var hideObject;
var currentMenu;

function popup(url, name, width, height, x, y) {
	settings="titlebar=no, toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=no, left="+x+", top="+y+", screenX="+x+", screenY="+y+", width="+width+", height="+height;
	
	NewWindow=window.open(url,name,settings);
}

function showObject(id) {
	if (currentMenu != null)
	{
		currentMenuObject = document.getElementById(currentMenu);
		clearTimeout(currentMenuObject.timer);
		hideObject(currentMenu);
	}
   toShow = document.getElementById(id);
   currentMenu = id;
   toShow.style.visibility = "visible";
   clearTimeout(toShow.timer);
}

function hideObject(id) {
   document.getElementById(id).style.visibility = "hidden";
}

function hideObjectDelayed(id, delay) {
   toHide = document.getElementById(id);
   hideFunction = "hideObject('" + id + "')";
   toHide.timer = setTimeout(hideFunction, delay);
}

function check(id)
{
	 document.getElementById(id).checked = true ;
}

function printpage() {
	window.print();  
}

function roll_on(rollImage, filetype)
{
	rollImage.src = "images/" + rollImage.getAttribute('id') + "_on." + filetype;
}

function roll_off(rollImage, filetype)
{
	rollImage.src = "images/" + rollImage.getAttribute('id') + "." + filetype;
}


function roll(id,rollImage) {
	product = document.getElementById(id);
	product.setAttribute("src", rollImage);
}


function changeBackground(color) {
	 this.style.backgroundColor=color;
}


function validate() {
	
	vName=contactform.name.value;
	if (vName=='') {
		alert('Please enter your name.');
		event.returnValue=false;
		exit();
	}
	
	vEmail=contactform.email.value;
	if (vEmail=='') {
		alert('Please enter your email address.');
		event.returnValue=false;
		exit();
	}
	
	vSubject=contactform.subject.value;
	if (vSubject=='') {
		alert('Please enter a subject.');
		event.returnValue=false;
		exit();
	}
	
	vEnquiry=contactform.enquiry.value;
	if (vEnquiry=='') {
		alert('Please enter your enquiry.');
		event.returnValue=false;
		exit();
	}
	

}



//rolling image functions

var slideshow2_noFading = false;
var slideshow2_timeBetweenSlides = 500;	// Amount of time between each image(1000 = 1 second)
var slideshow2_fadingSpeed = 10;	// Speed of fading	(Lower value = faster)

var slideshow2_galleryContainer;	// Reference to the gallery div
var slideshow2_galleryWidth;	// Width of gallery
var slideshow2_galleryHeight;	// Height of galery
var slideshow2_slideIndex = -1;	// Index of current image shown
var slideshow2_slideIndexNext = false;	// Index of next image shown
var slideshow2_imageDivs = new Array();	// Array of image divs(Created dynamically)
var slideshow2_currentOpacity = 100;	// Initial opacity
var slideshow2_imagesInGallery = false;	// Number of images in gallery
var Opera = navigator.userAgent.indexOf('Opera')>=0?true:false;

function createParentDivs(imageIndex)
{
	if(imageIndex==slideshow2_imagesInGallery){			
		showGallery();
	}else{
		var imgObj = document.getElementById('galleryImage' + imageIndex);	
		if(Opera)imgObj.style.position = 'static';
		slideshow2_imageDivs[slideshow2_imageDivs.length] =  imgObj;
		imgObj.style.visibility = 'hidden';	
		imageIndex++;
		createParentDivs(imageIndex);	
	}		
}

function showGallery()
{
	if(slideshow2_slideIndex==-1)slideshow2_slideIndex=0; else slideshow2_slideIndex++;	// Index of next image to show
	if(slideshow2_slideIndex==slideshow2_imageDivs.length)slideshow2_slideIndex=0;
	slideshow2_slideIndexNext = slideshow2_slideIndex+1;	// Index of the next next image
	if(slideshow2_slideIndexNext==slideshow2_imageDivs.length)slideshow2_slideIndexNext = 0;
	
	slideshow2_currentOpacity=100;	// Reset current opacity

	// Displaying image divs
	slideshow2_imageDivs[slideshow2_slideIndex].style.visibility = 'visible';
	if(Opera)slideshow2_imageDivs[slideshow2_slideIndex].style.display = 'inline';
	if(navigator.userAgent.indexOf('Opera')<0){
		slideshow2_imageDivs[slideshow2_slideIndexNext].style.visibility = 'visible';
	}
	
	if(document.all){	// IE rules
		slideshow2_imageDivs[slideshow2_slideIndex].style.filter = 'alpha(opacity=100)';
		slideshow2_imageDivs[slideshow2_slideIndexNext].style.filter = 'alpha(opacity=1)';
	}else{
		slideshow2_imageDivs[slideshow2_slideIndex].style.opacity = 0.99;	// Can't use 1 and 0 because of screen flickering in FF
		slideshow2_imageDivs[slideshow2_slideIndexNext].style.opacity = 0.01;
	}		
	

	setTimeout('revealImage()',slideshow2_timeBetweenSlides);		
}

function revealImage()
{
	if(slideshow2_noFading){
		slideshow2_imageDivs[slideshow2_slideIndex].style.visibility = 'hidden';
		if(Opera)slideshow2_imageDivs[slideshow2_slideIndex].style.display = 'none';
		showGallery();
		return;
	}
	slideshow2_currentOpacity--;
	if(document.all){
		slideshow2_imageDivs[slideshow2_slideIndex].style.filter = 'alpha(opacity='+slideshow2_currentOpacity+')';
		slideshow2_imageDivs[slideshow2_slideIndexNext].style.filter = 'alpha(opacity='+(100-slideshow2_currentOpacity)+')';
	}else{
		slideshow2_imageDivs[slideshow2_slideIndex].style.opacity = Math.max(0.01,slideshow2_currentOpacity/100);	// Can't use 1 and 0 because of screen flickering in FF
		slideshow2_imageDivs[slideshow2_slideIndexNext].style.opacity = Math.min(0.99,(1 - (slideshow2_currentOpacity/100)));
	}
	if(slideshow2_currentOpacity>0){
		setTimeout('revealImage()',slideshow2_fadingSpeed);
	}else{
		slideshow2_imageDivs[slideshow2_slideIndex].style.visibility = 'hidden';	
		if(Opera)slideshow2_imageDivs[slideshow2_slideIndex].style.display = 'none';		
		showGallery();
	}
}

function initImageGallery()
{
	slideshow2_galleryContainer = document.getElementById('imageSlideshowHolder');
	slideshow2_galleryWidth = slideshow2_galleryContainer.clientWidth;
	slideshow2_galleryHeight = slideshow2_galleryContainer.clientHeight;
	galleryImgArray = slideshow2_galleryContainer.getElementsByTagName('IMG');
	for(var no=0;no<galleryImgArray.length;no++){
		galleryImgArray[no].id = 'galleryImage' + no;
	}
	slideshow2_imagesInGallery = galleryImgArray.length;
	createParentDivs(0);		
	
}

//end rolling image functions