var gdCtrl = new Object();

var gcGray = "#808080"; //color de los dias que no pertenecen al mes.
var gcToggle = "#FF8214"; //color del fondo del dia del mes que se pasa el cursor del raton.
var gcBG = "#FFCC66"; //color de fondo de las celdas de los dias del mes.
var gcBGDS = "#336699"; //color de fondo de las celdas de los dias de las semanas.
var colorlineas ="#ffffff"; //color de las líneas que separan las celdas con los dias del mes.
var colorNombreDia = "#ffffff"; //color del número del dia de la semana.
var colorfondo = "#ffffff"; //color del fondo de la tabla
var colorhoy = "#000000"; //color de la letra de la fecha de hoy
var tamanohoy = "8pt"; //tamaño de la letra de la fecha de hoy
var letrahoy = "arial"; // tipo de letra de la fecha de hoy
//var aniomin = gdCurDate.getFullYear(); //Año mínimo
//var aniomax = gdCurDate.getFullYear()+1; //Año máximo

var gdCurDate = new Date();
var giYear = gdCurDate.getFullYear();
var giMonth = gdCurDate.getMonth()+1;
var giDay = gdCurDate.getDate();
var VicPopCal = new Object();
var aniomin = gdCurDate.getFullYear(); //Año mínimo
var aniomax = gdCurDate.getFullYear()+1; //Año máximo

function fPopCalendar(popCtrl, dateCtrl, popCal){
  parent.event.cancelBubble=true;
  VicPopCal = popCal;
  gdCtrl = dateCtrl;
  fSetYearMon(giYear, giMonth);
  var point = fGetXY(popCtrl);
  with (VicPopCal.style) {
  	left = point.x-70
	top  = point.y+popCtrl.offsetHeight+20;
	visibility = 'visible';
  }
  VicPopCal.focus();
}

function fSetDate(iYear, iMonth, iDay){
  gdCtrl.value = iDay+"/"+iMonth+"/"+iYear; //Here, you could modify the locale as you need !!!!
  VicPopCal.style.visibility = "hidden";
}

function fClose(){
  //gdCtrl.value = iDay+"/"+iMonth+"/"+iYear; //Here, you could modify the locale as you need !!!!
  VicPopCal.style.visibility = "hidden";
}

function fSetSelected(aCell){
  var iOffset = 0;
  var iYear = parseInt(tbSelYear.value);
  var iMonth = parseInt(tbSelMonth.value);

  aCell.bgColor = gcBG;
  with (aCell.children["cellText"]){
  	var iDay = parseInt(innerText);
  	if (color==gcGray)
		iOffset = (Victor<10)?-1:1;
	iMonth += iOffset;
	if (iMonth<1) {
		iYear--;
		iMonth = 12;
	}else if (iMonth>12){
		iYear++;
		iMonth = 1;
	}
  }
  fSetDate(iYear, iMonth, iDay);
}

function Point(iX, iY){
	this.x = iX;
	this.y = iY;
}

function fBuildCal(iYear, iMonth) {
  var aMonth=new Array();
  for(i=1;i<7;i++)
  	aMonth[i]=new Array(i);

  var dCalDate=new Date(iYear, iMonth-1, 1);
  var iDayOfFirst=dCalDate.getDay()-1;
  if (iDayOfFirst==-1) iDayOfFirst=6;
  var iDaysInMonth=new Date(iYear, iMonth, 0).getDate();
  var iOffsetLast=new Date(iYear, iMonth-1, 0).getDate()-iDayOfFirst+1;
  var iDate = 1;
  var iNext = 1;

  for (d = 0; d < 7; d++)
	aMonth[1][d] = (d<iDayOfFirst)?-(iOffsetLast+d):iDate++;
	//aMonth[1][d] = (d<iDayOfFirst)?-(iOffsetLast+d):iDate++;
  for (w = 2; w < 7; w++)
  	for (d = 0; d < 7; d++)
		aMonth[w][d] = (iDate<=iDaysInMonth)?iDate++:-(iNext++);
  return aMonth;
}

function fDrawCal(iYear, iMonth, iCellWidth, iDateTextSize) {
  var WeekDay = new Array("Lu","Ma","Mi","Ju","Vi","Sa","Do");
  var styleTD = " bgcolor='" + gcBG + "' width='" + iCellWidth + "' bordercolor='" + gcBG + "' valign='middle' align='center'  style='font:bold " + iDateTextSize + " Courier;";            //Coded by Liming Weng(Victor Won)  email:victorwon@netease.com
  var styleTDN = " bgcolor='" + gcBGDS + "' width='" + iCellWidth + "' bordercolor='" + gcBGDS + "' valign='middle' align='center'  style='font:bold " + iDateTextSize + " Courier;";            //Coded by Liming Weng(Victor Won)  email:victorwon@netease.com

  with (document) {
	write("<tr>");
	for(i=0; i<7; i++)
		write("<td "+styleTDN+"color:"+colorNombreDia+"' >" + WeekDay[i] + "</td>");
	write("</tr>");

  	for (w = 1; w < 7; w++) {
		write("<tr>");
		for (d = 0; d < 7; d++) {
			write("<td id=calCell " + styleTD + " cursor:hand;' onMouseOver='this.bgColor=gcToggle' onMouseOut='this.bgColor=gcBG' onclick='fSetSelected(this)'>");
			write("<font id=cellText Victor='Liming Weng'> </font>");
			write("</td>")
		}
		write("</tr>");
	}
  }
}

function fUpdateCal(iYear, iMonth) {
  myMonth = fBuildCal(iYear, iMonth);
  var i = 0;
  for (w = 0; w < 6; w++)
	for (d = 0; d < 7; d++)
		with (cellText[(7*w)+d]) {
			Victor = i++;
			if (myMonth[w+1][d]<0) {
				color = gcGray;
				innerText = -myMonth[w+1][d];
			}else{
				color = (d==6)?"red":"black";
				innerText = myMonth[w+1][d];
			}
		}
}

function fSetYearMon(iYear, iMon){
  tbSelMonth.options[iMon-1].selected = true;
  for (i = 0; i < tbSelYear.length; i++)
	if (tbSelYear.options[i].value == iYear)
		tbSelYear.options[i].selected = true;
  fUpdateCal(iYear, iMon);
}

function fPrevMonth(){
  var iMon = tbSelMonth.value;
  var iYear = tbSelYear.value;

  if (--iMon<1) {
	  iMon = 12;
	  iYear--;
  }

  fSetYearMon(iYear, iMon);
}

function fNextMonth(){
  var iMon = tbSelMonth.value;
  var iYear = tbSelYear.value;

  if (++iMon>12) {
	  iMon = 1;
	  iYear++;
  }

  fSetYearMon(iYear, iMon);
}

function fGetXY(aTag){
  var oTmp = aTag;
  var pt = new Point(0,0);
  do {
  	pt.x += oTmp.offsetLeft;
  	pt.y += oTmp.offsetTop;
  	oTmp = oTmp.offsetParent;
  } while(oTmp.tagName!="BODY");
  return pt;
}

var gMonths = new Array("Ene","Feb","Mar","Abr","May","Jun","Jul","Ago","Sep","Oct","Nov","Dic");

with (document) {
write("<table id='popTable' border='0' bgcolor='"+colorfondo+"'>");
write("<TR>");
write("<td valign='middle' align='center'><input type='button' name='PrevMonth' value='<' style='height:20;width:20;FONT:16 Fixedsys' onClick='fPrevMonth()'>");
write("&nbsp;<select name='tbSelMonth' onChange='fUpdateCal(tbSelYear.value, tbSelMonth.value)' Victor='Won'>");
for (i=0; i<12; i++)
	write("<option value='"+(i+1)+"'>"+gMonths[i]+"</option>");
write("</SELECT>");
write("&nbsp;<SELECT name='tbSelYear' onChange='fUpdateCal(tbSelYear.value, tbSelMonth.value)' Victor='Won'>");
for(i=aniomin;i<=aniomax;i++)
	write("<OPTION value='"+i+"'>"+i+"</OPTION>");
write("</SELECT>");
write("&nbsp;<input type='button' name='PrevMonth' value='>' style='height:20;width:20;FONT:16 Fixedsys' onclick='fNextMonth()'>");
write("&nbsp;<input type='button' name='CloseW' value='x' style='height:20;width:20;FONT:16 Fixedsys' onclick='fClose()'>");
write("</td>");
write("</TR><TR>");
write("<td align='center'>");
write("<DIV style='background-color:"+colorlineas+";'><table width='100%' border='0' cellpadding='2'>");
fDrawCal(giYear, giMonth, 19, 10);
write("</table></DIV>");
write("</td>");
write("</TR><TR><TD align='center'>");
write("<font style='cursor:hand;FONT-SIZE:" + tamanohoy + ";FONT-WEIGHT:bold;FONT-FAMILY:" + letrahoy + ";color:" + colorhoy + "; Fixedsys' onclick='fSetDate(giYear,giMonth,giDay)' onMouseOver='this.style.color=gcToggle' onMouseOut='this.style.color=colorhoy'>Hoy:&nbsp;"+giDay+"&nbsp;"+gMonths[giMonth-1]+"&nbsp;"+giYear+"</font>");
write("</TD></TR>");write("</TD></TR>");
write("</TABLE>");
}