function popupcentree(page,largeur,hauteur,options) 
{     
	var top=(screen.height-hauteur)/2;     
	var left=(screen.width-largeur)/2;    
	window.open(page,"","top="+top+",left="+left+",width="+largeur+",height="+hauteur+","+options); 
} 

var isNS = (navigator.appName == "Netscape") ? 1 : 0;
var EnableRightClick = 0;
if(isNS) document.captureEvents(Event.MOUSEDOWN||Event.MOUSEUP);
function mischandler()
{ if(EnableRightClick==1)
{ return true; }
else {return false; }}
function mousehandler(e)
{ if(EnableRightClick==1){ return true; }
var myevent = (isNS) ? e : event;
var eventbutton = (isNS) ? myevent.which : myevent.button;
if((eventbutton==2)||(eventbutton==3)) return false;}
function keyhandler(e) { var myevent = (isNS) ? e : window.event;
if (myevent.keyCode==96) EnableRightClick = 1;
return;}document.oncontextmenu = mischandler;
document.onkeypress = keyhandler;
document.onmousedown = mousehandler;
document.onmouseup = mousehandler;

function AjoutFavo() {
	if ((navigator.appName.indexOf("Microsoft",0)>=0) && (parseInt(navigator.appVersion)>=4)) {
		window.external.AddFavorite("http://www.sam-soft.com","Samsoft - Création de sites internet" );
	} else {
		alert("Cette fonction n'est proposée que par Internet Explorer 4+")
	}
}