function verifyRange(hs, ms, he, me, ts) {
	var diff = hs.length - he.length;
	var oldHe = he.selectedIndex;
	var len = he.length
	for (var i = 0; i < len; i++)
		he.options[0] = null;
	for (var i = 0; i < hs.length-hs.selectedIndex; i++)
		he.options[i]=new Option(timeTempl[i+hs.selectedIndex][0],timeTempl[i+hs.selectedIndex][1]);
	var newDiff = hs.length - he.length;
	he.selectedIndex = oldHe + he.length - len;
	if (he.selectedIndex < 0) he.selectedIndex=0;
}