function isPush(agentID)
{
    isTalk(agentID, "push");
}

function isPull(agentID)
{
    isTalk(agentID, "pull");
}

function isTalk(agentID, action)
{
    var kwImage;
    var url = escape(document.location.protocol+ "//" + document.location.hostname + document.location.pathname);
    var s = escape("?dxadv=" + agentID + "&dxmed=InstantService&dxstr=Chat&dxcpn=" + action)
    url += s;
    var d = document;
    kwImage = document.createElement('IMG');
    kwImage.style.visibility = "hidden";
    d.firstChild.appendChild(kwImage);
    kwImage.src = 'https://www.decentrix.com/trk/rt?c=com.dcx.keyword.KeywordHandler&m=log&url=' + url + '&id=28137&disc=lead';
}