[Deff]

<fieldset>
<input type="radio" name="virtuemart_paymentmethod_id" id="payment_id_3"   value="3" checked="checked">
<input type="radio" name="jl_payment_methods" style="display:none" value="ACC" id="jl_payment_methods_All Credit Card (internationally)"/>
<input type="radio" name="virtuemart_paymentmethod_id" id="payment_id_6"   value="6" >
<input type="radio" name="jl_payment_methods" style="display:none" value="VSA" id="jl_payment_methods_VISA Card (internationally)"/>
<input type="radio" name="virtuemart_paymentmethod_id" id="payment_id_7"   value="7" >
<input type="radio" name="jl_payment_methods" style="display:none" value="ewallet" id="jl_payment_methods_Ewallet"/>
<input type="radio" name="jl_payment_methods" style="display:none" value="MAE" id="jl_payment_methods_Maestro (UK Spain Autria)"/>
</fieldset>

<script src="jquery.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function(){

  $('input[type="radio"]').click(function(e) {
 var inPArr=[3,'ACC',6,'VSA',7,'ewallet']
	var id = $(this).val();
    for(var i=0; i<inPArr.length; i+=2){
      if(id==inPArr[i]){//alert(inPArr[i+1])
        $("input[value='"+inPArr[i+1]+"']").attr('checked','checked');
      break;
      }
    }
 });

});
</script>