function getObject(objectId) {
	if(document.getElementById && document.getElementById(objectId)) {
		// W3C DOM
		return document.getElementById(objectId);
	} else if (document.all && document.all(objectId)) {
		// MSIE 4 DOM
		return document.all(objectId);
	} else if (document.layers && document.layers[objectId]) {
		// NN 4 DOM.. note: this won't find nested layers
		return document.layers[objectId];
	} else {
		return false;
	}
}

function makeDateStr(){
	var nDate = new Date();
	var year  = nDate.getFullYear();
	var month = nDate.getMonth() + 1;
	var date  = nDate.getDate();
	var hour  = checkTime(nDate.getHours());
	var minute= checkTime(nDate.getMinutes());
	var second= checkTime(nDate.getSeconds());
	var dateStr = year + '年' + month + '月' + date + '日 ' + hour + ':' + minute + ':' + second;
	return dateStr;
}
function checkTime(i){
	if (i<10){
		i="0" + i;
	}
	return i;
}