function menu_deroul1() {  

	   document.getElementById("s_menu1").className = "masquageShow";
	   document.getElementById("fond_navig").className = "navig20071";

}

function menu_roul1() {  

	   document.getElementById("s_menu1").className = "masquageHide";
	   document.getElementById("fond_navig").className = "navig20072";
}


function ShowFlash() {
    document.getElementById("flash").className = "";
}
function HideFlash() {
    document.getElementById("flash").className = "masquageHide";
}