// JavaScript Document
function checkDate(frm) {
	if (!frm) var frm = document.SearchForm;
	yearmonth = frm.yearmonth;
	day = frm.day;
	dyearmonth = frm.dyearmonth;
	dday = frm.dday;
	var start = yearmonth.value+'-'+day.value;
	var end = dyearmonth.value+'-'+dday.value;
	if (start>=end) {
		var DayIndex = day.selectedIndex;
		var YearIndex = yearmonth.selectedIndex;
		if ((DayIndex+1)>30){
			if (YearIndex==dyearmonth.options.length-1){
				var newDayIndex = DayIndex;
				var newYearIndex = YearIndex;
			}else{
				var newDayIndex = 0;
				var newYearIndex = YearIndex+1;
			}
		}else{
			var newDayIndex = DayIndex+1;
			var newYearIndex = YearIndex;
		}
		dday.selectedIndex = newDayIndex;
		dyearmonth.selectedIndex = newYearIndex;
	}
}