How to have default value for radio button?

[Vladislav Simovic]

I have written something like this:

<h:selectOneRadio style="border-style: hidden" layout="pageDirection">
   <f:selectItems value="#{ProfUnosiRjesenja.vrstaKomentara}"/>
</h:selectOneRadio>

bean

private SelectItem[] vrstaKomentara = {
        new SelectItem("Ispiši samo generičku poruku"),
        new SelectItem("Ispiši samo komentar"),
        new SelectItem("Ispiši i generičku poruku i komentar")
    };

Now when i run this code no value is selected. What to do to have default value selected?

[Vladislav Simovic]

Found solution - in <h:selectOneRadio> in value attribute should be placed desired default value.

But alas I have one more problem, when i write code to show radio buttons, between them i have black lines. How can i remove them? I have attched small picture to illistrate what i am talking about.