// pas de défilement :
    var pas=4
    // hauteur de la partie visible
    var h_fen="515px"
    
    function scrollmrq(){
    if ( parseInt(mrq.style.top) > -h_mrq )
    mrq.style.top = parseInt(mrq.style.top)-pas+"px"
    else
    mrq.style.top=parseInt(h_fen)+"px"
    }
    
    function init_mrq(){
    mrq=document.getElementById("actu_contenu");
    fen=document.getElementById("sbox-content");
    fen.onmouseover=function(){stoc=pas;pas=0};
    fen.onmouseout=function(){pas=stoc};fen.style.height=h_fen;
    h_mrq=mrq.offsetHeight;
    with(mrq.style){position="absolute";top=h_fen;}
    setInterval("scrollmrq()",100);
    }
    window.onload=init_mrq