function openWin(url,w,h) {
 var le = (screen.availWidth - w) /2;
 var he = (screen.availHeight -h) /2;
 win = window.open(url,'site','height='+h+',width='+w+',status=no,toolbar=no,scrollbars=1,menubar=no,location=no,resizable=yes,left='+le+', top='+he,false);
 win.focus();
}

function openWin2(url,w,h) {
 var le = (screen.availWidth - w) /2;
 var he = (screen.availHeight -h) /2;
 win = window.open(url,'offre','height='+h+',width='+w+',status=no,toolbar=no,scrollbars=1,menubar=no,location=no,resizable=yes,left='+le+', top='+he,false);
 win.focus();
}

function openWin3(url,w,h) {
 var le = (screen.availWidth - w) /2;
 var he = (screen.availHeight -h) /2;
 win = window.open(url,'legende','height='+h+',width='+w+',status=no,toolbar=no,scrollbars=1,menubar=no,location=no,resizable=yes,left='+le+', top='+he,false);
 win.focus();
}

function openWin4(url) {
 var le = 20;
 var he = 20;
 var w = 423;
 var h = 278;
 win = window.open(url,'newsletter','height='+h+',width='+w+',status=no,toolbar=no,scrollbars=0,menubar=no,location=no,resizable=no,left='+le+', top='+he,false);
 win.focus();
}