I know it is not really new but it is always good to have an example just for the case you don't have all code in your head! :D
Column-Link:
Link Text: <img src="/i/my_icons/small_icon.png" alt="Short preview">
Link Attribute: title="Short preview"
Target: URL
URL: javascript:fnc_preview('111',#ID#);

Tip: GIF's with empty background can be displayed by IE6. PNG files can be displayed by IE6.
Column-Link:
Link Text: <img src="/i/my_icons/small_icon.png" alt="Short preview">
Link Attribute: title="Short preview"
Target: URL
URL: javascript:fnc_preview('111',#ID#);

Tip: GIF's with empty background can be displayed by IE6. PNG files can be displayed by IE6.