fnUpdate vs fnReloadAjax

rpmatthew

Let's start of with the fact that I'm new - so simple is good :)

I have a datatable that updates fine using the fnReloadAjax on interval -
I would like to have the table rows update - but not redraw/clear... I think that would be fnUpdate...
But, how would you key on a row and match the json data to the row? I assume a specific row key would need to be obtained...in my case that is unit.

Any help would be appreciated greatly.

Code as it exists follows:

[code]
var oTable;

$(document).ready(function() {

$.fn.dataTableExt.oApi.fnReloadAjax = function(oSettings, sNewSource){
oSettings.sAjaxSource = sNewSource;
this.fnClearTable(this);
this.oApi._fnProcessingDisplay(oSettings, true );
var that = this;

$.getJSON(oSettings.sAjaxSource, null, function(json){
for (var i=0; i