window.onload = jsFnOnload;

function jsFnOnload()
{
	if (document.getElementById)
	{		  
		var tyreselector = document.getElementById("tyreselectorform");
 		if (tyreselector != null) JSFnSetUpTSForm();
		
    	var menu = document.getElementById("mainmenu");
 		if (menu != null) 
		{
			var aLis = menu.getElementsByTagName("li");
			for(aLiIndex = 0; aLiIndex < aLis.length; aLiIndex++)
			{
				var aSubMenus = aLis[aLiIndex].getElementsByTagName("ul");
				if (aSubMenus.length > 0)
				{
					aLis[aLiIndex].onmouseover = JSFnMenuLiOver;
					aLis[aLiIndex].onmouseout = JSFnMenuLiOut;
				}
				else
				{
					aLis[aLiIndex].onmouseover = JSFnMenuLiHover;
					aLis[aLiIndex].onmouseout = JSFnMenuLiHoverOut;
				}
			}
		}
		
		// Index for clicking!
		var aForm = document.getElementById("indexlogin");
		if (aForm != null) 
		{
			var aInput = document.getElementById("LoginEmail");
			if (aInput != null) aInput.onfocus = function(){this.value = ''};
			var aInput = document.getElementById("LoginPassword");
			if (aInput != null) aInput.onfocus = function(){this.value = ''};
		}
			
		// Apply form checking
		var aForm = document.getElementById("registrationform");
		if (aForm != null) aForm.onsubmit = JSFnCheckRegistrationForm;
		
		var aForm = document.getElementById("customerdetailsform");
		if (aForm != null) aForm.onsubmit = JSFnCheckCustomerDetailsForm;
		
		var aForm = document.getElementById("promoform");
		if (aForm != null) aForm.onsubmit = JSFnCheckPromoForm;
		
		var aForm = document.getElementById("contactform");
		if (aForm != null) aForm.onsubmit = JSFnCheckContactForm;
		
		var aForm = document.getElementById("warrantyform");
		if (aForm != null) aForm.onsubmit = JSFnCheckWarrantyForm;

		//*** View item in new window *************************************************************************************
		
		var aNewWindow = document.getElementsByTagName("a");
 		if (aNewWindow != null) 
		{
			for(adocindex=0;adocindex<aNewWindow.length;adocindex++)
			{
				aStrLength = aNewWindow[adocindex].href.length;
				if(aNewWindow[adocindex].className=='newwindow') aNewWindow[adocindex].onclick = JSFnNewWindow;
				if(aNewWindow[adocindex].href.substr((aStrLength-3),3)=='pdf') aNewWindow[adocindex].onclick = JSFnNewWindow;
			}
		}				
		
		//******************************************************************************************************************
	}
	
	JSFnAddLightboxMarkup();
}
//********************************************************************************************************************************
/* Pop Up Window */
function JSFnNewWindow()
{
	var aWindow = window.open(this.href, 'ViewDocuments', 'scrollbars=yes, menubar=no, resizeable=yes, toolbar=no, width=800px, height=800px')
	aWindow.focus();
	return false;
}
//********************************************************************************************************************************

function JSFnMenuLiOver()
{
	this.className += ' hover';
	var aSubMenus = this.getElementsByTagName("ul");
	if (aSubMenus.length > 0) 
	{	
		aSubMenus[0].parentNode.style.display = 'block';
		aSubMenus[0].style.display = 'block';
		
	}
}

function JSFnMenuLiOut()
{
	this.className = this.className.substring(0, this.className.length - 6);
	var aSubMenus = this.getElementsByTagName("ul");
	if (aSubMenus.length > 0)
	{
		aSubMenus[0].parentNode.style.display = 'none';
		aSubMenus[0].style.display = 'none';
	}
}

function JSFnMenuLiHover()
{
	this.className += ' hover';
}

function JSFnMenuLiHoverOut()
{
	this.className = this.className.substring(0, this.className.length - 6);
}

function JSFnSetUpTSForm()
{
	var aSelect = document.getElementById("Make");
	if (aSelect != null) aSelect.onchange = JSFnSendTSForm;
	var aSelect = document.getElementById("Model");
	if (aSelect != null) aSelect.onchange = JSFnSendTSForm;
	var aSelect = document.getElementById("TyrePosition");
	if (aSelect != null) aSelect.onchange = JSFnSendTSForm;
	var aSubmitButton = document.getElementById("tssearch");
	if (aSubmitButton != null) aSubmitButton.style.display = 'none';	
}

function JSFnSendTSForm()
{
	var tyreselector = document.getElementById("tyreselectorform");
	if (tyreselector != null) tyreselector.submit();
}

function JSFnCheckRegistrationForm()
{
	aPassed = JSFnValidateForm(aRegistrationFields);
	return aPassed;
}

function JSFnCheckCustomerDetailsForm()
{
	aPassed = JSFnValidateForm(aCustomerDetailsFields);
	return aPassed;
}

function JSFnCheckPromoForm()
{
	aPassed = JSFnValidateForm(aPromoFields);
	return aPassed;
}

function JSFnCheckContactForm()
{
	aPassed = JSFnValidateForm(aContactFields);
	return aPassed;
}

function JSFnCheckWarrantyForm()
{
	aPassed = JSFnValidateForm(aWarrantyFields);
	return aPassed;
}

function JSFnValidateForm(aRequiredFields)
{
	for (aIndex = 0; aIndex < aRequiredFields.length; aIndex = aIndex + 2)
	{
		currElement = document.getElementById(aRequiredFields[aIndex]);
		if (currElement != null)
		{
			if  (   (   (currElement.type == 'text')
				     && (currElement.value == ''))
				 || (   (currElement.type == 'password')
				     && (currElement.value == ''))
				 || (   (currElement.type == 'checkbox')
				     && (currElement.checked == false))
				 || (   (currElement.type == 'file')
				     && (currElement.value == ''))
				 || (   (currElement.type == 'textarea')
				     && (currElement.value == ''))
				 || (   (currElement.type == 'select-one')
				     && (currElement.value == '')))
			{
				alert(aRequiredFields[aIndex + 1]);
				return false;
			}
			else if (currElement.type == 'radio')
			{
				aIndex = aIndex + 2;
				if (!currElement.checked)
				{
					currElement = document.getElementById(aRequiredFields[aIndex]);
					if ((currElement.type == 'radio') && (!currElement.checked))
					{
						alert(aRequiredFields[aIndex + 1]);
						return false;
					}
				}
			}
		}
	}
	return true;
}
/*************************************************************************************************************************/

/*************************************************************************************************************************/
/*** Light box function **************************************************************************************************/
function JSFnShowHeaderImage(imageName)
{
	var aOverlay = document.getElementById('overlay');
	if(aOverlay != null)
	{
		aOverlay.style.display = 'block';
		
		bod	= document.getElementsByTagName('body')[0];
		
		imagePopout = document.createElement('div');
		imagePopout.id = "ImagePopout";
				
		aImage = document.createElement('img');
		aImage.id = "popoutImage";
		aImage.src = "documents/thumbs/" + imageName;
						
		aOverlay.onclick = JSFnCloseHeaderImage;
		imagePopout.onclick = JSFnCloseHeaderImage;
			
		imagePopout.appendChild(aImage);
				
		bod.appendChild(imagePopout);
		bod.style.height = '100%';
  
		htm = document.getElementsByTagName('html')[0];
		htm.style.height = '100%';
		
		aScrollBarPosition = JsFnScrollingDetector();
		
		imagePopout.style.top = aScrollBarPosition + 150 + 'px';
	}
}

function JSFnCloseHeaderImage()
{
	var aOverlay = document.getElementById('overlay');	
	var aImageHolder = document.getElementById('ImagePopout');
	var aImage = document.getElementById('popoutImage');
	
	if ((aOverlay != null) && (aImageHolder != null) && (aImage != null)) 
	{
		aImageHolder.removeChild(aImage);
		aImageHolder.parentNode.removeChild(aImageHolder);
		aOverlay.style.display = 'none';
	}
}

function JSFnAddLightboxMarkup() 
{
	bod 			= document.getElementsByTagName('body')[0];
	overlay 		= document.createElement('div');
	overlay.id		= 'overlay';
	lb				= document.createElement('div');
	lb.id			= 'lightbox';
	lb.className 	= 'loading';
	
	bod.appendChild(overlay);
	bod.appendChild(lb);
}

function JsFnScrollingDetector()
{
	if (navigator.appName == "Microsoft Internet Explorer") 
	{
		if (document.documentElement && !document.documentElement.scrollTop) aScrollPosition = document.documentElement.scrollTop;// IE6 +4.01 but no scrolling going on
		else if (document.documentElement && document.documentElement.scrollTop) aScrollPosition = document.documentElement.scrollTop;// IE6 +4.01 and user has scrolled
		else if (document.body && document.body.scrollTop) aScrollPosition = document.body.scrollTop;// IE5 or DTD 3.2	
	}
	else aScrollPosition = window.pageYOffset;
		
	return aScrollPosition;
}

/*
	Developed by Robert Nyman, http://www.robertnyman.com
	Code/licensing: http://code.google.com/p/getelementsbyclassname/
*/
/*var getElementsByClassName = function (className, tag, elm){
	if (document.getElementsByClassName) {
		getElementsByClassName = function (className, tag, elm) {
			elm = elm || document;
			var elements = elm.getElementsByClassName(className),
				nodeName = (tag)? new RegExp("\\b" + tag + "\\b", "i") : null,
				returnElements = [],
				current;
			for(var i=0, il=elements.length; i<il; i+=1){
				current = elements[i];
				if(!nodeName || nodeName.test(current.nodeName)) {
					returnElements.push(current);
				}
			}
			return returnElements;
		};
	}
	else if (document.evaluate) {
		getElementsByClassName = function (className, tag, elm) {
			tag = tag || "*";
			elm = elm || document;
			var classes = className.split(" "),
				classesToCheck = "",
				xhtmlNamespace = "http://www.w3.org/1999/xhtml",
				namespaceResolver = (document.documentElement.namespaceURI === xhtmlNamespace)? xhtmlNamespace : null,
				returnElements = [],
				elements,
				node;
			for(var j=0, jl=classes.length; j<jl; j+=1){
				classesToCheck += "[contains(concat(' ', @class, ' '), ' " + classes[j] + " ')]";
			}
			try	{
				elements = document.evaluate(".//" + tag + classesToCheck, elm, namespaceResolver, 0, null);
			}
			catch (e) {
				elements = document.evaluate(".//" + tag + classesToCheck, elm, null, 0, null);
			}
			while ((node = elements.iterateNext())) {
				returnElements.push(node);
			}
			return returnElements;
		};
	}
	else {
		getElementsByClassName = function (className, tag, elm) {
			tag = tag || "*";
			elm = elm || document;
			var classes = className.split(" "),
				classesToCheck = [],
				elements = (tag === "*" && elm.all)? elm.all : elm.getElementsByTagName(tag),
				current,
				returnElements = [],
				match;
			for(var k=0, kl=classes.length; k<kl; k+=1){
				classesToCheck.push(new RegExp("(^|\\s)" + classes[k] + "(\\s|$)"));
			}
			for(var l=0, ll=elements.length; l<ll; l+=1){
				current = elements[l];
				match = false;
				for(var m=0, ml=classesToCheck.length; m<ml; m+=1){
					match = classesToCheck[m].test(current.className);
					if (!match) {
						break;
					}
				}
				if (match) {
					returnElements.push(current);
				}
			}
			return returnElements;
		};
	}
	return getElementsByClassName(className, tag, elm);
};*/