PHP之AJAX

<script src="clienthint.js"></script> 

<?php // Fill up array with names$a[]="Anna";$a[]="Brittany";$a[]="Cinderella";$a[]="Diana";$a[]="Eva";$a[]="Fiona";$a[]="Gunda";$a[]="Hege";$a[]="Inga";$a[]="Johanna";$a[]="Kitty";$a[]="Linda";$a[]="Nina";$a[]="Ophelia";$a[]="Petunia";$a[]="Amanda";$a[]="Raquel";$a[]="Cindy";$a[]="Doris";$a[]="Eve";$a[]="Evita";$a[]="Sunniva";$a[]="Tove";$a[]="Unni";$a[]="Violet";$a[]="Liza";$a[]="Elizabeth";$a[]="Ellen";$a[]="Wenche";$a[]="Vicky";//get the q parameter from URL$q=$_GET["q"];//lookup all hints from array if length of q>0if (strlen($q) > 0){$hint="";for($i=0; $i<count if else output to suggestion no hint were found the correct valuesif responseecho></count>

var xmlHttpfunction showHint(str){if (str.length==0)  {   document.getElementById("txtHint").innerHTML=""  return  }xmlHttp=GetXmlHttpObject()if (xmlHttp==null)  {  alert ("Browser does not support HTTP Request")  return  } var url="gethint.php"url=url+"?q="+strurl=url+"&sid="+Math.random()xmlHttp.onreadystatechange=stateChanged xmlHttp.open("GET",url,true)xmlHttp.send(null)} function stateChanged() { if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete") {  document.getElementById("txtHint").innerHTML=xmlHttp.responseText  } }function GetXmlHttpObject(){var xmlHttp=null;try { // Firefox, Opera 8.0+, Safari xmlHttp=new XMLHttpRequest(); }catch (e) { // Internet Explorer try  {  xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");  } catch (e)  {  xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");  } }return xmlHttp;}