var isNav=false;

if(parseInt(navigator.appVersion) >= 4)
{
  if(navigator.appName == "Netscape")
  {
    isNav=true;
  }
}
else
{
  isNav=true;
}
  

var today = new Date(new Date().valueOf());
var dateBoxPieceBlank = "    <td width=\"22\" height=\"18\" align=\"center\" valign=\"middle\" bgcolor=\"#FFFFFF\" class=\"calendar\">&nbsp;</td>";
var dateBoxPiece = "    <td class=\"calendar\" width=\"22\" height=\"18\" align=\"center\" valign=\"middle\" onMouseOver=\"this.style.background = '#FFFF93';\" onMouseOut=\"this.style.background = '##BGCOLOR##';\" onClick=\"setDateBoxes('##DATESET##',##MONTH##,##DAY##,##YEAR##)\" bgcolor=\"##BGCOLOR##\">##DAY##</td>";

var baseDateBoxHeader = "<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"158\">\n";
baseDateBoxHeader += "  <tr>\n";
baseDateBoxHeader += "    <td colspan=\"7\" align=\"center\">\n";
baseDateBoxHeader += "      <table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"158\">\n";
baseDateBoxHeader += "        <tr>\n";
baseDateBoxHeader += "          <td width=\"33%\" class=\"calendar\"><div name=\"back\" style=\"width: 15; border: 1 solid buttonface; border: 2 outset buttonhighlight; background-color: menu;\" align=\"center\" onMouseDown=\"this.style.border = '2 inset buttonhighlight'\" onMouseUp=\"this.style.border = '2 outset buttonhighlight'\" onClick=\"previousMonth('##DATESET##')\">&lt;</div></td>\n";
baseDateBoxHeader += "          <td width=\"33%\" class=\"calendar\" nowrap><font face=\"Arial\" size=\"2\" color=\"#B92333\"><b>##MONTHNAME## ##YEAR##</b></font></td>\n";
baseDateBoxHeader += "          <td width=\"33%\" class=\"calendar\" align=\"right\"><div name=\"next\" style=\"width: 15; border: 1 solid buttonface; border: 2 outset buttonhighlight; background-color: menu;\" align=\"center\" onMouseDown=\"this.style.border = '2 inset buttonhighlight'\" onMouseUp=\"this.style.border = '2 outset buttonhighlight'\" onClick=\"nextMonth('##DATESET##')\">&gt;</div></td>\n";
baseDateBoxHeader += "        </tr>\n";
baseDateBoxHeader += "      </table>\n";
baseDateBoxHeader += "    </td>\n";
baseDateBoxHeader += "  </tr>\n";
baseDateBoxHeader += "  <tr>\n";
baseDateBoxHeader += "    <td class=\"calendar\" bgcolor=\"#B92333\" align=\"center\"><font color=\"#FFFFFF\">S</font></td>\n";
baseDateBoxHeader += "    <td class=\"calendar\" bgcolor=\"#B92333\" align=\"center\"><font color=\"#FFFFFF\">M</font></td>\n";
baseDateBoxHeader += "    <td class=\"calendar\" bgcolor=\"#B92333\" align=\"center\"><font color=\"#FFFFFF\">T</font></td>\n";
baseDateBoxHeader += "    <td class=\"calendar\" bgcolor=\"#B92333\" align=\"center\"><font color=\"#FFFFFF\">W</font></td>\n";
baseDateBoxHeader += "    <td class=\"calendar\" bgcolor=\"#B92333\" align=\"center\"><font color=\"#FFFFFF\">T</font></td>\n";
baseDateBoxHeader += "    <td class=\"calendar\" bgcolor=\"#B92333\" align=\"center\"><font color=\"#FFFFFF\">F</font></td>\n";
baseDateBoxHeader += "    <td class=\"calendar\" bgcolor=\"#B92333\" align=\"center\"><font color=\"#FFFFFF\">S</font></td>\n";
baseDateBoxHeader += "  </tr>";

var dateBoxFooter = "  <tr>\n";
dateBoxFooter += "    <td class=\"calendar\" colspan=\"7\" align=\"center\"><div name=\"close_btn\" style=\"width: 50; height: 15; border: 1 solid buttonface; border: 2 outset buttonhighlight; background-color: menu;\" align=\"center\" onMouseDown=\"this.style.border = '2 inset buttonhighlight'\" onMouseUp=\"this.style.border = '2 outset buttonhighlight'\" onClick=\"hideCalendar()\">Close</div></td>\n";
dateBoxFooter += "  </tr>\n</table>\n";

var calBuffer="";

var caldays = new Array(31,28,31,30,31,30,31,31,30,31,30,31);
var months = new Array("January","February","March","April","May","June","July","August","September","October","November","December");
function isLeapYear(yr)
{
  if (((yr % 4 == 0) && (yr % 100 != 0)) || (yr % 400 == 0)) { return true; }
  else { return false; } 
}


function GetDOW2(d,m,y)
{
  var dt=new Date(y,m-1,d);
  return(dt.getDay())%7;
}

var selectBoxFlag=false;
var maxYear=0;
var minYear=0;
function displayCalendar(hideSelects,inDateSet)
{
  selectBoxFlag=hideSelects;
  if(isNav)
  {
    var calWinHndl = window.open("http://www.lodging.com/bonnie/window-calendar.html","calendar","scrollbars=yes,resizable=yes,width=520,height=200");
    calWinHndl.focus();
  }
  else
  {
    theForm = document.mainForm;
    var inYear = theForm.inyear.options[theForm.inyear.selectedIndex].value;
  
    theForm = document.mainForm;
    var mon = parseInt(theForm.inmonth.options[theForm.inmonth.selectedIndex].value,10);
    var day = parseInt(theForm.inday.options[theForm.inday.selectedIndex].value,10);
    var year = parseInt(theForm.inyear.options[theForm.inyear.selectedIndex].value,10);
    currentMonth = mon;
    currentYear = year;
    currentDay = day;
    
    maxYear = parseInt(theForm.inyear.options[(theForm.inyear.options.length-1)].value,10);
    minYear = parseInt(theForm.inyear.options[0].value,10);

    drawCalendarBody(inDateSet,mon,day,year);
  
    document.all.CAL.style.left = (event.x - event.offsetX);
    document.all.CAL.style.top = (event.y - event.offsetY);
    
    document.all.CAL.style.visibility = "visible";

    if(hideSelects)
    {
      if(document.all.mainForm.numrooms) { document.all.mainForm.numrooms.style.visibility = "hidden"; }
      if(document.all.mainForm.numadults) { document.all.mainForm.numadults.style.visibility = "hidden"; }
      if(document.all.mainForm.bedpref) { document.all.mainForm.bedpref.style.visibility = "hidden"; }
      if(document.all.mainForm.smokingpref) { document.all.mainForm.smokingpref.style.visibility = "hidden"; }
      if(document.all.mainForm.chainpref) {document.all.mainForm.chainpref.style.visibility = "hidden"; }
    }
  }
}

function hideCalendar(hideSelects)
{
  document.all.CAL.style.visibility = "hidden";

  if(hideSelects || selectBoxFlag)
  {
    if(document.all.mainForm.numrooms) { document.all.mainForm.numrooms.style.visibility = "visible"; }
    if(document.all.mainForm.numadults) { document.all.mainForm.numadults.style.visibility = "visible"; }
    if(document.all.mainForm.bedpref) { document.all.mainForm.bedpref.style.visibility = "visible"; }
    if(document.all.mainForm.smokingpref) { document.all.mainForm.smokingpref.style.visibility = "visible"; }
    if(document.all.mainForm.chainpref) {document.all.mainForm.chainpref.style.visibility = "visible"; }
  }
}

function nextMonth(inDateSet)
{
  currentMonth += 1;
  if(currentMonth > 12 && currentYear + 1 <= maxYear)
  {
    currentMonth = 1;
    currentYear++;
  }
  if(currentMonth > 12)
  {
    currentMonth = 12;
  }
  if(currentMonth == (today.getMonth()+1) && currentYear == today.getYear())
  {
    drawCalendarBody(inDateSet,currentMonth,currentDay,currentYear);
  }
  else
  {
    drawCalendarBody(inDateSet,currentMonth,0,currentYear);
  }
}

function previousMonth(inDateSet)
{
  if((currentMonth - 1) < (today.getMonth()+1) && currentYear <= today.getYear())
  {
    
  }
  else
  {
    currentMonth -= 1;
    if(currentMonth < 1 && currentYear - 1 >= minYear)
    {
      currentMonth = 12;
      currentYear -= 1;
    }
    if(currentMonth == (today.getMonth()+1) && currentYear == today.getYear())
    {
      drawCalendarBody(inDateSet,currentMonth,currentDay,currentYear);
    }
    else
    {
      drawCalendarBody(inDateSet,currentMonth,0,currentYear);
    }
  }
}

var currentMonth=1;
var currentYear=2002;
var currentDay=1;

function drawCalendarBody(inDateSet,mon,day,year)
{
  calObj = document.all.CAL_BODY;
  theForm = document.mainForm;
  
  var dowStartPos = GetDOW2(1,mon,year);
  var finalDay = caldays[(mon-1)];
  if(isLeapYear(year) && mon == 1) { finalDay += 1; }
  
  re_MonthName = /##MONTHNAME##/g;
  re_Year = /##YEAR##/g;
  re_DateSet = /##DATESET##/g;
  
  dateBoxHeader = baseDateBoxHeader;
  dateBoxHeader = dateBoxHeader.replace(re_MonthName,months[(mon-1)]);
  dateBoxHeader = dateBoxHeader.replace(re_Year,""+year);
  dateBoxHeader = dateBoxHeader.replace(re_DateSet,""+inDateSet);

  calBuffer = generateGrid(inDateSet,dowStartPos,finalDay, mon,day,year);
  document.all.CAL_BODY.innerHTML = dateBoxHeader + calBuffer + dateBoxFooter;
}

function generateGrid(inDateSet,startPos,endPos, m,d,y)
{
  var currentDay=1;
  var gridCount=0;
  var doBlanks=true;
  var tmpBuffer="";
  re_Month = /##MONTH##/g;
  re_Day = /##DAY##/g;
  re_Year = /##YEAR##/g;
  re_BGColor = /##BGCOLOR##/g;
  re_DateSet = /##DATESET##/g;
  
  for(var i=0;i<6;i++)
  {
    tmpBuffer += "<tr>\n";
    for(var j=0;j<7;j++)
    {
      if(gridCount < startPos || currentDay > endPos)
      {
        tmpBuffer += dateBoxPieceBlank + "\n";
      }
      else
      {
        pasrsedDBP = dateBoxPiece;
        pasrsedDBP = pasrsedDBP.replace(re_Month,""+m);
        pasrsedDBP = pasrsedDBP.replace(re_Day,""+currentDay);
        pasrsedDBP = pasrsedDBP.replace(re_Year,""+y);
        pasrsedDBP = pasrsedDBP.replace(re_DateSet,""+inDateSet);

        if(currentDay == d) { pasrsedDBP = pasrsedDBP.replace(re_BGColor,"#BFC1FF"); }
        else { pasrsedDBP = pasrsedDBP.replace(re_BGColor,"#FFFFFF"); }
        
        tmpBuffer += pasrsedDBP + "\n";
        currentDay++;
      }
      gridCount++;
    }
    tmpBuffer += "</tr>\n";
  }

  return tmpBuffer;
}

function setDateBoxes(whichDateSet,m,d,y)
{
  theForm = document.mainForm;
  eval("monthObj = theForm."+whichDateSet+"month;");
  eval("dayObj = theForm."+whichDateSet+"day;");
  eval("yearObj = theForm."+whichDateSet+"year;");
  var yearOffset = parseInt(theForm.inyear.options[0].value,10);
  monthObj.options[(m-1)].selected = true;
  dayObj.options[(d-1)].selected = true;
  yearObj.options[(y-yearOffset)].selected = true;
  
  changeDates();
  hideCalendar();
}