// JavaScript Document
function afficher_cacher1()
{
        if(document.getElementById('flash1').style.visibility=="hidden")
        {
                document.getElementById('flash1').style.visibility="visible";
				document.getElementById('fond').style.visibility="hidden";
        }
        else
        {
                document.getElementById('flash1').style.visibility="hidden";
				document.getElementById('fond').style.visibility="visible";
        }
        return true;
}