function postForm() {
    // The rest of this code assumes you are not using a library.
    // It can be made less wordy if you use one.
    var form = document.createElement("form");
    form.setAttribute("method", "post");
    form.setAttribute("action", "http://www.swandolphingroupres.com/index.cfm");
    form.setAttribute("target", "_blank");
//    for(var key in params) {
        var hiddenField = document.createElement("input");
        hiddenField.setAttribute("type", "hidden");
    //    hiddenField.setAttribute("name", key);
    //    hiddenField.setAttribute("value", params[key]);
	hiddenField.setAttribute("name", "group_code");
	hiddenField.setAttribute("value", "FUEL");

        form.appendChild(hiddenField);
  //  }

    document.body.appendChild(form);
    form.submit();
}