Using JavaScript class AND cssClass

Hi
I'm using some JavaScript that's called by the class function within a hyperlink control:


<asp:HyperLink ID="HyperLink_MenuSubLink_AddNewOfficial" runat="server" class='colorbox_AddNewOfficial' NavigateUrl="~/secure/club-officials/add-new-official.aspx">Add New Official</asp:HyperLink>
Thing is, I also want to apply the styles I've created for this and other links like it using:


CssClass="BackOfficeMenuLink"

But if I add that, the JavaScript stops working.
Any thoughts?
Thanks as always
Richard 




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