/**
* Auteur Jacques Marie Broust
*/

var d ;
var b ;
var i, opacity, sens;
var rep_js ;
function changeOpac(opacity,i,sens) {
    var object = b.style;

    fond=rep_js+"/images/hdr"+i+".png";
    object.backgroundImage="url("+fond+")";

    object.opacity = (opacity / 100);
    object.MozOpacity = (opacity / 100);
    object.KhtmlOpacity = (opacity / 100);
    object.filter = "alpha(opacity=" + opacity +")";


   if(sens>0){
      if(opacity<120)
            {
            opacity =opacity+sens;
            jd=setTimeout("changeOpac("+opacity+","+i+","+sens+")",60);
            }
            else
            {
            sens=-1;
            opacity =opacity+sens;
            jd=setTimeout("changeOpac("+opacity+","+i+","+sens+")",400);
            }
     }
    else
     { if(opacity>0)
            {
                opacity =opacity+sens;
                jd=setTimeout("changeOpac("+opacity+","+i+","+sens+")",40);
            }
            else
            {
                opacity=0;
                sens=+1;
                i++;
                if (i>6){i=1};
                changeOpac(opacity,i,sens);
            }
       }
}

function go(rep){
rep_js=rep;
d=document;
b=d.getElementById("entete");
b.style.backgroundRepeat="no-repeat";
changeOpac(0,1,1);
}

function showdiv(id,v)
  {
  vis="hidden";
  if(v == '1'){vis="visible";};

  if (document.getElementById)
    {
    document.getElementById(id).style.visibility = vis;
    }
  else if (document.all)
    {
    document.all(id).style.visibility = vis;
    }
  }

 function Tquartier(lieu,v)
  {
  vis="hidden";
  if(v == '1'){vis="visible";};

  if (document.getElementById)
    {
    document.getElementById(lieu).style.visibility = vis;
    }
  else if (document.all)
    {
    document.all(lieu).style.visibility = vis;
    }
  }