function Montrer(objD,objI)
 {// Les parametres de style sont definis sous la forme ...px
  nlng = eval(document.body.clientWidth)-240-eval(objI.style.width.substring(0,objI.style.width.length-2));
  if(nlng < 170)
  {
   ntmp = 20+eval(objI.style.top.substring(0,objI.style.top.length-2));
   objD.style.top = ""+ntmp+"px";
   ntmp = 20+eval(objI.style.left.substring(0,objI.style.left.length-2));
   objD.style.left = ""+ntmp+"px";
   nlng = eval(document.body.clientWidth)-240;
   objD.style.width = ""+nlng+"px";
  }
  else
  {ntmp = objI.style.top.substring(0,objI.style.top.length-2);
   objD.style.top = ""+ntmp+"px";
   ntmp = 20+eval(objI.style.left.substring(0,objI.style.left.length-2))+eval(objI.style.width.substring(0,objI.style.width.length-2));
   objD.style.left = ""+ntmp+"px";
   objD.style.width = ""+nlng+"px";
  }
  objD.style.visibility="visible";
 }
function Cacher(obj)
 {obj.style.visibility="hidden";
 }