function maxDays(mm, yyyy){
var mDay;
 if((mm == 3) || (mm == 5) || (mm == 8) || (mm == 10)){
  mDay = 30;
   }
   else{
    mDay = 31
    if(mm == 1){
      if (yyyy/4 - parseInt(yyyy/4) != 0){
       mDay = 28
      }
      else{
       mDay = 29
     }
  }
  }
return mDay;
}
function changeBg(id){
 if (eval(id).style.backgroundColor != "yellow"){
  eval(id).style.backgroundColor = "yellow"
 }
 else{
  eval(id).style.backgroundColor = "#ffffff"
 }
}
function writeCalendar(){
var now = new Date
var dd = now.getDate()
var mm = now.getMonth()
var dow = now.getDay()
var yyyy = now.getFullYear()
var arrM = new Array("January","February","March","April","May","June","July","August","September","October","November","December")
var arrY = new Array()
 for (ii=0;ii<=4;ii++){
  arrY[ii] = yyyy - 2 + ii
 }
var arrD = new Array("Sun","Mon","Tue","Wed","Thu","Fri","Sat")

var text = ""
text = "<form name=calForm>"
text += "<table border=1 style=background:#ffffff>"
text += "<tr><td>"
text += "<table width=100% style=background:#ffffff><tr>"
text += "<td align=left>"
text += "<select name=selMonth onChange='changeCal()'>"
 for (ii=0;ii<=11;ii++){
  if (ii==mm){
   text += "<option value= " + ii + " Selected>" + arrM[ii] + "</option>"
  }
  else{
   text += "<option value= " + ii + ">" + arrM[ii] + "</option>"
  }
 }
text += "</select>"
text += "</td>"
text += "<td align=right>"
text += "<select name=selYear onChange='changeCal()'>"
 for (ii=0;ii<=4;ii++){
  if (ii==2){
   text += "<option value= " + arrY[ii] + " Selected>" + arrY[ii] + "</option>"
  }
  else{
   text += "<option value= " + arrY[ii] + ">" + arrY[ii] + "</option>"
  }
 }
text += "</select>"
text += "</td>"
text += "</tr></table>"
text += "</td></tr>"
text += "<tr><td>"
text += "<table border=1 style=background:#ffffff>"
text += "<tr>"
 for (ii=0;ii<=6;ii++){
  text += "<td align=center><span class=label>" + arrD[ii] + "</span></td>"
 }
text += "</tr>"
aa = 0
 for (kk=0;kk<=5;kk++){
  text += "<tr>"
  for (ii=0;ii<=6;ii++){
   text += "<td align=center><span id=sp" + aa + " onClick='changeBg(this.id)'>1</span></td>"
   aa += 1
  }
  text += "</tr>"
 }
text += "</table>"
text += "</td></tr>"
text += "</table>"
text += "</form>"
document.write(text)
changeCal()
}
function changeCal(){
var now = new Date
var dd = now.getDate()
var mm = now.getMonth()
var dow = now.getDay()
var yyyy = now.getFullYear()
var currM = parseInt(document.calForm.selMonth.value)
var prevM
 if (currM!=0){
  prevM = currM - 1
 }
 else{
  prevM = 11
 }
var currY = parseInt(document.calForm.selYear.value)
var mmyyyy = new Date()
mmyyyy.setFullYear(currY)
mmyyyy.setMonth(currM)
mmyyyy.setDate(1)
var day1 = mmyyyy.getDay()
 if (day1 == 0){
  day1 = 7
 }
var arrN = new Array(41)
var aa
 for (ii=0;ii<day1;ii++){
  arrN[ii] = maxDays((prevM),currY) - day1 + ii + 1
 }
 aa = 1
 for (ii=day1;ii<=day1+maxDays(currM,currY)-1;ii++){
  arrN[ii] = aa
  aa += 1
 }
 aa = 1
 for (ii=day1+maxDays(currM,currY);ii<=41;ii++){
  arrN[ii] = aa
  aa += 1
 }
 for (ii=0;ii<=41;ii++){
  eval("sp"+ii).style.backgroundColor = "#FFFFFF"
 }
var dCount = 0
 for (ii=0;ii<=41;ii++){
  if (((ii<7)&&(arrN[ii]>20))||((ii>27)&&(arrN[ii]<20))){
   eval("sp"+ii).innerHTML = arrN[ii]
   eval("sp"+ii).className = "c3"
  }
  else{
   eval("sp"+ii).innerHTML = arrN[ii]
   if ((dCount==0)||(dCount==6)){
    eval("sp"+ii).className = "c2"
   }
   else{
    eval("sp"+ii).className = "c1"
   }
   if ((arrN[ii]==dd)&&(mm==currM)&&(yyyy==currY)){
    eval("sp"+ii).style.backgroundColor="#90EE90"
   }
  }
 dCount += 1
  if (dCount>6){
   dCount=0
  }
 }
}



document.write('<script type="text/javascript">writeCalendar()</script>')