function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

function Visible(Calque) {
	if (navigator.appName=="Netscape") {
		if (document.getElementById(Calque).style.visibility="visible") return true; else return false;
	} else {
		if (document.getElementById(Calque).style.visibility=="visible") return true; else return false;;
	}

}

function Show(Calque) {
	if (navigator.appName=="Netscape") {
		document.getElementById(Calque).style.visibility="visible";
	} else {
		document.getElementById(Calque).style.visibility="visible";
	}
}

function Hide(Calque) {
if (navigator.appName=="Netscape") 
     {document.getElementById(Calque).style.visibility="hidden";}
else {document.getElementById(Calque).style.visibility="hidden";}
}
timerIDENT=null;
timerIDEQU=null;
timerIDINT=null;
timerIDATO=null;
timerIDDOC=null;

function popupcentrer(page,nom,options)
{
//var top=(screen.height-hauteur-60)/2;
wpop=window.open(page,nom,options);
wpop.focus();
}