Dropdown list box selection

Hi,

I'm trying to create an edit page record page where there is a dropdown listbox with true/false selection.

<td width="6%"><select name="COMP_BROWSER" size="1">
<optionselected value="<%=COMP_BROWSER%>"><%=COMP_BROWSER%></option>
<option><%=(?????)%></option>

COMP_BROWSER is the return value, how would I change the COMP_BOWSER to false if it is true, and true if if is fasle?

Thanks...