<!--
// Name:	GetRadioButtonValue()
// Desc:		check radio button set and return the value that checked
// Input:		RadioSet = Radio button name tag.
// Return:	Value of selected radio button.
// Ver:		1.2

function GetRadioButtonValue(RadioSet){
	for (var i=0; i < RadioSet.length; i++){
		if (RadioSet[i].checked){
			return rad_val = RadioSet[i].value;
		}
	}
	return null;
}
//-->