How to link image with anchor function

[eluser]rogierb[/eluser]
I use a customs function for images:

Code:

function anchor_image($url, $image, $attributes = '', $image_attributes = '') {
  $url ? $link_url = site_url($url) : $link_url ="[removed]void(0);";
  $attributes = _parse_attributes($attributes);
  $image_attributes = _parse_attributes($image_attributes);
  return '<a href="'.$link_url.'"><img src="'.base_url().$image.'" /></a>';
}

Edit: Code is f*cked:
Use: ja-va-script: where is says [removed]

Just remove the -.