function mkInfoWindow(title, info, link, imag){
 var poptext = "<div class='popup'>";
 poptext+= "<h3>"+title+"</h3>";
 if(imag != "noimage"){
  poptext+= "<img src='"+imag+"' alt='"+title+"' />";
 }
 poptext+= "<p>"+info;
 if(link != ""){
  poptext+= "<br /><a href='"+link+"' target='_parent'>"+title+"</a>";
 }
 poptext += "</p><br /><br /></div>";
 return poptext;
}