var slideShow,numberOfPages=0,currentPage=0;

window.addEvent('domready',function(){

	if($('slideShow')){

		slideShow=new Slideshow('slideShow',data,{
		
			'height':520,
			'width':745,
			'hu':'/biomechanix/images/',
			'delay':10000,
			'resize':'height',
			'controller':true
		
		});
		
		var thumbs=$('thumbnails').getElements('.thumbnail');
		numberOfPages=Math.ceil(thumbs.length/5);
		thumbs.each(function(value,key){
		
			value.addEvent('click',function(){
			
				slideShow.go(this.id.replace("thumbnail_",""));
			
			});
		
		});
		
		$('downArrow').addEvent('click',function(){
		
			new Fx.Tween('thumbnailsInner').start('margin-top',-currentPage*525,-(currentPage+1)*525);
			currentPage++;
			toggleButtons();
		
		});
		
		$('upArrow').addEvent('click',function(){
		
			new Fx.Tween('thumbnailsInner').start('margin-top',-currentPage*525,-(currentPage-1)*525);
			currentPage--;
			toggleButtons();
		
		});
		
		toggleButtons();
		
	}
	
	if($('sendBtn')){
	
		$('sendBtn').addEvent('click',function(){
		
			sendMessage();
		
		});
	
	}
	
	if($('loginBtn')){
	
		$('loginBtn').addEvent('click',function(){
		
			login();
		
		});
	
	}

});

function toggleButtons(){

	$('upArrow').style.display=currentPage==0?'none':'';
	$('downArrow').style.display=currentPage==numberOfPages-1?'none':'';

}

function sendMessage(){

	var queryData=$H({
	
		'name':$('name').value,
		'email':$('email').value,
		'message':$('message').value
	
	});
	
	var request=new Request({
	
		'data':queryData,
		'method':'post',
		'url':'send.php',
		'onSuccess':function(response){
		
			$('contactForm').set('html','Thank you for your message. I\'ll get back to you real soon');
		
		}
	
	}).send();

}

function login(){

	var queryData=$H({
	
		'username':$('username').value,
		'password':$('password').value
	
	});
	
	var request=new Request({
	
		'data':queryData,
		'method':'post',
		'url':'login.php',
		'onSuccess':function(response){
		
			location.href='/en/';
		
		}
	
	}).send();

}