function movingUp(signe_browser,ly,signe_up,newposUp,stepUp,limitStep,limitUp,dtime){
if (signe_up==0) {
if (signe_browser==0) newposUp=document[ly].top;
signe_up=1;
stepUp=newposUp/2;
}
if (newposUp > limitUp ) {
newposUp=newposUp-stepUp;
if (stepUp > limitStep) stepUp=stepUp/2;
if (signe_browser==0) document[ly].top=newposUp;
if (signe_browser==1) document.all[ly].style.top=newposUp;
var timeout_id_movingUp=setTimeout("movingUp("+signe_browser+",'"+ly+"',"+signe_up+","+newposUp+","+stepUp+","+limitStep+","+limitUp+","+dtime+")", dtime);