function sendenquiry(company,full_name,tel_num,fax_num,email,business,enquiry){
  var enquiry = escape(enquiry);
  var ajaxRequest;
  try{
    ajaxRequest = new XMLHttpRequest();
  }catch(e){
    try{
      ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
    }catch(e){
      try{
        ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
      }catch(e){
        alert("Your browser does not support Javascript/AJAX. Please update it");
        return false;
      }
    }
  }
  ajaxRequest.onreadystatechange = function(){
    if(ajaxRequest.readyState == 4){
      document.getElementById('contact_form').innerHTML = ajaxRequest.responseText;
    }else{
      document.getElementById('contact_form').innerHTML = "<p class=\"center\"><img src=\"/imgs/indicator.gif\" alt=\"Loading...\" /></p>\n";
    }
  }
  var queryString = "?company="+company+"&full_name="+full_name+"&tel_num="+tel_num+"&fax_num="+fax_num+"&email="+email+"&business="+business+"&enquiry="+enquiry;
  ajaxRequest.open("GET", "ajax_sendenquiry.php" + queryString, true);
  ajaxRequest.send(null);
}