Weird problem with AJAX

var auth;
function onAccept()
{
var d = document;
var userSetting = new Object;
userSetting[‘password’] = d.getElementById(‘password’).value;
userSetting[‘username’] = d.getElementById(‘username’).value;
request();
return true;
}

function Contents(httpRequest)
{
try
{
if(httpRequest.readyState == 4)
{
if(httpRequest.status == 200)
{
alert(“I am here”); setPreference(‘response’,httpRequest.responseText);
}
else
alert(httpRequest.status);
}

} catch(ex){}

}

function request()
{
var url = “https://www.google.com/accounts/ClientLogin“;
var params = “accountType=HOSTED_OR_GOOGLE&Email=[email protected]&Passwd=password&service=cl&source=Gulp-CalGulp-1.05″;
var httpRequest = null;

if(window.XMLHttpRequest)
{
httpRequest= new XMLHttpRequest();
if(httpRequest.overrideMimeType)
httpRequest.overrideMimeType(‘text/xml’);
}
else if(window.ActiveXObject)
{
try
{
httpRequest = new ActiveXObject(“Msxml2.XMLHTTP”);
}catch(e){ try{ httpRequest = new ActiveXObject(“Microsoft.XMLHTTP”);}
catch(e){}}
}
if(!httpRequest){alert(“giving up!”);return false;}

try{

httpRequest.open(“POST”, url ,true );
httpRequest.setRequestHeader(“Content-Type”, “application/x-www-form-urlencoded”);
httpRequest.setRequestHeader(“Cache-Control”, “no-cache”);
httpRequest.onreadystatechange =function(){ Contents(httpRequest);};
httpRequest.send(params);}catch(e){alert(“I got error in sending the message”);}

}

function getPreference(whichpref)
{
var pref = Components.classes[‘@mozilla.org/preferences-service;1’].
getService(Components.interfaces.nsIPrefService).
getBranch(‘sample.’);
pref.QueryInterface(Components.interfaces.nsIPrefBranch2);
var stringtext = pref.getCharPref(whichpref);
alert(“response is n” + stringtext);
pref.setCharPref(whichpref,”);
}
function setPreference(whichpref, text)
{
var pref = Components.classes[‘@mozilla.org/preferences-service;1’].
getService(Components.interfaces.nsIPrefService).
getBranch(‘sample.’);
pref.QueryInterface(Components.interfaces.nsIPrefBranch2);
pref.setCharPref(whichpref,text);
}

Each time I run above code it is giving the error the “contents is not defined”(contents is the call back function).I am not getting my error in above program .Please help me out

Thank You

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