)) {
            vCalData=vCalData+"\n<tr>";
        }

        vDayCount=vDayCount+1;
        //added versino 2.1.2
        if (DisableBeforeToday==true && ((j<dtToday.getDate())&&(Cal.Month==dtToday.getMonth())&&(Cal.Year==dtToday.getFullYear())||(Cal.Month<dtToday.getMonth())&&(Cal.Year==dtToday.getFullYear())||(Cal.Year<dtToday.getFullYear())))
            strCell=GenCell(j,false,DisableColor,false);//Before today's date is not clickable
		
        else 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+"\n</tr>";
            calHeight += 19;
        }
    }

    // finish the table proper

    if(!(vDayCount%7) == 0) {
        while(!(vDayCount % 7) == 0) {
            vCalData=vCalData+GenCell();
            vDayCount=vDayCount+1;
        }
    }

    vCalData=vCalData+"\n</table></td></tr>";


    //Time picker
    if (Cal.ShowTime) 
    {
        var showHour;
        var ShowArrows=false;
        var HourCellWidth="35px"; //cell width with seconds.
        showHour=Cal.getShowHour();

        if (Cal.ShowSeconds==false && TimeMode==24 ) 
        {
            ShowArrows=true;
            HourCellWidth="10px";
        }

        vCalTime="\n<tr>\n<td colspan='7' align='center'><center>\n<table border='0' width='199px' cellpadding='0' cellspacing='2'>\n<tr>\n<td height='5px' width='"+HourCellWidth+"px'>&nbsp;</td>\n";

        if (ShowArrows && UseImageFiles) 
        {   
            vCalTime+="<td align='center'><table cellspacing='0' cellpadding='0' style='line-height:0pt'><tr><td><img onmousedown='startSpin(\"Hour\", \"plus\");' onmouseup='stopSpin();' src='images/cal_plus.gif' width='13px' height='9px' onmouseover='changeBorder(this, 0)' onmouseout='changeBorder(this, 1)' style='border:1px solid white'></td></tr><tr><td><img onmousedown='startSpin(\"Hour\", \"minus\");' onmouseup='stopSpin();' src='images/cal_minus.gif' width='13px' height='9px' onmouseover='changeBorder(this, 0)' onmouseout='changeBorder(this, 1)' style='border:1px solid white'></td></tr></table></td>\n"; 
        }

        vCalTime+="<td align='center' width='22px'><input type='text' name='hour' maxlength=2 size=1 style=\"WIDTH:22px\" value="+showHour+" onChange=\"javascript:Cal.SetHour(this.value)\">";
        vCalTime+="</td><td align='center' style='font-size:150%; font-weight:bold;'>:</td><td align='center' width='22px'>";
        vCalTime+="<input type='text' name='minute' maxlength=2 size=1 style=\"WIDTH: 22px\" value="+Cal.Minutes+" onChange=\"javascript:Cal.SetMinute(this.value)\">";
	
        if (Cal.ShowSeconds) {
            vCalTime+="</td><td align='center'>:</td><td align='center' width='22px'>";
            vCalTime+="<input type='text' name='second' maxlength=2 size=1 style=\"WIDTH: 22px\" value="+Cal.Seconds+" onChange=\"javascript:Cal.SetSecond(parseInt(this.value,10))\">";
        }

        if (TimeMode==12) {
            var SelectAm =(Cal.AMorPM=="AM")? "Selected":"";
            var SelectPm =(Cal.AMorPM=="PM")? "Selected":"";

            vCalTime+="</td><td>";
            vCalTime+="<select name=\"ampm\" onChange=\"javascript:Cal.SetAmPm(this.options[this.selectedIndex].value);\">\n";
            vCalTime+="<option "+SelectAm+" value=\"AM\">AM</option>";
            vCalTime+="<option "+SelectPm+" value=\"PM\">PM<option>";
            vCalTime+="</select>";
        }

        if (ShowArrows && UseImageFiles) {
            vCalTime+="</td>\n<td align='center'><table cellspacing='0' cellpadding='0' style='line-height:0pt'><tr><td><img onmousedown='startSpin(\"Minute\", \"plus\");' onmouseup='stopSpin();' src='images/cal_plus.gif' width='13px' height='9px' onmouseover='changeBorder(this, 0)' onmouseout='changeBorder(this, 1)' style='border:1px solid white'></td></tr><tr><td><img onmousedown='startSpin(\"Minute\", \"minus\");' onmouseup='stopSpin();' src='images/cal_minus.gif' width='13px' height='9px' onmouseover='changeBorder(this, 0)' onmouseout='changeBorder(this, 1)' style='border:1px solid white'></td></tr></table>"; 
        }

        vCalTime+="</td>\n<td align='right' valign='bottom' width='"+HourCellWidth+"px'>";
    }

    else
    {
        vCalTime+="\n<tr>\n<td colspan='7' align='right'>";
    }

    if (UseImageFiles)
    {
        vCalTime+="<img onmousedown='javascript:closewin(\"" + Cal.Ctrl + "\"); stopSpin();' src='images/cal_close.gif' width='16px' height='14px' onmouseover='changeBorder(this,0)' onmouseout='changeBorder(this, 1)' style='border:1px solid white'></td>";
    }
    else
    {
        vCalTime+="<span id='close_cal' title='close'onmousedown='javascript:closewin(\"" + Cal.Ctrl + "\");' onmouseover='changeBorder(this, 0)'onmouseout='changeBorder(this, 1)' style='border:1px solid white; font-family: Arial;font-size: 10pt;'>x</span></td>";
    }

    vCalTime+="</tr>\n</table></center>\n</td>\n</tr>";
    calHeight += 31;	
    vCalTime+="\n</table>\n</span>";

    //end time picker
    var funcCalback="function callback(id, datum) {\n";
    funcCalback+=" var CalId = document.getElementById(id); if (datum== 'undefined') { var d = new Date(); datum = d.getDate() + '/' +(d.getMonth()+1) + '/' + d.getFullYear(); } window.calDatum=datum;CalId.value=datum;\n";
    funcCalback+=" if (Cal.ShowTime) {\n";
    funcCalback+=" CalId.value+=' '+Cal.getShowHour()+':'+Cal.Minutes;\n";
    funcCalback+=" if (Cal.ShowSeconds)\n  CalId.value+=':'+Cal.Seconds;\n";
    funcCalback+=" if (TimeMode==12)\n  CalId.value+=''+Cal.getShowAMorPM();\n";
    funcCalback+="}\n winCal.style.visibility='hidden';\n}\n";
	
	
    // determines if there is enough space to open the cal above the position where it is called
    if (ypos > calHeight) {
        //ypos = ypos - calHeight; 
        ypos = document.getElementById(Cal.Ctrl).parentNode.offsetTop + document.getElementById(Cal.Ctrl).offsetTop;
        ypos = ypos + y;
    }
	
    xpos = document.getElementById(Cal.Ctrl).parentNode.offsetLeft + document.getElementById(Cal.Ctrl).offsetLeft;
    xpos = xpos + x;

    if (winCal == undefined) {
        var headID = document.getElementsByTagName("head")[0];
	   
        // add javascript function to the span cal
        var e = document.createElement("script");
        e.type = "text/javascript";
        e.language = "javascript";
        e.text = funcCalback;
        headID.appendChild(e);
        // add stylesheet to the span cal

        var cssStr = ".calTD {font-family: verdana; font-size: 12px; text-align: center; border:0 }\n";
        //cssStr+= ".calR {font-family: verdana; font-size: 12px; text-align: center; font-weight: bold; color: red;}"
        cssStr+= ".calR {font-family: verdana; font-size: 12px; text-align: center; font-weight: bold;}"
	   
        var style = document.createElement("style");
        style.type = "text/css";
        style.rel = "stylesheet";
        if(style.styleSheet) { // IE
            style.styleSheet.cssText = cssStr;
        } 

        else { // w3c
            var cssText = document.createTextNode(cssStr);
            style.appendChild(cssText);
        }

        headID.appendChild(style);
        // create the outer frame that allows the cal. to be moved
        var span = document.createElement("span");
        span.id = calSpanID;

        with (span.style) {
            position = "absolute";
            left = (xpos+8)+'px';
            top = (ypos-8)+'px';
            width = CalWidth+'px';
            border = "solid 2pt " + SpanBorderColor;
            padding = "0pt";
            cursor = "move";
            backgroundColor = SpanBgColor;
            zIndex = 100;
            }
        document.body.appendChild(span)
        winCal=document.getElementById(calSpanID);
    }

    else {
        winCal.style.visibility = "visible";
        winCal.style.Height = calHeight;

        // set the position for a new calendar only
        if(bNewCal==true){
            winCal.style.left = (xpos)+'px';
            winCal.style.top = (ypos)+'px';
        }
    }

    winCal.innerHTML=winCalData + vCalHeader + vCalData + vCalTime;
    return true;
}



function GenCell(pValue,pHighLight,pColor,pClickable) { //Generate table cell with value
    var PValue;
    var PCellStr;
    var vColor;
    var PClickable;

    var vHLstr1;//HighLight string
    var vHlstr2;
    var vTimeStr;

    if (pValue==null)
        PValue="";
    else
        PValue=pValue;
	
    if (pColor!=null)
        vColor="bgcolor=\""+pColor+"\"";
    else
        vColor=CalBgColor
    if ((pHighLight!=null)&&(pHighLight)) {
        vHLstr1="<font class='calR'>";
        vHLstr2="</font>";
    }
    else {
        vHLstr1="";
        vHLstr2="";
    }
	
    if (pClickable!=null)
        PClickable=pClickable;
    else PClickable=true;

    if (Cal.ShowTime) {
        vTimeStr=' '+Cal.Hours+':'+Cal.Minutes;
        if (Cal.ShowSeconds)
            vTimeStr+=':'+Cal.Seconds;
        if (TimeMode==12)
            vTimeStr+=' '+Cal.AMorPM;
    }	

    else
        vTimeStr="";		

    if (PValue!="") {
        if (PClickable==true)
            PCellStr="\n<td "+vColor+" class='calTD' style='cursor: pointer;' onmouseover='changeBorder(this, 0);' onmouseout=\"changeBorder(this, 1, '"+pColor+"');\" onClick=\"javascript:callback('"+Cal.Ctrl+"','"+Cal.FormatDate(PValue)+"');\">"+vHLstr1+PValue+vHLstr2+"</td>";
        else
            PCellStr="\n<td "+vColor+" class='calTD' >"+vHLstr1+PValue+vHLstr2+"</td>";
    }
    else

        PCellStr="\n<td "+vColor+" class='calTD'>&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;
    this.Scroller="DROPDOWN";
    if (pDate.getHours()<12)
        this.AMorPM="AM";
    else
        this.AMorPM="PM";

    this.ShowSeconds=true;		
}



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 SwitchYear(intYear) {
    Cal.Year=intYear;
}
Calendar.prototype.SwitchYear=SwitchYear;

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 ((HourExp.test(intHour) || SingleDigit.test(intHour)) && (parseInt(intHour,10)>MaxHour)) {
        intHour = MinHour;
    }

    else if ((HourExp.test(intHour) || SingleDigit.test(intHour)) && (parseInt(intHour,10)<MinHour)) {
        intHour = MaxHour;
    }

    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 MaxMin=59;
    var MinMin=0;

    var SingleDigit=new RegExp("\\d");
    var SingleDigit2=new RegExp("^\\d{1}$");
    var MinExp=new RegExp("^\\d{2}$");

    if ((MinExp.test(intMin) || SingleDigit.test(intMin)) && (parseInt(intMin,10)>MaxMin)) {
        intMin = MinMin;
    }

    else if ((MinExp.test(intMin) || SingleDigit.test(intMin)) && (parseInt(intMin,10)<MinMin))	{
        intMin = MaxMin;
    }

    var strMin = intMin + "";
    if (SingleDigit2.test(intMin)) {
        strMin="0"+strMin+"";
    } 

    if ((MinExp.test(intMin) || SingleDigit.test(intMin)) 
        && (parseInt(intMin,10)<=59) && (parseInt(intMin,10)>=0)) {

        Cal.Minutes=strMin;
    }
}

Calendar.prototype.SetMinute=SetMinute;

function SetSecond(intSec) {	
    var MaxSec=59;
    var MinSec=0;

    var SingleDigit=new RegExp("\\d");
    var SingleDigit2=new RegExp("^\\d{1}$");
    var SecExp=new RegExp("^\\d{2}$");

    if ((SecExp.test(intSec) || SingleDigit.test(intSec)) && (parseInt(intSec,10)>MaxSec)) {
        intSec = MinSec;
    }

    else if ((SecExp.test(intSec) || SingleDigit.test(intSec)) && (parseInt(intSec,10)<MinSec))	{
        intSec = MaxSec;
    }

    var strSec = intSec + "";
    if (SingleDigit2.test(intSec)) {
        strSec="0"+strSec+"";
    } 

    if ((SecExp.test(intSec) || SingleDigit.test(intSec)) 
        && (parseInt(intSec,10)<=59) && (parseInt(intSec,10)>=0)) {

        Cal.Seconds=strSec;
    }

}

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 getShowAMorPM() {
    return this.AMorPM;	
}				

Calendar.prototype.getShowAMorPM=getShowAMorPM;		

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()=="YYMMDD")
        return (String(this.Year).substring(2,4)+DateSeparator+MonthDigit+DateSeparator+pDate);	
    else if (this.Format.toUpperCase()=="YYMMMDD")
        return (String(this.Year).substring(2,4)+DateSeparator+this.GetMonthName(false)+DateSeparator+pDate);				
    else if (this.Format.toUpperCase()=="YYYYMMMDD")
        return (this.Year+DateSeparator+this.GetMonthName(false)+DateSeparator+pDate);	
    else					
        return (pDate+DateSeparator+(this.Month+1)+DateSeparator+this.Year);
}

Calendar.prototype.FormatDate=FormatDate;

function closewin(id) {
    var calControl = document.getElementById(Cal.Ctrl);
    var CalId = document.getElementById(id);
    calControl.value = '';

    CalId.focus();
    winCal.style.visibility='hidden';
}



function changeBorder(element, col, oldBgColor) {
    if (col == 0) {
        element.style.background = HoverColor;
        element.style.borderColor = "black";
        element.style.cursor = "pointer";
    }

    else {
        if(oldBgColor) {
            element.style.background = oldBgColor;
        } else {
            element.style.background = "white";
        }
        element.style.borderColor = "white";
        element.style.cursor = "auto";
    }
}


function pickIt(evt) {
    // accesses the element that generates the event and retrieves its ID
    if (window.addEventListener) { // w3c
        var objectID = evt.target.id;
        if (objectID.indexOf(calSpanID) != -1){
            var dom = document.getElementById(objectID);
            cnLeft=evt.pageX;
            cnTop=evt.pageY;

            if (dom.offsetLeft){
                cnLeft = (cnLeft - dom.offsetLeft);
                cnTop = (cnTop - dom.offsetTop);
            }
        }

        // get mouse position on click
        xpos = (evt.pageX);
        ypos = (evt.pageY);
    }   

    else { // IE
        var objectID = event.srcElement.id;
        cnLeft=event.offsetX;
        cnTop=(event.offsetY);

        // get mouse position on click
        var de = document.documentElement;
        var b = document.body;

        xpos = event.clientX + (de.scrollLeft || b.scrollLeft) - (de.clientLeft || 0);
        ypos = event.clientY + (de.scrollTop || b.scrollTop) - (de.clientTop || 0);
    }

    // verify if this is a valid element to pick  
    if (objectID.indexOf(calSpanID) != -1){
        domStyle = document.getElementById(objectID).style;
    }

    if (domStyle) { 
        domStyle.zIndex = 100;
        return false;
    }

    else {
        domStyle = null;
        return;
    }
}



function dragIt(evt) {
    if (domStyle) {
        if (window.event) { //for IE
            domStyle.left = (event.clientX-cnLeft + document.body.scrollLeft)+'px';
            domStyle.top = (event.clientY-cnTop + document.body.scrollTop)+'px';
        } else {  //Firefox
            domStyle.left = (evt.clientX-cnLeft + document.body.scrollLeft)+'px'; 
            domStyle.top = (evt.clientY-cnTop + document.body.scrollTop)+'px';
        }
    } 
}



function dropIt() {
    stopSpin();
	
    if (domStyle) { 
        domStyle = null;
    }
}
 
 
// starts the time spinner
function startSpin(whatSpinner, direction) {
    document.thisLoop = setInterval("nextStep('"+whatSpinner+"', '"+direction+"');", 125); //125 ms
}

// performs a single increment or decrement
function nextStep(whatSpinner, direction) {
    if(whatSpinner == "Hour") {
        if(direction == "plus") {
            Cal.SetHour(Cal.Hours + 1);
            RenderCssCal();
        } else if(direction == "minus") {
            Cal.SetHour(Cal.Hours - 1);
            RenderCssCal();
        }
    } else if(whatSpinner == "Minute") {
        if(direction == "plus") {
            Cal.SetMinute(parseInt(Cal.Minutes,10) + 1);
            RenderCssCal();
        } else if(direction == "minus") {
            Cal.SetMinute(parseInt(Cal.Minutes,10) - 1);
            RenderCssCal();
        }
    }
	
}

//stops the time spinner
function stopSpin() {
    clearInterval(document.thisLoop);
}