function isEMail(c)
{
var reg = /^[a-z0-9._-]+@[a-z0-9.-]{2,}[.][a-z]{2,3}$/
var r=reg.exec(c)!=null;
return (r)
}

function popup(url,nom,w,h)
{
fen=open(url,nom,'width='+w+',height='+h+',toolbar=no,location=no,status=no,menubar=no,scrollbar=auto,resizable=no');
fen.focus();
}

function addFav() 
{ 
if (document.all)	window.external.AddFavorite('http://www.tis-selestat.com', document.title); 
else 				alert('Vous pouvez faire CTRL + D pour ajouter cette page dans vos signets, ou favoris.');
}

var currentMenu=0;

function showMenu(n)
{
if (currentMenu>0)	hideMenu(currentMenu);
document.getElementById('MenuBarre').className='MenuBarreRO';
document.getElementById('ImageMenu'+n).src=document.getElementById('ImageMenu'+n).src.replace(n+'.gif',n+'-RO.gif');
document.getElementById('Menu'+n).style.display="block";
currentMenu=n;
}

function hideMenu(n)
{
document.getElementById('MenuBarre').className='MenuBarre';
document.getElementById('Menu'+n).style.display="none";
document.getElementById('ImageMenu'+n).src=document.getElementById('ImageMenu'+n).src.replace(n+'-RO.gif',n+'.gif');
currentMenu=0;
}

function RollOverImage(obj)
{
//alert(obj.src);
obj.src=obj.src.replace('.gif','-RO.gif');
}

function RollOutImage(obj)
{
obj.src=obj.src.replace('-RO.gif','.gif');
}