### xajax.inc.php
###############################################

function registerCallableObject($oObject,$sIncludeFile=false)
{
		if ( is_string($oObject)) {
			$this->aCallableObjects[$oObject] = array();
		}
		else {
			trigger_error("The registerCallableObject method requires a string to be provided", E_USER_WARNING);
		}
		if ($sIncludeFile) {		
			if (is_readable($sIncludeFile)) {
				$this->aCallableObjects[$oObject]['include'] = $sIncludeFile;
			}
			else {
				trigger_error("The registerCallableObject method requires a readable file to be provided", E_USER_WARNING);
			}

		}
}	

### xajaxDefaultRequestProcessorPlugin.inc.php
###############################################
 		// A function was not found. Let's check callable objects
 		if( ($p = strpos($sFunctionName,'_')) !== false) {
 			$calledObj = substr($sFunctionName,0, $p));
 			
			if(isset($aCallableObjects[$calledObj])) {
			
				$calledMethod = substr($sFunctionName,$p );

				// Include any external dependencies associated with this object
				if (isset($aCallableObjects[$calledObj]['include'])) {
					ob_start();
					include_once($aCallableObjects[$calledObj]['include']);
					ob_end_clean();
				}

				if (class_exists($calledObj, false)) {
					$aCalledObject = new $calledObj;
					if (method_exists($aCalledObject, $calledMethod) || method_exists($aCalledObject, "__call")) {
						// Attemping to call the object
						$objTempResponse = call_user_func_array(array(&$aCalledObject, $calledMethod), $aArgs);
						if (!$this->_objXajax->getFlag("allowAllResponseTypes") && !is_a($objTempResponse, 'xajaxResponse')) {
							$this->_outputError("No xajaxResponse Was Returned By Method $sFunctionName of " . $calledObject);
							return;
						}
						else if ($this->_objXajax->getFlag("allowAllResponseTypes") && !is_a($objTempResponse, 'xajaxResponse'))
						{
							print $objTempResponse;	
							exit;
						}

						if ($objTempResponse != $objResponse) {
							// Load any previous response commands into the new response object
							$objTempResponse->loadCommands($objResponse, true);
						}
						// We're successful; output the response now!
						$this->_outputResponse($objTempResponse);
						return;
					}
				}
			}
		}