function main()
{
    // Extract template args
    var itemKind = decodeURIComponent(url.templateArgs["item_kind"]);
    var itemId = decodeURIComponent(url.templateArgs["item_id"]);

    if (logger.isLoggingEnabled())
    {
        logger.log("json form submission for item:");
        logger.log("\tkind = " + itemKind);
        logger.log("\tid = " + itemId);
    }

    if (typeof json !== "undefined")
    {
        // At this point the field names are e.g. prop_cm_name
        // and there are some extra values - hidden fields? These are fields from YUI's datepicker(s)
        // e.g. "template_x002e_form-ui_x002e_form-test_prop_my_date-entry":"2/19/2009"
    }
    else
    {
        if (logger.isWarnLoggingEnabled())
        {
            logger.warn("json object was undefined.");
        }

        status.setCode(501, message);
        return;
    }

    var repoFormData = new Packages.org.alfresco.repo.forms.FormData();
    var jsonKeys = json.keys();
    for ( ; jsonKeys.hasNext(); )
    {
        var nextKey = jsonKeys.next();

        if (nextKey == "alf_redirect")
        {
           // store redirect url in model
           model.redirect = json.get(nextKey);

           if (logger.isLoggingEnabled())
           {
               logger.log("found redirect: " + model.redirect);
           }
        }
        else
        {
           // add field to form data
           repoFormData.addFieldData(nextKey, json.get(nextKey));
        }
    }

    var persistedObject = null;
    try
    {
        persistedObject = formService.saveForm(itemKind, itemId, repoFormData);
    }
    catch (error)
    {
        var msg = error.message;

        if (logger.isLoggingEnabled())
            logger.log(msg);

		if(msg.indexOf("(AlfrescoJS") != -1)
		{
			msg = msg.substring(0,msg.indexOf("(AlfrescoJS"));
		}

		// get my custom errors here...
		if( msg.indexOf("MyError") != -1)
		{
			var index = msg.indexOf("MyError");
			msg = msg.substring(index+8);
			status.setCode(500, msg);
		}

		if( msg.indexOf("TypeError:") != -1)
		{
			var index = msg.indexOf("TypeError:");
			msg = msg.substring(index+11);
			status.setCode(500, msg);
		}

		if( msg.indexOf("Unknown") != -1)
		{
			var index = msg.indexOf("Unknown");
			msg = msg.substring(index+8);
			status.setCode(500, msg);
		}

		if( msg.indexOf("unknown") != -1)
		{
			var index = msg.indexOf("unknown");
			msg = msg.substring(index+8);
			status.setCode(500, msg);
		}

		if( msg.indexOf("Acesso negado") != -1)
		{
			var index = msg.indexOf("Acesso negado");
			msg = msg.substring(index);
			status.setCode(500, msg);
		}

		if( msg.indexOf("Invalid") != -1)
		{
			var index = msg.indexOf("Invalid");
			msg = msg.substring(index);
			status.setCode(500, msg);
		}

		if( msg.indexOf("Failed to execute supplied script:") != -1)
		{
			var index = msg.indexOf("Failed to execute supplied script:");
			msg = msg.substring(index+35);
			status.setCode(500, msg);
		}

		if( msg.indexOf("ScriptExecutionListener doesn't implement") != -1)
		{
			var index = msg.indexOf("ScriptExecutionListener doesn't implement");
			msg = msg.substring(index);
			status.setCode(500, msg);
		}

		if( msg.indexOf("invoking TaskListener: ") != -1)
		{
			var index = msg.indexOf("invoking TaskListener: ");
			msg = msg.substring(index+23);
			status.setCode(500, msg);
		}

        // determine if the exception was a FormNotFoundException, if so return
        // 404 status code otherwise return 500
        else if (msg.indexOf("FormNotFoundException") != -1)
        {
            status.setCode(404, msg);

            if (logger.isLoggingEnabled())
                logger.log("Returning 404 status code");
        }
        else
        {
            status.setCode(500, msg);

            if (logger.isLoggingEnabled())
                logger.log("Returning 500 status code");
        }

        return;
    }

    model.persistedObject = persistedObject.toString();
    model.message = "Successfully persisted form for item [" + itemKind + "]" + itemId;
}

main();