function  ajaxDNS(){
  $("#returned").replaceWith("<div id ='returned'><br/><p>Loading...</p></div>");
  $.post("/dns/whois.cgi", { domain: document.dns.domain.value, tld: document.dns.tld.value },
  function(data){
    $("#returned").replaceWith('<div id ="returned">' +  data + '</div>');
  },"html");
  return false;
};

$(document).ready(function() {
  $.get("/system_check.php", {},
  function(data){
    var newContent = '<div id ="system_info">' +  data + '</div>';
    $("#system_info").replaceWith(newContent);
    console.log(data);
  },"html");
});