<!-- 

function emailCheck (emailStr) {
	
	/* The following variable tells the rest of the function whether or not
	to verify that the address ends in a two-letter country or well-known
	TLD.  1 means check it, 0 means don't. */
	
	var checkTLD=1;
	
	/* The following is the list of known TLDs that an e-mail address must end with. */
	
	var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
	
	/* 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. */
	
	return ("Email address seems incorrect (check @ and .'s)");
	// return false;
	}
	var user=matchArray[1];
	var domain=matchArray[2];
	
	// Start by checking that only basic ASCII characters are in the strings (0-127).
	
	for (i=0; i<user.length; i++) {
	if (user.charCodeAt(i)>127) {
	return("Ths username contains invalid characters.");
	// return false;
	   }
	}
	for (i=0; i<domain.length; i++) {
	if (domain.charCodeAt(i)>127) {
	return("Ths domain name contains invalid characters.");
	// return false;
	   }
	}
	
	// See if "user" is valid 
	
	if (user.match(userPat)==null) {
	
	// user is not valid
	
	return("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) {
	return("Destination IP address is invalid!");
	//return false;
	   }
	}
	return true;
	}
	
	// Domain is symbolic name.  Check if it's valid.
	 
	var atomPat=new RegExp("^" + atom + "$");
	var domArr=domain.split(".");
	var len=domArr.length;
	for (i=0;i<len;i++) {
	if (domArr[i].search(atomPat)==-1) {
	return("The domain name does not seem to be valid.");
	//return false;
	   }
	}
	
	/* domain name seems valid, but now make sure that it ends in a
	known top-level domain (like com, edu, gov) or a two-letter word,
	representing country (uk, nl), and that there's a hostname preceding 
	the domain or country. */
	
	if (checkTLD && domArr[domArr.length-1].length!=2 && 
	domArr[domArr.length-1].search(knownDomsPat)==-1) {
	return("The address must end in a well-known domain or two letter " + "country.");
	//return false;
	}
	
	// Make sure there's a host name preceding the domain.
	
	if (len<2) {
	return("This address is missing a hostname!");
	// return false;
	}
	
	// If we've gotten this far, everything's valid!
	return true;
}

function update(combo) {
	
	from_destination = combo.value;
	to_prefix = 'to_row_';
	
	for(i=1; i<5; i++) {
		this_iter = to_prefix + i;
		document.getElementById(this_iter).style.display = 'none';
	}
	
	to_destination = to_prefix + from_destination;
	to_destination_obj = document.getElementById(to_destination);
	
	if(to_destination_obj.style.display == 'none') {
		document.getElementById(to_destination).style.display = '';
	} else {
		document.getElementById(to_destination).style.display = 'none';
	}
	
}

function validate(form, type) {
		
	your_name = document.getElementById('your_name');
	your_email = document.getElementById('your_email');
	your_telephone = document.getElementById('your_telephone');
		
	if(type == 'shared') {
		travel_from = document.getElementById('travel_from');
		travel_to_prefix = 'travel_to_';
		
		if(travel_from.value == 1) {
			travel_to_field = travel_to_prefix + travel_from.value;
			travel_to = document.getElementById(travel_to_field);
		} else if(travel_from.value == 2) {
			travel_to_field = travel_to_prefix + travel_from.value;
			travel_to = document.getElementById(travel_to_field);
		} else if(travel_from.value == 3) {
			travel_to_field = travel_to_prefix + travel_from.value;
			travel_to = document.getElementById(travel_to_field);
		} else if(travel_from.value == 4) {
			travel_to_field = travel_to_prefix + travel_from.value;
			travel_to = document.getElementById(travel_to_field);
		} 
		
		if(your_name.value == '') {
			alert('Please enter your name.');
			your_name.focus();
		} else if(your_email.value == '') {
			alert('Please enter your email.');
			your_email.focus();
		} else if(emailCheck(your_email.value) != true) {
			alert(emailCheck(your_email.value));
			your_email.focus();
		} else if(your_telephone.value == '') {
			alert('Please enter your telephone.');
			your_telephone.focus();
		} else if(travel_from.value == 0) {
			alert('Please select where you would like to travel from.');
		} else if(travel_to.value == 0) {
			alert('Please select where you would like to travel to.');
		} else {
			this.submit();
		}
		
	} 

	if(type == 'private') {
		travel_from = document.getElementById('travel_from');
		travel_to = document.getElementById('travel_to');	
		travel_to_1 = document.getElementById('travel_to_1');	
		travel_to_2 = document.getElementById('travel_to_2');	
		travel_to_3 = document.getElementById('travel_to_3');	
		
		if(your_name.value == '') {
			alert('Please enter your name.');
			your_name.focus();
		} else if(your_email.value == '') {
			alert('Please enter your email.');
			your_email.focus();
		} else if(emailCheck(your_email.value) != true) {
			alert(emailCheck(your_email.value));
			your_email.focus();
		} else if(your_telephone.value == '') {
			alert('Please enter your telephone.');
			your_telephone.focus();
		} else if(travel_from.value == 0) {
			alert('Please select where you would like to travel from.');
		} else if(travel_to.value == 0) {
			alert('Please select where you would like to travel to.');
		} else if(travel_to.value == travel_from.value && travel_to_1.value == 0 && travel_to_2.value == 0 && travel_to_3.value == 0) {
			alert('Travel From and To cannot be the same unless stop over is defined.');
		} else {
			this.submit();
		}
		
	} 

	if(type == 'contactus') {
		guest_name = document.getElementById('guest_name');
		guest_email = document.getElementById('guest_email');	
		guest_phone = document.getElementById('guest_phone');	
		guest_query = document.getElementById('guest_query');	
		
		if(guest_name.value == '') {
			alert('Please enter your name.');
			guest_name.focus();
		} else if(guest_email.value == '') {
			alert('Please enter your email.');
			guest_email.focus();
		} else if(emailCheck(guest_email.value) != true) {
			alert(emailCheck(guest_email.value));
			guest_email.focus();
		} else if(guest_phone.value == '') {
			alert('Please enter your telephone.');
			guest_phone.focus();
		} else if(guest_query.value == '') {
			alert('Please type in your query.');
		} else {
			this.submit();
		}
		
	} 

		
}

function popup(url) {
	window.open(url, 'zantas', 'width=525,height=400, resizable=yes, scrollbars=yes');
}
-->