coldfusion ajax submit form to cfc

This is what I use to submit forms via ajax:

<script type="text/javascript">
function updateErrorHandler(id,message) {
   
        alert("Error while updating\n Error code: "+id+"\n Message: "+message);   
    }   
    function doInsert(nForm) {   
      ColdFusion.Ajax.submitForm(nForm, '/doInsert.cfm?method=insertData', resultInsertHandler, insertErrorHandler, 'POST');         
    }   
    function resultInsertHandler(returnMsg) {   
        var resultDiv = document.getElementById("result");
        resultDiv.visibility = 'visible';
        resultDiv.innerHTML = '<div>Success!</div>';
        resultDiv.visibility = 'visible';
        setTimeout("HideOpenMenus()",5000);
}
   
    function insertErrorHandler(id, message) {   
       alert("Error while updating\n Error code: "+id+"\n Message: "+message);
        var resultDiv = document.getElementById("result");       
        resultDiv.innerHTML = "<p>Failed!</p>";   
    }

</script>

let me know if you have any questions reagarding this