function setCalendarCell(sTbodyId){
	var oTbody = window.document.getElementById(sTbodyId);
	if(oTbody && oTbody.childNodes.length > 0){
		var aTr = oTbody.getElementsByTagName('tr');
		var nStartDayCellCol = 2;
		var nEndDayCellCol   = aTr.length;
		for(var nTrIndex = nStartDayCellCol; nTrIndex < nEndDayCellCol; nTrIndex++){
			var oTr = aTr[nTrIndex];
			var aTd = oTr.getElementsByTagName('td');
			var oSunTd = aTd[0];
			if(!(oSunTd.style.backgroundColor)){
				oSunTd.style.color = '#ff3333';
			}
			var oSatTd = aTd[6];
			if(!(oSatTd.style.backgroundColor)){
				oSatTd.style.color = '#3333ff';
			}
		}
	}
}