php - xmlDocumentElement is not defined -


here code: html:

<!doctype html> <html>     <head>         <script type="text/javascript" src="foodstore.js"></script>     </head>     <body onload="process()">         <h3>welcome our online food store</h3>         please type want order:         <input type="text" id="userinput" ></input>         <div id="underinput"></div>     </body> </html>

php

 <?php header('content-type: text/xml'); echo"<?xml version='1.0' encoding='utf-8' standalone='yes'?>"; echo '<response>';             $food = $_get['food'];             $foodarray = array('tuna','bacon','beef','loaf','mutton');             if(in_array($food,$foodarray))                 echo 'we have'.' '.$food;             elseif($food=='')                 echo 'type dude!';             else                 echo 'sorry dont sell'.' '.$food; echo '</response>'; ?>

js

var xmlhttp = createxmlhttprequestobject();  function createxmlhttprequestobject()     {         var xmlhttp;          if(window.activexobject)             {                 try                     {                         xmlhttp = new activexobject("microsoft.xmlhttp");                     }                 catch(e)                     {                         xmlhttp = false;                     }             }         else if(window.xmlhttprequest)              {                 try                     {                         xmlhttp = new xmlhttprequest();                     }                 catch(e)                     {                         xmlhttp = false;                     }             }          if(!xmlhttp)             {                 alert('cannot connect database!');             }         else             {                 return xmlhttp;             }     }  function process()     {         if(xmlhttp.readystate == 0 || xmlhttp.readystate == 4)             {                 food = encodeuricomponent(document.getelementbyid("userinput").value);                 xmlhttp.open("get", "ajax.php?food=" + food, true);                 xmlhttp.onreadystatechange = handleserverresponse;                 xmlhttp.send(null);             }         else             {                 settimeout('process()',1000);             }     }   function handleserverresponse()     {         if(xmlhttp.readystate == 4)             {                 if(xmlhttp.status==200)                     {                         xmlresponse = xmlhttp.responsexml;                         xmldocumnetelement = xmlresponse.documentelement;                         message = xmldocumentelement.firstchild.data;                         document.getelementbyid("underinput").innerhtml = "<span style='color:blue'" + message + "</span>";                         settimeout('process()',1000);                     }             }         else             {                 alert('something went wrong');             }     }

everything seems fine me still keep getting error 'xmldocumentelement not defined'. seems error due parsing issues within javascript , php.. please me fix error. thanks

try use

window.settimeout('process', 1000);

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