function validateForm(sform)
{
var forename = sform.firstName.value;
var surname = sform.lastName.value;
var email = sform.emailAddress.value;
var telephone = sform.contactNumber.value

if (forename.length < 3) 
{
	alert("Please enter a first name");
	sform.firstName.focus();
	return false;
}
if (surname.length < 3) 
{
	alert("Please enter a surname");
	sform.lastName.focus();
	return false;
}
if(telephone == "")
{
	alert("Please specify phone number");
	sform.contactNumber.focus();
	return false;
}
if(!ValidateNo(telephone,"1234567890+- "))
{
	alert("Please enter a valid telephone number");
	sform.contactNumber.focus();
	return false;
}

//return true;

return emailCheck(email);
}

function validateLongForm(sform)
{
var forename = sform.firstName.value;
var surname = sform.lastName.value;
var email = sform.emailAddress.value;
var telephone = sform.Telephone.value;
var company = sform.companyName.value;
var add1 = sform.add1.value;
var add2 = sform.add2.value;
var add3 = sform.add3.value;
var postcode = sform.postcode.value;
var agree = sform.agree.checked;


if (forename.length < 3) 
{
	alert("Please enter a first name");
	sform.firstName.focus();
	return false;
}
if (surname.length < 3) 
{
	alert("Please enter a surname");
	sform.lastName.focus();
	return false;
}
if(!emailCheck(email) == true)
{
	sform.emailAddress.focus();
	return false;
}
if(telephone.length < 10)
{
	alert("Please enter a valid telephone number");
	sform.Telephone.focus();
	return false;
}
if(!ValidateNo(telephone,"1234567890+- "))
{
	alert("Please enter a valid telephone number");
	sform.Telephone.focus();
	return false;
}
if (company.length < 3)
{
	alert("Please enter a company name");
	sform.companyName.focus();
	return false;
}
if (add1.length < 3)
{
	alert("Please enter an address for this field");
	sform.add1.focus();
	return false;
}

if (postcode.length < 3)
{
	alert("Please enter a Postcode");
	sform.postcode.focus();
	return false;
}

if (agree == false)
{
	alert("Please check this box if you agree to our terms and conditions");
	sform.agree.focus();
	return false;
}
//return true;


}
function validateCanelForm(sform)
{
var surname = sform.lastName.value;
var email = sform.emailAddress.value;
var postcode = sform.postcode.value;


if(!emailCheck(email) == true)
{
	sform.emailAddress.focus();
	return false;
}
if (postcode.length < 3)
{
	alert("Please enter a Postcode");
	sform.postcode.focus();
	return false;
}

if (surname.length < 3) 
{
	alert("Please enter a surname");
	sform.lastName.focus();
	return false;
}


}

function emailCheck (emailStr) {
/* The following pattern is used to check if the entered e-mail address
   fits the user@domain format.  It also is used to separate the username
   from the domain. */
var emailPat=/^(.+)@(.+)$/
/* The following string represents the pattern for matching all special
   characters.  We don't want to allow special characters in the address. 
   These characters include ( ) < > @ , ; : \ " . [ ]    */
var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
/* The following string represents the range of characters allowed in a 
   username or domainname.  It really states which chars aren't allowed. */
var validChars="\[^\\s" + specialChars + "\]"
/* The following pattern applies if the "user" is a quoted string (in
   which case, there are no rules about which characters are allowed
   and which aren't; anything goes).  E.g. "jiminy cricket"@disney.com
   is a legal e-mail address. */
var quotedUser="(\"[^\"]*\")"
/* The following pattern applies for domains that are IP addresses,
   rather than symbolic names.  E.g. joe@[123.124.233.4] is a legal
   e-mail address. NOTE: The square brackets are required. */
var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
/* The following string represents an atom (basically a series of
   non-special characters.) */
var atom=validChars + '+'
/* The following string represents one word in the typical username.
   For example, in john.doe@somewhere.com, john and doe are words.
   Basically, a word is either an atom or quoted string. */
var word="(" + atom + "|" + quotedUser + ")"
// The following pattern describes the structure of the user
var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
/* The following pattern describes the structure of a normal symbolic
   domain, as opposed to ipDomainPat, shown above. */
var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")


/* Finally, let's start trying to figure out if the supplied address is
   valid. */

/* Begin with the coarse pattern to simply break up user@domain into
   different pieces that are easy to analyze. */
var matchArray=emailStr.match(emailPat)
if (matchArray==null) {
  /* Too many/few @'s or something; basically, this address doesn't
     even fit the general mould of a valid e-mail address. */
	alert("Email address seems incorrect (check @ and .'s)")
	return false
}

var user=matchArray[1]
var domain=matchArray[2]

// See if "user" is valid 
if (user.match(userPat)==null) {
    // user is not valid
    alert("The username doesn't seem to be valid.")
    return false
}

/* if the e-mail address is at an IP address (as opposed to a symbolic
   host name) make sure the IP address is valid. */
var IPArray=domain.match(ipDomainPat)
if (IPArray!=null) {
    // this is an IP address
	  for (var i=1;i<=4;i++) {
	    if (IPArray[i]>255) {
	        alert("Destination IP address is invalid!")
		return false
	    }
    }
    return true
}

// Domain is symbolic name
var domainArray=domain.match(domainPat)
if (domainArray==null) {
	alert("The domain name doesn't seem to be valid.")
    return false
}

/* domain name seems valid, but now make sure that it ends in a
   three-letter word (like com, edu, gov) or a two-letter word,
   representing country (uk, nl), and that there's a hostname preceding 
   the domain or country. */

/* Now we need to break up the domain to get a count of how many atoms
   it consists of. */
var atomPat=new RegExp(atom,"g")
var domArr=domain.match(atomPat)
var len=domArr.length
if (domArr[domArr.length-1].length<2 || 
    domArr[domArr.length-1].length>3) {
   // the address must end in a two letter or three letter word.
   alert("The address must end in a three-letter domain, or two letter country.")
   return false
}

// Make sure there's a host name preceding the domain.
if (len<2) {
   var errStr="This address is missing a hostname!"
   alert(errStr)
   return false
}

// If we've gotten this far, everything's valid!
return true;
}
//  End -->
function ValidateNo(NumStr, String)
{
	for(var Idx=0; Idx<NumStr.length; Idx++)
	{
		var Char = NumStr.charAt(Idx);
		var Match = false;
		for(var Idx1=0; Idx1<String.length; Idx1++)
		{
			if(Char == String.charAt (Idx1))
				Match = true;
		}
		if (!Match)
			return false;
	}
	return true;
}

function validateBookingForm(sform)
{
var forename = sform.firstName.value;
var surname = sform.lastName.value;
var address = sform.add1.value;
var email = sform.emailAddress.value;
var telephone = sform.contactNumber.value;
var postcode = sform.postcode.value;
var numChild = Number(sform.NumChild.value);

if (forename.length < 3) 
{
	alert("Please enter a First Name");
	sform.firstName.focus();
	return false;
}
if (surname.length < 3) 
{
	alert("Please enter a Last Name");
	sform.lastName.focus();
	return false;
}
if (address.length < 3)
{
	alert("Please enter an Address");
	sform.add1.focus();
	return false;
}
if(!postit(postcode)==true)
{
	sform.postcode.focus();
	return false;
}
if(!emailCheck(email)==true)
{
	sform.emailAddress.focus();
	return false;
}
if(telephone == "")
{
	alert("Please specify Telephone number");
	sform.contactNumber.focus();
	return false;
}
if(!ValidateNo(telephone,"1234567890+- "))
{
	alert("Please enter a valid Telephone number");
	sform.contactNumber.focus();
	return false;
}
if(numChild <="0")
{
	alert("You must enter more than 0");
	sform.NumChild.focus();
	return false;
}

//return true;



}

function postit(pcd){ //check postcode format is valid
 test = pcd;
 size = test.length;
 test = test.toUpperCase(); //Change to uppercase
 while (test.slice(0,1) == " ") //Strip leading spaces
  {test = test.substr(1,size-1);size = test.length
  }
 while(test.slice(size-1,size)== " ") //Strip trailing spaces
  {test = test.substr(0,size-1);size = test.length
  }
 //document.details.pcode.value = test; //write back to form field
 if (size < 6 || size > 8){ //Code length rule
  alert(test + " is not a valid postcode - wrong length");
  //document.details.pcode.focus();
  return false;
  }
 if (!(isNaN(test.charAt(0)))){ //leftmost character must be alpha character rule
   alert(test + " is not a valid postcode - cannot start with a number");
   //document.details.pcode.focus();
   return false;
  }
 if (isNaN(test.charAt(size-3))){ //first character of inward code must be numeric rule
   alert(test + " is not a valid postcode - alpha character in wrong position");
   //document.details.pcode.focus();
   return false;
  }
 if (!(isNaN(test.charAt(size-2)))){ //second character of inward code must be alpha rule
   alert(test + " is not a valid postcode - number in wrong position");
   //document.details.pcode.focus();
   return false;
  }
 if (!(isNaN(test.charAt(size-1)))){ //third character of inward code must be alpha rule
   alert(test + " is not a valid postcode - number in wrong position");
  // document.details.pcode.focus();
   return false;
  }
 if (!(test.charAt(size-4) == " ")){//space in position length-3 rule
   alert(test + " is not a valid postcode - no space or space in wrong position");
  // document.details.pcode.focus();
   return false;
   }
 count1 = test.indexOf(" ");count2 = test.lastIndexOf(" ");
 if (count1 != count2){//only one space rule
   alert(test + " is not a valid postcode - only one space allowed");
 //  document.details.pcode.focus();
   return false;
  }
//alert("Postcode Format OK");
return true;
}