function next(min,max){
	position = document.images['main'].src;
	
	position = position.substr(-6,2);
	
	file = parseFloat(position) + 1;
//	if(file == 25) window.document.getElementById('email').style.display="block";
//	else window.document.getElementById('email').style.display="none";
	
	if(file == 24) window.document.getElementById('site').style.display="block";
	else window.document.getElementById('site').style.display="none";
	
	if(file <= max){
		file = file+"";
		taille = file.length;
		if(taille == 1) file = "0"+file+".jpg";
		else file = file+".jpg";
		document.images['main'].src = file;
	} else {
		document.images['main'].src = min+".jpg";
	}
	
}

function previous(min,max){
	position = document.images['main'].src;
	
	position = position.substr(-6,2);
	
	file = parseFloat(position) - 1;
//	if(file == 25) window.document.getElementById('email').style.display="block";
//	else window.document.getElementById('email').style.display="none";
	
	if(file == 24) window.document.getElementById('site').style.display="block";
	else window.document.getElementById('site').style.display="none";
	
	if(file >= parseFloat(min)){
		file = file+"";
		taille = file.length;
		if(taille == 1) file = "0"+file+".jpg";
		else file = file+".jpg";
		document.images['main'].src = file;
	} else {
		document.images['main'].src = max+".jpg";
//		window.document.getElementById('email').style.display="block";
	}	
}