function FDK_StripChars(theFilter,theString)
{
	var strOut,i,curChar

	strOut = ""
	for (i=0;i < theString.length; i++)
	{		
		curChar = theString.charAt(i)
		if (theFilter.indexOf(curChar) < 0)	// if it's not in the filter, send it thru
			strOut += curChar		
	}	
	return strOut
}

function FDK_AddToValidateArray(FormName,FormElement,Validation,SetFocus)
{
    var TheRoot=eval("document."+FormName);
 
    if (!TheRoot.ValidateForm) 
    {
        TheRoot.ValidateForm = true;
        eval(FormName+"NameArray = new Array()")
        eval(FormName+"ValidationArray = new Array()")
        eval(FormName+"FocusArray = new Array()")
    }
    var ArrayIndex = eval(FormName+"NameArray.length");
    eval(FormName+"NameArray[ArrayIndex] = FormElement");
    eval(FormName+"ValidationArray[ArrayIndex] = Validation");
    eval(FormName+"FocusArray[ArrayIndex] = SetFocus");
 
}

function FDK_ValidateAlphaNum(FormElement,Required,ErrorMsg)
{
	var msg = "";
	var i, m, s, firstNonWhite
	var theString = FormElement.value;
 	var msgInvalid = ErrorMsg;

	if (FDK_StripChars(" ",theString).length == 0)	     {
		if (!Required)       {
          return "";		
        }
		else       {
          return msgInvalid;
        }
    }
	//Strip spaces off of the sides of the string
 	theString = FDK_Trim(theString);

    for (var n=0; n<theString.length; n++)     {
      theChar = theString.substring(n,n+1);
      if (!FDK_AllInRange("0","9",theChar) && !FDK_AllInRange("A","Z",theChar.toUpperCase()) && !(theChar == " "))     {
        return msgInvalid;
      }
    }

    return "";
}

function FDK_Trim(theString)
{
 var i,firstNonWhite

 if (FDK_StripChars(" \n\r\t",theString).length == 0 ) return ""

	i = -1
	while (1)
	{
		i++
		if (theString.charAt(i) != " ")
			break	
	}
	firstNonWhite = i
	//Count the spaces at the end
	i = theString.length
	while (1)
	{
		i--
		if (theString.charAt(i) != " ")
			break	
	}	

	return theString.substring(firstNonWhite,i + 1)

}

function FDK_AllInRange(x,y,theString)
{
	var i, curChar
	
	for (i=0; i < theString.length; i++)
	{
		curChar = theString.charAt(i)
		if (curChar < x || curChar > y) //the char is not in range
			return false
	}
	return true
}

function FDK_AddAlphaNumericValidation(FormName,FormElementName,Required,SetFocus,ErrorMsg)  {
  var ValString = "FDK_ValidateAlphaNum("+FormElementName+","+Required+","+ErrorMsg+")"
  FDK_AddToValidateArray(FormName,eval(FormElementName),ValString,SetFocus)
}

function FDK_ValidateInternationalPhone(FormElement,Required,ErrorMsg)
{
	var msg = ""
	var theString = FormElement.value;
	
	var theLen = FDK_StripChars(" \n\t\r",theString).length
	if (theLen == 0)	
		if (!Required) return "";		
		else return ErrorMsg;

	theString = FDK_StripChars("+*() -./_\n\r",theString)		

	if (!FDK_AllInRange("0","9",theString) || theString.length < 6)
	{
		msg = ErrorMsg;
	}	

	return msg		
}

function FDK_reformat(s)
{
    var arg;
    var sPos = 0;
    var resultString = "";

    for (var i = 1; i < FDK_reformat.arguments.length; i++) {
       arg = FDK_reformat.arguments[i];
       if (i % 2 == 1) 
           resultString += arg;
       else 
       {
           resultString += s.substring(sPos, sPos + arg);
           sPos += arg;
       }
    }
    return resultString;
}

function FDK_AddInternationalPhoneValidation(FormName,FormElementName,Required,SetFocus,ErrorMsg)  {
  var ValString = "FDK_ValidateInternationalPhone("+FormElementName+","+Required+","+ErrorMsg+")"
  FDK_AddToValidateArray(FormName,eval(FormElementName),ValString,SetFocus)
}

function FDK_ValidateEmail(FormElement,Required,ErrorMsg)
{
   var msg = "";
   var val = FormElement.value;
   var msgInvalid = ErrorMsg;

   var theLen = FDK_StripChars(" ",val).length
   if (theLen == 0)	     {
     if (!Required) return "";
     else return msgInvalid;
   }

   if (val.indexOf("@",0) < 0 || val.indexOf(".")<0) 
   {
      msg = msgInvalid;
   }
   return msg;
}

function FDK_AddEmailValidation(FormName,FormElementName,Required,SetFocus,ErrorMsg)  {
  var ValString = "FDK_ValidateEmail("+FormElementName+","+Required+","+ErrorMsg+")"
  FDK_AddToValidateArray(FormName,eval(FormElementName),ValString,SetFocus)
}
function FDK_ValidateRadio(RadioGroup,ErrorMsg)
{
	var msg = ErrorMsg;

    for (x=0;x<RadioGroup.length;x++)  {
		if (RadioGroup[x].checked)  {
			msg=""
		} 
	}
	return msg;
}

function FDK_AddRadioValidation(FormName,FormElementName,SetFocus,ErrorMsg)  {
  var ValString = "FDK_ValidateRadio("+FormElementName+","+ErrorMsg+")"
  FDK_AddToValidateArray(FormName,eval(FormElementName + '[0]'),ValString,SetFocus)
}
// Example: obj = findObj("image1");

function findObj(theObj, theDoc)

{

  var p, i, foundObj;

  

  if(!theDoc) theDoc = document;

  if( (p = theObj.indexOf("?")) > 0 && parent.frames.length)

  {

    theDoc = parent.frames[theObj.substring(p+1)].document;

    theObj = theObj.substring(0,p);

  }

  if(!(foundObj = theDoc[theObj]) && theDoc.all) foundObj = theDoc.all[theObj];

  for (i=0; !foundObj && i < theDoc.forms.length; i++) 

    foundObj = theDoc.forms[i][theObj];

  for(i=0; !foundObj && theDoc.layers && i < theDoc.layers.length; i++) 

    foundObj = findObj(theObj,theDoc.layers[i].document);

  if(!foundObj && document.getElementById) foundObj = document.getElementById(theObj);

  

  return foundObj;

}


// * Dependencies * 

// this function requires the following snippets:

// JavaScript/readable_MM_functions/findObj

//

// Accepts a variable number of arguments, in triplets as follows:

// arg 1: simple name of a layer object, such as "Layer1"

// arg 2: ignored (for backward compatibility)

// arg 3: 'hide' or 'show'

// repeat...

//

// Example: showHideLayers(Layer1,'','show',Layer2,'','hide');

function showHideLayers()

{ 

  var i, visStr, obj, args = showHideLayers.arguments;

  for (i=0; i<(args.length-2); i+=3)

  {

    if ((obj = findObj(args[i])) != null)

    {

      visStr = args[i+2];

      if (obj.style)

      {

        obj = obj.style;

        if(visStr == 'show') visStr = 'block';

        else if(visStr == 'hide') visStr = 'none';

      }

      obj.display = visStr;

    }

  }

}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}


function MM_changeProp(objName,x,theProp,theValue) { //v6.0
  var obj = MM_findObj(objName);
  if (obj && (theProp.indexOf("style.")==-1 || obj.style)){
    if (theValue == true || theValue == false)
      eval("obj."+theProp+"="+theValue);
    else eval("obj."+theProp+"='"+theValue+"'");
  }
}

function FDK_Validate(FormName, stopOnFailure, AutoSubmit, ErrorHeader)
{
 var theFormName = FormName;
 var theElementName = "";
 if (theFormName.indexOf(".")>=0)  
 {
   theElementName = theFormName.substring(theFormName.indexOf(".")+1)
   theFormName = theFormName.substring(0,theFormName.indexOf("."))
 }
 var ValidationCheck = eval("document."+theFormName+".ValidateForm")
 if (ValidationCheck)  
 {
  var theNameArray = eval(theFormName+"NameArray")
  var theValidationArray = eval(theFormName+"ValidationArray")
  var theFocusArray = eval(theFormName+"FocusArray")
  var ErrorMsg = "";
  var FocusSet = false;
  var i
  var msg
    
 
        // Go through the Validate Array that may or may not exist
        // and call the Validate function for all elements that have one.
  if (String(theNameArray)!="undefined")
  {
   for (i = 0; i < theNameArray.length; i ++)
   {
    msg="";
    if (theNameArray[i].name == theElementName || theElementName == "")
    {
      msg = eval(theValidationArray[i]);
    }
    if (msg != "")
    {
     ErrorMsg += "\n"+msg;                   
     if (stopOnFailure == "1") 
     {
       if (theFocusArray[i] && !FocusSet)  
      {
       FocusSet=true;
       theNameArray[i].focus();
      }
      alert(ErrorHeader+ErrorMsg);
      document.MM_returnValue = false; 
      break;
     }
     else  
     {
      if (theFocusArray[i] && !FocusSet)  
      {
       FocusSet=true;
       theNameArray[i].focus();
      }
     }
    }
   }
  }
  if (ErrorMsg!="" && stopOnFailure != "1") 
  {
   alert(ErrorHeader+ErrorMsg);
  }
  document.MM_returnValue = (ErrorMsg==""); 
  if (document.MM_returnValue && AutoSubmit)  
  {
   eval("document."+FormName+".submit()")
  }
 }
}

/*"FDK_AddAlphaNumericValidation('booking','document.booking.contact_name',true,true,'\'Please enter letters and numbers only. Special Characters are not allowed.\'')" 

"FDK_AddInternationalPhoneValidation('booking','document.booking.contact_name',true,true,'\'Please enter a valid phone number.\'')"*/

//calendar functions
//function catcalc(cal) {
//my mod
function catcalc(cal){
//need to add switch so that only does anything if airport or coastal selected
var date = cal.date;
var time = date.getTime()
// use the _other_ field
var field = document.getElementById("arr_date");
if (journeyswitch=='airport')
{
if (field == cal.params.inputField) {
field = document.getElementById("departure_date");
//time -= Date.WEEK; // substract one week
} else {
time += Date.WEEK + Date.WEEK; // add two weeks
}
var date2 = new Date(time);
field.value = date2.print("%d/%m/%Y");
}
if (journeyswitch=='coastal')
{
//hack for coastal 
field = document.getElementById("ret_date");
if (field == cal.params.inputField) {
field = document.getElementById("departure_date");
//time -= Date.WEEK; // substract one week
} else {
time += Date.WEEK ; // add one weeks
}
date2 = new Date(time);
field.value = date2.print("%d/%m/%Y");
}
}
//onload code
function onformload()
{
	
Calendar.setup({
inputField : "departure_date", //*
ifFormat : "%d/%m/%Y %I:%M %p",
showsTime : false,
//button : "f_trigger_b", //*
step : 1,
onUpdate : catcalc
});

};
// global var set up
var journeyswitch ='';
//return true;