function MM_openBrWindow(theURL,winName,features) { //v2.0
  new_features = features ;
  new_features += ",scrollbars=yes" ;
  window.open(theURL,winName,new_features);
}


var _ad; var _tb; var _adTop; var _maxScroll; var _lastPos=0;
function adinit() {
if(document.getElementById('ad-left')) {
        _ad=document.getElementById('ad-left');
        _adTop=_ad.offsetTop;
        _maxScroll=document.getElementById('contenu').offsetHeight-document.getElementById('ad-extra').offsetHeight+_adTop-_ad.offsetHeight-10;
        if(_maxScroll>_adTop) adScroll();
		}
}


function pos(){ if(window.innerHeight)
return window.pageYOffset; if(document.documentElement&&document.documentElement.scrollTop)
return document.documentElement.scrollTop; if(document.body)
return document.body.scrollTop; return 0;}
function adScroll(){ if(_lastPos!=pos()){ _lastPos=pos(); if(pos()<_maxScroll&&pos()>_adTop)
_ad.style.top=pos()+'px'; else if(pos()<_maxScroll)
_ad.style.top=_adTop+'px'; else _ad.style.top=_maxScroll+'px';}
setTimeout('adScroll()', 10);}

window.onresize=function(){ if(_ad){ _adTop=document.getElementById('main').offsetTop;
_maxScroll=document.getElementById('main').offsetHeight+_adTop-_ad.offsetHeight;}
};