function AjaxRequest() {
	var request = false;
	try {
		request = new XMLHttpRequest();
	} catch (e) {

		try {
			request = new ActiveXObject('Msxml2.XMLHTTP')
		} catch (e) {
			request = new ActiveXObject('Microsoft.XMLHTTP');
		}
	}
	return request;
}

function init() {
	var url = 'member.do';
	var pars = 'method=isLogin&id=' + new Date().getTime();
	var request = new AjaxRequest();
	if (request) {
		request.open('post', url, true);
		request.onreadystatechange = function() {
			if (request.readyState == 4 && request.status == 200) {
				var f = document.forms['message'];
				var json = eval('(' + request.responseText + ')');
				if (json.success) {
					f.realName.value = json.member.realName;
					f.hasLogin.value = 1;

				} else {
					f.hasLogin.value = 0;
				}

			}
		}
		request.setRequestHeader('Content-type',
				'application/x-www-form-urlencoded');

		request.send(pars);
	}

}
function take(f) {

	if (f.hasLogin.value < 1) {
		alert('你没有登录或注册！暂不能发言！');
		return false;
	}
	if (trim(f.messageTitle.value).length == 0) {
		alert('请输入标题！');
		return false;
	}
	try {
		if (fckEditor != null && oEditer != null) {
			//alert(oEditer.GetXHTML(true));
			f.messageContent.value = oEditer.GetXHTML(true);
		}
	} catch (e) {

		return false;
	}

	if (trim(f.messageContent.value).length == 0) {

		alert('请输入内容！');
		return false;
	}
	return true;
}
function trim(s) {
	if (s == null || s == undefined) {
		return '';
	}
	return s.replace(/(^\s*)|(\s*$)/g, '');
}