XHTML Error?

[DeCal]

Hey guys,

Just finished working on a site and checking the XHTML link on the bottom of www.silocare.co.uk and its giving an error that I really dont understand. Any ideas guys?

http://validator.w3.org/check?uri=http%3A%2F%2Fwww.silocare.co.uk%2Findex.html;accept=text%2Fhtml%2Capplication%2Fxhtml%2Bxm l%2Capplication%2Fxml%3Bq%3D0.9%2C*%2F*%3Bq%3D0.8;accept-language=en-gb%2Cen%3Bq%3D0.5;accept-charset=ISO-8859-1%2Cutf-8%3Bq%3D0.7%2C*%3Bq%3D0.7

Cheers

Dean

[ryanbutler]

You can't have multiple id's of the same name of a given page. Switch them to classes:

<ul classes="subnavigation">