Header/Footer at Error Message

[eluser]hykoh[/eluser]
Hello,

is it possible to display the error msg with header/footer ?

for example:

Code:

<?php

if(1 != 2) {
show_error('1 is not 2');
}

?>

i want to display the message like:

Code:

$this->load->view('header');

<?=$errMsg;?>

$this->load->view('footer');

I already tried to modify the "error_general.php", but only get error that $this is not a object in this context.

Thanks for help