//**********************************************************
// (c)2003 cytrus gmbh, osnabrueck
// joerg reisenbichler <joerg@cytrus.de>
// thomas stueckmann <thomas@cytrus.de>
//**********************************************************

function change(i)
{
  var vis = "";
  var mp = "";
  var xp = "";
  var yp = "";
  var b = "cleaner";
  var p = 1;
  var z = 40;  // cuantas franquicias hay en el mapa?
   
  if ((navigator.appName=='Netscape') && (navigator.appVersion.charAt(0)<'5'))
  {
   // Netscape 4.x and below  
   if(window.document.layers[b]){window.document.layers[b].visibility="show";}
   for(p = 1; p <= z; p++)
   {
    mp = "ebene"+p;
    xp = "ebenex"+p;
    yp = "ebeney"+p;
    if(p == i) { vis = "show"; }
    else       { vis = "hide"; }
    if(window.document.layers[mp]){window.document.layers[mp].visibility=vis;}
    if(window.document.layers[xp]){window.document.layers[xp].visibility=vis;}
    if(window.document.layers[yp]){window.document.layers[yp].visibility=vis;}
   }
   return;
  }
  if ((navigator.appName!='Netscape') && (navigator.appVersion.charAt (0)<'5'))
  {  
    // MSIE 4; Opera 5.11  simulates MSIE 4
    if(document.all[b]){document.all[b].style.visibility='visible';}
    for(p = 1; p <= z; p++)
    {
      mp = "ebene"+p;
      xp = "ebenex"+p;
      yp = "ebeney"+p;
      if(p == i)  { vis = "visible"; }
      else        { vis = "hidden";  }
      if(document.all[mp]){document.all[mp].style.visibility=vis;}
      if(document.all[xp]){document.all[xp].style.visibility=vis;}
      if(document.all[yp]){document.all[yp].style.visibility=vis;}
     }
   }
   else
   {
     // DOM -- new browsers
     if(document.getElementById(b)){document.getElementById(b).style.visibility='visible';}
     for(p = 1; p <= z; p++)
     {
      mp = "ebene"+p;
      xp = "ebenex"+p;
      yp = "ebeney"+p;
      if(p == i)  { vis = "visible"; }
      else        { vis = "hidden";  }
      if (document.getElementById(mp)){ document.getElementById(mp).style.visibility=vis;}
      if (document.getElementById(xp)){ document.getElementById(xp).style.visibility=vis;}
      if (document.getElementById(yp)){ document.getElementById(yp).style.visibility=vis;}
     }  // end for()
   }
   return;
}  // end  function menu(i)