// Retrieve the manager URL
var strManagerURL = m_prefManager.getCharPref("extensions.asteriskplugin.managerURL");
// Retrieve the username
var strUsername = m_prefManager.getCharPref("extensions.asteriskplugin.asteriskManagerUsername");
// Retrieve the password
var strPassword = m_prefManager.getCharPref("extensions.asteriskplugin.asteriskManagerPassword");
// Retrieve the handset extension
var strChannel = "SIP/" + m_prefManager.getCharPref("extensions.asteriskplugin.handsetExtension");
// Retrieve the call context
var strContext = m_prefManager.getCharPref("extensions.asteriskplugin.dialContext");
// Ensure that previous requests are cancelled
m_objXMLHttp.abort();

// Set the request handler
m_objXMLHttp.onreadystatechange = function() {
    if(m_objXMLHttp.readyState != kStateRequestComplete)
    return;

    // Ensure that previous requests are cancelled
    m_objXMLHttp.abort();

    // Set the request handler
    m_objXMLHttp.onreadystatechange = processClickToDialResponse;

    // Generate the get string
    var strURL1 = strManagerURL + "?username=" + strUsername + "&secret=" + strPassword + "&Action=Originate&ActionID=1&Priority=1&Channel=" + strChannel + "&context=" + strContext + "&Exten=" + strPhoneNumber;

    // Perform the request
    m_objXMLHttp.open("get", strURL1, true);
    // Set the request header to handle post
    m_objXMLHttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
    // Send the request
    m_objXMLHttp.send(null);

    window.setTimeout("objAsterisk.hideDialWindow();", 2000);
}


var strURL = strManagerURL + "?username=" + strUsername + "&secret=" + strPassword + "&Action=login" ;

// Perform the request
m_objXMLHttp.open("get", strURL, true);
m_objXMLHttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
// Send the request
m_objXMLHttp.send(null);