Quicktag Track Link

// Add Quicktags
function track_link() {

	if ( wp_script_is( 'quicktags' ) ) {
	?>
	<script type="text/javascript">
	QTags.addButton( 'track-link-btn', 'tracklink', '<a href="http://" campaign="YOUR_CAMPAIGN" class="clickTracking" alt="" title="">', '</a>', 't', 'GA Link Tracking', 1 );
	</script>
	<?php
	}

}

// Hook into the 'admin_print_footer_scripts' action
add_action( 'admin_print_footer_scripts', 'track_link' );