Magento - Last event name that is executed after a page is loaded

In my custom module i have set a flag in session variable, and in controller_action_layout_render_before event, checking if the flag is set in then append a custom content.

I want to unset the flag in session variable after the pa开发者_StackOverflowge is loaded.

How can it be done.

Is there any event which is executed at the end when the page is getting loaded?

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The

controller_front_send_response_after

event should work for you. Temporarily adding some logging to app/Mage.php

public static function dispatchEvent($name, array $data = array())
{   
    //Mage::Log($name);                 
    file_put_contents('/tmp/event.log',"$name\n",FILE_APPEND);    

    Varien_Profiler::start('DISPATCH EVENT:'.$name);
    $result = self::app()->dispatchEvent($name, $data);
    #$result = self::registry('events')->dispatch($name, $data);
    Varien_Profiler::stop('DISPATCH EVENT:'.$name);
    return $result;
}

can get you a list of events that have fired for a particular request, which is usually enough to track down the event you're looking for yourself.

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I've you're looking to store a variable only for the life of a single request, you might consider using Magento's registry. Basically, you insert a value with Mage::register('some_variable_name',$variable); and retrieve it in some other context in the same request with Mage::registry('some_variable_name');

Refer to @Alan Storm's answer here for more information.