var h_fen;
var pas=1

 function scrollmrq(){
 if (parseInt(mrq.style.top) > -h_mrq - 270 )  
 mrq.style.top = parseInt(mrq.style.top)-pas+"px"
 else mrq.style.top=parseInt(h_fen)+"px"
 }
 function init_mrq(){
 mrq=document.getElementById("actu_defilante");
 fen=document.getElementById("actu_deroulante");
 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;
	 top='0px';
 }
 setInterval("scrollmrq()",30);
 }
 
 
window.onload = function () {
	h_fen = document.getElementById("actu_defilante").offsetHeight;
	init_mrq();
}