you can do something like this.
<input type="submit" value="submit this form" onclicksubmit="javscript
oSomething()"/>
function doSomething(){
var j=document.getElementsByName("selectedButton").length;
for (i=0; i<j; i++){
if(document.getElementsByName("selectedButton")[i].checked){
window.location="http://.....html"
}
}
This is just an idea.Hope this helps.