Object expected error - ajax suggest script

Question

webdev2111 0 Newbie Poster

15 Years Ago

I was testing out the Ajax auto suggest script and i kept giving the object expected error and it is the eaxct code from w3cschool.com.

Not sure what could be wrong?

Here is the code

FORM part

<script language="text/javscript" src="clienthint.js"> </script>
 </HEAD>
 <BODY>
 <form>
First Name: <input type="text" id="txt1" onkeyup="showHint(this.value)" />
</form>

<p>Suggestions: <span id="txtHint"></span></p>

clienthint.js

var xmlhttp;
function showHint(str)
{
if (str.length==0)
  {
  document.getElementById("txtHint").innerHTML="";
  return;
  }
xmlhttp=GetXmlHttpObject();
if (xmlhttp==null)
  {
  alert ("Your browser does not support XMLHTTP!");
  return;
  }
var url="http://127.0.0.1/proj1/gethint.php";
url=url+"?q="+str;
url=url+"&sid="+Math.random();
xmlhttp.onreadystatechange=stateChanged;
xmlhttp.open("GET",url,true);
xmlhttp.send(null);
}

function stateChanged()
{
if (xmlhttp.readyState==4)
  {
  document.getElementById("txtHint").innerHTML=xmlhttp.responseText;
  }
}

function GetXmlHttpObject()
{
if (window.XMLHttpRequest)
  {
  // code for IE7+, Firefox, Chrome, Opera, Safari
  return new XMLHttpRequest();
  }
if (window.ActiveXObject)
  {
  // code for IE6, IE5
  return new ActiveXObject("Microsoft.XMLHTTP");
  }
return null;
}

gethint.php

<?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>0
if (strlen($q) > 0)
  {
  $hint="";
  for($i=0; $i<count($a); $i++)
    {
    if (strtolower($q)==strtolower(substr($a[$i],0,strlen($q))))
      {
      if ($hint=="")
        {
        $hint=$a[$i];
        }
      else
        {
        $hint=$hint." , ".$a[$i];
        }
      }
    }
  }

// Set output to "no suggestion" if no hint were found
// or to the correct values
if ($hint == "")
  {
  $response="no suggestion";
  }
else
  {
  $response=$hint;
  }
//output the response
echo $response;
?>

javascript

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baseballfury 0 Light Poster · Answer 1 · 2010-05-10T05:40:25+00:00

try something like this is your .js file. You'll need to give your form the name 'myForm' or whatever you like

var var1 = document.myForm.txt1.value;
var url = "http://127.0.0.1/proj1/gethint.php";
url+="?q="+var1;
url+="&sid="+Math.random();
xmlHttp.open("GET", url, true);
xmlHttp.send(null);