User:Alfwyn/Sandbox/Template:extnavimg

 [ . ]  {{Usage|1= Produces an image which links to an external URL.

Parameters
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 * image= required &mdash; imagename without the leading "Image:"
 * link= required &mdash; full URL the image should link to
 * xsize= optional &mdash; width of image, defaults to size
 * ysize= optional &mdash; height of image, defaults to size
 * size= optional &mdash; size of image, required if xsize or ysize is missing
 * title= optional &mdash; text to display on image mouseover, defaults to link