/* - - - - - - - - - - - - - - - - - - - - - - -
 JavaScript
 Monday, June 20, 2005 3:59:39 AM
 HAPedit 3.1.11.111
 - - - - - - - - - - - - - - - - - - - - - - - */


var dtCh= "/";
var minYear=2010;
var maxYear=2012;

function isInteger(s){
  var i;
    for (i = 0; i < s.length; i++){   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}

function stripCharsInBag(s, bag){
  var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++){   
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function daysInFebruary (year){
  // February has 29 days in any year evenly divisible by four,
    // EXCEPT for centurial years which are not also divisible by 400.
    return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
}
function DaysArray(n) {
  for (var i = 1; i <= n; i++) {
    this[i] = 31
    if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
    if (i==2) {this[i] = 29}
   } 
   return this
}

function isDate(dtStr)
{
  var daysInMonth = DaysArray(12)
  var pos1=dtStr.indexOf(dtCh)
  var pos2=dtStr.indexOf(dtCh,pos1+1)
  var strMonth=dtStr.substring(0,pos1)
  var strDay=dtStr.substring(pos1+1,pos2)
  var strYear=dtStr.substring(pos2+1)
  strYr=strYear
  if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
  if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
  for (var i = 1; i <= 3; i++) {
    if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
  }
  month=parseInt(strMonth)
  day=parseInt(strDay)
  year=parseInt(strYr)
  if (pos1==-1 || pos2==-1){
    alert("The date format should be : MM/DD/YYYY ")
    return false
  }
  if (strMonth.length<1 || month<1 || month>12){
    alert("Please enter a valid month")
    return false
  }
  if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
    alert("Please enter a valid day")
    return false
  }
  if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
    alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear)
    return false
  }
  if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
    alert("Please enter a valid date")
    return false
  }
return true
}


function ValidateForm()
{

  var dt=document.calform.Checkin
  var dt1=document.calform.Checkout
  var city=document.calform.City.value
  
  if (city == "" ){
     alert("Please select a City / Destination")
	 document.calform.City.focus()
     return false}
  
  if(dt.value!="")
  {
  if (isDate(dt.value)==false){
    dt.focus()
    return false
  }
    //return true
  if (isDate(dt1.value)==false){
    dt1.focus()
    return false
  }
  }
  
  var dt_arr=(dt.value).split("/",3)
  var dt1_arr=(dt1.value).split("/",3)
  var dt_no=dt_arr[2]+dt_arr[0]+dt_arr[1]
  var dt_no1=dt1_arr[2]+dt1_arr[0]+dt1_arr[1]
  //alert ( dt_no+"  "+dt_no1)

  if (dt_no1 < dt_no ){
     alert("Checkout  date   should  be  greater  than Checkin  date ")
     return false

  }
  var myDate=new Date()
  myDate.setFullYear(dt_arr[2],dt_arr[0]-1,dt_arr[1])
  var myDate1=new Date()
  myDate1.setFullYear(dt1_arr[2],dt1_arr[0]-1,dt1_arr[1])

  var today = new Date()

  if (myDate<today){
      alert("Checkin  date   Less  than  Today's Date ")
      return false
  }
  if (myDate1<today){
      alert("Checkout  date  Less  than  Today's Date ")
      return false
  }
  return true

 }