Remove or alter footer text

And can you tell me how i remove or change the text in the role:
“©2014 raindrops Entries RSS andComments RSS Accessible Raindrops Theme “out the footer

I tried this code, but it also makes me loose all formatting.

<?php
add_filter( 'raindrops_footer_text', 'function_name' );

function function_name( $return_value ) {
        $return_value = '';
	$html_before = '<p style="text-align:center">hello world</p>';
	$html_after	 = '<p style="text-align:center;color:red;">'. get_bloginfo(). '</p>';

	return $html_before . $return_value . $html_after;
}
?>

Or is there a certain place in the functions.php file to paste it?

Thank you