filter all links

hello all,

i am aftr a bit of help.

i am working on a plugin right now that adds a exit popup to wordpress.

i have this working fine except now i want to stop the popup happening when navigating through the site.

all i have to do for this is add a onclick=”isExit = false” to each link.

i want to do this on all local links.

i have a function for the content which sort that bit out, but i also need to taget all links generated by

menus
widgets
tags
categorys
admin link
etc
etc.

is there any way to target all wordpress generated links?

for example right now i can filter the tag cloud like this:

function ssep_nopop_tag($text) {
	return str_replace('<a href=', '<a onclick="isExit = false" href=',  $text);
}

add_filter('wp_tag_cloud', 'ssep_nopop_tag');

i need to do this for all wordpress generated links.