[ajax] html문서의 결과값을 받아오는 ajax 예제

<script>
  var url="http://172.16.10.50/zbxe/addons/dams_addon/test.php";
  var xmlhttp = null;
  if(window.XMLHttpRequest) {
   xmlhttp = new XMLHttpRequest();
  } else {
   xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
  }
  xmlhttp.open('GET', url,false);
  xmlhttp.onreadystatechange = function() {
   if(xmlhttp.readyState==4 && xmlhttp.status == 200 && xmlhttp.statusText=='OK') {
    responseText = xmlhttp.responseText;
   }
  }
  xmlhttp.send('');
  responseText = xmlhttp.responseText;
  alert(responseText);

</script>