function toggleSal() {
   var wrap = document.getElementById("wrap");
   
   //alert('1 '+ url+'\n2 '+smurl+'\n3'+lgurl+'\n replace'+url.charAt(url.length -5));
  
  
   if (wrap.style.display == "none"){
        wrap.style.display = "block";  
        document.getElementById("salToggle").innerHTML = '<b><a href="javascript:toggleSal();" >See Sal</a></b>';
   } 
   else {
   
        wrap.style.display = "none";
        document.getElementById("salToggle").innerHTML = '<h1><a href="javascript:toggleSal();" >Back to the Musee</a></h1>';
   }
}