function showcalendar(event, controlid1, addtime1, startdate1, enddate1) {
	alert('hello');
	controlid = controlid1;
	addtime = addtime1;
	startdate = startdate1 ? parsedate(startdate1) : false;
	enddate = enddate1 ? parsedate(enddate1) : false;
	currday = controlid.value ? parsedate(controlid.value) : today;
	hh = currday.getHours();
	ii = currday.getMinutes();
	var p = getposition(controlid);
	$('calendar').style.display = 'block';
	$('calendar').style.left = p['x']+'px';
	$('calendar').style.top	= (p['y'] + 20)+'px';
	doane(event);
	refreshcalendar(currday.getFullYear(), currday.getMonth());
	if(lastcheckedyear != false) {
		$('calendar_year_' + lastcheckedyear).className = 'calendar_default';
		$('calendar_year_' + today.getFullYear()).className = 'calendar_today';
	}
	if(lastcheckedmonth != false) {
		$('calendar_month_' + lastcheckedmonth).className = 'calendar_default';
		$('calendar_month_' + (today.getMonth() + 1)).className = 'calendar_today';
	}
	$('calendar_year_' + currday.getFullYear()).className = 'calendar_checked';
	$('calendar_month_' + (currday.getMonth() + 1)).className = 'calendar_checked';
	$('hourminute').style.display = addtime ? '' : 'none';
	lastcheckedyear = currday.getFullYear();
	lastcheckedmonth = currday.getMonth() + 1;
	if(is_ie && is_ie < 7) {
		$('calendariframe').style.top = $('calendar').style.top;
		$('calendariframe').style.left = $('calendar').style.left;
		$('calendariframe').style.width = $('calendar').offsetWidth;
		$('calendariframe').style.height = $('calendar').offsetHeight;
		$('calendariframe').style.display = 'block';
	}
}