n0nsensical has it. how 'bout you code to standards instead? That way EVERYONE can see your site.
and here IS the spec:
http://www.w3.org/MarkUp/
and here's a validator:
http://validator.w3.org/
and here's a poll on who's using what browser rthat suggests you're cutting off half your potential audience:
http://www.tfproject.org/tfp/showthr...hlight=browser
please note that AS MANY people are using mozilla as are using IE, and ther's another nearly third of the group using konquerer and opera.
Seriously, that's just not a good idea, and will hurt your site more than help it.