function GetSelectedIndex(selectInput)
{
	var i;
	for (i=0; i<selectInput.length; i++) {
		if (selectInput[i].selected) {
			return i;
		}
	}
	return null;
}

function GetSelectedText(selectInput)
{
	var i;
	i=GetSelectedIndex(selectInput);
	if (i==null)
		return null;
	return selectInput[i].text;
}

function GetSelectedValue(selectInput)
{
	var i;
	i=GetSelectedIndex(selectInput);
	if (i==null)
		return null;
	return selectInput[i].value;
}