function getCheckedRadioButtonValue(radioObj)
{
	if(!radioObj)
		return "";
	var radioLength = radioObj.length;

	if(radioLength == undefined)
		if(radioObj.checked)
			return radioObj.value;
		else
			return "";
	for(var i = 0; i < radioLength; i++)
	{
		if(radioObj[i].checked)
		{
			return radioObj[i].value;
		}
	}
	return "";
}

function setRadioButtonValue(radioObj, newValue) 
{
	if(!radioObj)
		return;
	var radioLength = radioObj.length;
	if(radioLength == undefined) 
	{
		radioObj.checked = (radioObj.value == newValue.toString());
		return;
	}
	for(var i = 0; i < radioLength; i++) 
	{
		radioObj[i].checked = false;
		if(radioObj[i].value == newValue.toString()) 
		{
			radioObj[i].checked = true;
		}
	}
}