// JavaScript Document

	
	function initialize(){
		next = document.getElementById('next');
		previous = document.getElementById('previous');
		image = document.getElementById('img_control');
	}
	
	
	function forward(pos){
		image.src = "images/" + images[pos];
		if(pos > 0){
			previous.innerHTML = "<a href=\"javascript: backward(" + (pos - 1) + ")\">retour</a>";
		}else{
			previous.innerHTML = "retour";
		}
		if(pos < (images.length - 1)){
			next.innerHTML = "<a href=\"javascript: forward(" + (pos + 1) + ")\">suivant</a>";
		}else{
			next.innerHTML = "suivant";
		}
		
	}
	function backward(pos){
		image.src = 'images/' + images[pos];
		if(pos > 0){
			previous.innerHTML = "<a href=\"javascript: backward(" + (pos - 1) + ")\">retour</a>";
		}else{
			previous.innerHTML = "retour";
		}
		if(pos < (images.length - 1)){
			next.innerHTML = "<a href=\"javascript: forward(" + (pos + 1) + ")\">suivant</a>";
		}else{
			next.innerHTML = "suivant";
		}
		
	}