var lastElement = 'slide_1';
var lastPhoto = false;
var lastImg = 'img_1';
var v1active = false;
var v2active = false;
 
  

function show(element){
	
	//alert(element);
	
	try{document.getElementById('anim').style.filter = 'alpha(opacity=50)';}catch(err){}
	//try{document.getElementById('anim').style.moz-opacity = '.80';}catch(err){}
	try{document.getElementById('anim').style.opacity = '.50';}catch(err){}
	
	if(element!=lastPhoto){
		
		var img = 'url(portfolio_images/big/'+element+'.jpg)';

		if(v1active==false && v2active==false){
			document.getElementById('portfolioViewer').style.backgroundImage = img;
			$('portfolioViewer').appear({ duration: 0.4, from: 0, to: 1 })
			v1active = true;
			v2active = false;

		}else if(v1active==false){
			document.getElementById('portfolioViewer').style.backgroundImage = img;
			$('portfolioViewer2').fade({ duration: 0.4, from: 1, to: 0 })
			$('portfolioViewer').appear({ duration: 0.4, from: 0, to: 1 })
			v1active = true;
			v2active = false;
		}else if(v2active==false){
			document.getElementById('portfolioViewer2').style.backgroundImage = img;
			$('portfolioViewer').fade({ duration: 0.4, from: 1, to: 0 })
			$('portfolioViewer2').appear({ duration: 0.4, from: 0, to: 1 })
			v1active = false;
			v2active = true;
		}
		lastPhoto = element;
	}
	
	
	
	
	if(element!=lastElement){
		
		Effect.Fade(lastElement, { duration: 0.4, from: 1, to: 0 });
		
		Effect.Appear(element, { duration: 0.4, from: 0, to: 1 });
		lastElement = element;
	}
	

}


function showslide(element){
	
	
	if(element!=lastPhoto){
		
		var img = 'url(portfolio_images/big/'+element+'.jpg)';

		if(v1active==false && v2active==false){
			document.getElementById('portfolioViewer').style.backgroundImage = img;


		}else if(v1active==false){
			document.getElementById('portfolioViewer').style.backgroundImage = img;

		}else if(v2active==false){
			document.getElementById('portfolioViewer2').style.backgroundImage = img;

		}
		lastPhoto = element;
	}
	
	
	if(element!=lastElement){
		
		Effect.Fade(lastElement, { duration: 0.4, from: 1, to: 0 });
		
		Effect.Appear(element, { duration: 0.4, from: 0, to: 1 });
		lastElement = element;
	}
	
	
}


function fadeWindow(){
	$('portfolioViewer').fade({ duration: 0.4, from: 1, to: 0 })
	$('portfolioViewer2').fade({ duration: 0.4, from: 1, to: 0 })
	v1active = false;
	v2active = false;
	lastPhoto = false;
	try{document.getElementById('anim').style.filter = 'alpha(opacity=100)';}catch(err){}
	//try{document.getElementById('anim').style.moz-opacity = '1';}catch(err){}
	try{document.getElementById('anim').style.opacity = '1';}catch(err){}
}

function img(element){
	
	if(element!=lastImg){
		
		Effect.Fade(lastImg, { duration: 0.4, from: 1, to: 0 });
		
		Effect.Appear(element, { duration: 0.4, from: 0, to: 1 });
		lastImg = element;
	}
}

function no(){}


function emailaddress(){
	a = 'alan'; 
	b = 'grand-fromage.co.uk'; 
	c = '@';
	document.write('<a href="mailto:'+a+c+b+'">'+a+c+b+'</a>')	;
}