// Keystrokes JavaScript Functions
// Written by Matt R 14/06/2007

var AjaxForm = 0;


function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      if (oldonload) {
        oldonload();
      }
      func();
    }
  }
}

addLoadEvent(function() {
	toggle_companyfield(); 	
	toggle_otherfield();
});


//
// Contact Form Functions
//
function emailCheck (emailStr) {
	var emailPat=/^(.+)@(.+)$/
	var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
	var validChars="\[^\\s" + specialChars + "\]"
	var quotedUser="(\"[^\"]*\")"
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
	var atom=validChars + '+'
	var word="(" + atom + "|" + quotedUser + ")"
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")
	var matchArray=emailStr.match(emailPat)
	if (matchArray==null) {
		alert("Email address seems incorrect (check @ and .'s)")
		return false
	}
	var user=matchArray[1]
	var domain=matchArray[2]

	if (user.match(userPat)==null) {
		alert("The username doesn't seem to be valid.")
		return false
	}
	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
	}
	
	var domainArray=domain.match(domainPat)
	if (domainArray==null) {
		alert("The domain name doesn't seem to be valid.")
		return false
	}
	
	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) {
	   alert("The address must end in a three-letter domain, or two letter country.")
	   return false
	}
	if (len<2) {
	   var errStr="This address is missing a hostname!"
	   alert(errStr)
	   return false
	}
	return true;
}

function toggle_companyfield()
{
	var myform = document.contact_form;
	
	//alert('checked val = ' + myform.organisation.checked);
	
	if (myform.organisation.checked == true)
	{
		new Effect.Appear('company_name');
	}
	else
	{
		new Effect.Fade('company_name');
	}
}

function toggle_otherfield()
{
	var myform = document.contact_form;
	
	//alert('checked val = ' + myform.organisation.checked);
	
	if (myform.wheredidyouhearother.checked == true)
	{
		new Effect.Appear('please_specify');
	}
	else
	{
		new Effect.Fade('please_specify');
	}
}

function submit_contactform()
{
	// Setup Defaults
	var myform = document.contact_form;
	var ErrorColour = '#FF0000';
	
	// Reset all Background Colours
	
	myform.name.style.backgroundColor = '';
	myform.telephone.style.backgroundColor = '';
	myform.emailaddress.style.backgroundColor = '';
	myform.company.style.backgroundColor = '';
		
	// Check all fields
	
	var checked = 1;
		
	if (checked == 1 && myform.name.value == "")
	{
		myform.name.style.backgroundColor = ErrorColour;
		myform.name.focus();
		alert('You must enter a name.');
		checked = 0;
	}
	if (checked == 1 && myform.name.value.length < 3)
	{
		myform.name.style.backgroundColor = ErrorColour;
		myform.name.focus();
		alert('You must enter a name that is longer than 3 characters.')
		checked = 0;
	}
	if (checked == 1 && myform.emailaddress.value == "")
	{
		myform.emailaddress.style.backgroundColor = ErrorColour;
		myform.emailaddress.focus();
		alert('You must enter an email address.');
		checked = 0;
	}
	
	var emailaddress = myform.emailaddress.value;
	
	if (checked == 1 && emailCheck(emailaddress) != true)
	{
		myform.emailaddress.style.backgroundColor = ErrorColour;
		myform.emailaddress.focus();
		alert('You must enter a valid email address .');
		checked = 0;
	}
	if (checked == 1 && myform.telephone.value == "")
	{
		//alert('You must enter an email address.')
		var confirm_tel = confirm('Are you sure you want to submit the form without a telephone number included?');
		if (!confirm_tel)
		{
			myform.telephone.style.backgroundColor = ErrorColour;
			myform.telephone.focus();
			checked = 0;
		}
	}
	
	// Check Reason Radios
	
	var onechecked_enquiringreason = 0;
		
	for (i=0; i < myform.enquiringreason.length; i++) 
	{	
		if (myform.enquiringreason[i].checked) 
		{
			onechecked_enquiringreason = 1;
			var enquiring_reason = myform.enquiringreason[i].value;
		}
	}
	
	if (checked == 1 && onechecked_enquiringreason != 1)
	{
		alert('You must select a reason for enquiring.');
		checked = 0;
	}
	
	if (checked == 1 && myform.organisation.checked == true && myform.company.value == "")
	{
		myform.company.style.backgroundColor = ErrorColour;
		myform.company.focus();
		alert('You must specify your company or organisation name.');
		checked = 0;
	}
	
	// Check Where did you hear Radios
	
	var onechecked_wheredidyouhear = 0;
		
	for (i=0; i < myform.wheredidyouhear.length; i++) 
	{	
		if (myform.wheredidyouhear[i].checked) 
		{
			onechecked_wheredidyouhear = 1;
			var wheredidyouhear_reason = myform.wheredidyouhear[i].value;
		}
	}
	
	if (checked == 1 && onechecked_wheredidyouhear != 1)
	{
		alert('You must specify where you heard about us.');
		checked = 0;
	}
	
	if (checked == 1 && myform.wheredidyouhearother.checked == true && myform.other_specify.value == "")
	{
		myform.other_specify.style.backgroundColor = ErrorColour;
		myform.other_specify.focus();
		alert('You must specify where you heard about us in the \'other\' box.');
		checked = 0;
	}
	
	if (checked == 1 && myform.code.value == "")
	{
		myform.code.style.backgroundColor = ErrorColour;
		myform.code.focus();
		alert('You must enter the security code to continue.');
		checked = 0;
	}
	
	// If all fields checked, submit form via Ajax
	if (checked == 1)
	{
		if (AjaxForm == 1)
		{
			// Declare Variables
			var name = myform.name.value.escapeHTML();
			var emailaddress = myform.emailaddress.value.escapeHTML();
			var telephone = myform.telephone.value.escapeHTML();
			var message = myform.message.value.escapeHTML();
			
			var url = 'ajax.php?method=contact&name=' + name + '&emailaddress=' + emailaddress + '&telephone=' + telephone + '&message=' + message;
	
			new Ajax.Request(url, {
				method: 'get',
				onLoading: function() {
					$('contact_form_return').remove();
					addloader('contact_form');
				},
				onComplete: function(request) {
					document.getElementById('contact_form').innerHTML = request.responseText;
					removeloader('contact_form_loader');
				}
			});
		}
		else
		{
			document.myform.submit();
		}
	}
	
}

// This script will emulate the css :hover effect on the menu elements in IE

// The variables
var cssid = "primary-nav"; // CSS ID for the menuwrapper
var menuadd = "h";  // Character to be added to the specific classes upon hovering. So for example, if this is set to "h", class "menuparent" will become "menuparenth" when hovered over.
var menuh = "menuh"; // Classname for hovering over all other menu items

if (window.attachEvent) window.attachEvent("onload", cssHover);

function cssHover() {
	var sfEls = document.getElementById(cssid).getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {

		sfEls[i].onmouseover=function() {
			if (this.className != "") {
				this.className = this.className + menuadd;
			}
			else {	
				this.className = menuh;
			}
		}

		sfEls[i].onmouseout=function() {
			if (this.className == menuh) {
				this.className = "";
			}
			else {
				this.className = this.className.replace(new RegExp(menuadd + "$"), "");
			}
		}
	}
}