function image_id(id)
{
document.getElementById("images").innerHTML="<img src=\"images_app/"+image2[id]+"\" width=254 height=204/>";
}


function image_suivante()
{

	if(i==maxi-1)
		{
		}
	else
		{
		i++;
		}
	
	document.getElementById("images").innerHTML="<img src=\"images_app/"+image[i]+"\" width=254 height=204/>";

}


function image_precedente()
{

if(i==0)
		{
		}
else
		{
		i--;
		}
		document.getElementById("images").innerHTML="<img src=\"images_app/"+image[i]+"\" width=254 height=204/>";

}