function Check_this_form()
  {
    if (document.getElementById('name').value=="")
    {
      alert('All fields are required to be filled out.');
      return false;
    }
    else if (document.getElementById('phone').value=="")
    {
      alert('All fields are required to be filled out.');
      return false;
    }
    else if (document.getElementById('email').value=="")
    {
      alert('All fields are required to be filled out.');
      return false;
    }
    else if (document.getElementById('brief').value=="")
    {
      alert('All fields are required to be filled out.');
      return false;
    }
    else return true;
  }


  function cp(obj)
  {
    string = obj.src;
    string = string.replace("_off", "_on");
    obj.src = string;
  }
  
  function op(obj)
  {
    string = obj.src;
    string = string.replace("_on", "_off");
    obj.src = string;
  }

//######################### AJAX ########################

function createRequestObject() {
  var rObj;
  var browser=navigator.appName;
  if(browser=='Microsoft Internet Explorer'){
    rObj=new ActiveXObject('Microsoft.XMLHTTP');
  }else{
    rObj=new XMLHttpRequest();
  }
  return rObj;
}

var http=createRequestObject();

function sndReq(url) {
  http.open('get',url);
  http.onreadystatechange=handleResponse;
  http.send(null);
}

function handleResponse() {
  if(http.readyState==4){
    var response=http.responseText;
    eval(response);
  }
}