function RightToLeft()
{
    document.points.town1.selectedIndex = document.points.town1.length - document.points.town2.selectedIndex - 1;
    return false;
}
function LeftToRight()
{
    document.points.town2.selectedIndex = document.points.town2.length - document.points.town1.selectedIndex - 1;
    return false;
}
function stClick(selItem)
{
    var idx;
    for (idx = 0;idx < document.points.town1.length;idx++) {
	if (selItem == document.points.town1.options[idx].value) {
	    document.points.town1.selectedIndex = idx;
	    break;
	}
    }
}
function enClick(selItem)
{
    var idx;
    for (idx = 0;idx < document.points.town2.length;idx++) {
	if (selItem == document.points.town2.options[idx].value) {
	    document.points.town2.selectedIndex = idx;
	    break;
	}
    }
}