云笺

function sendData(data)
{
    var XHR = new XMLHttpRequest();
    var urlEncodedData = "";
    var urlEncodedDataPairs = [];
    var name;

    for (name in data)
    {
        urlEncodedDataPairs.push(encodeURIComponent(name) + '=' + encodeURIComponent(data[name]));
    }

    urlEncodedData = urlEncodedDataPairs.join('&').replace(/%20/g, '+');

    XHR.addEventListener('load', function (event)
        {
            alert('发送成功');
        }
    );

    XHR.addEventListener('error', function (event)
        {
            alert('发送失败');
        }
    );

    XHR.open('POST', 'https://example.com/cors.php');

    XHR.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');

    XHR.send(urlEncodedData);
}

window.location.href=url;

window.open(url);

function openContent() {
	var name = document.getElementById("name").value;
	if (name == "") return ;
	var url = "", pat = /(.+_)\d{1,2}/;
	if (pat.test(name)) // 符合正则
		url = name.slice(0, name.lastIndexOf('_')+1); // "_" 左边及其内容
	else if (name.lastIndexOf('_') == name.length-1) // 以 "_" 结尾
		url = name;
	else
		url = name + "_";
	
	window.open("index.php?n=" + encodeURI(url));
	return false;
}

window.onbeforeunload = function(event){
	if (document.getElementById("info").value != save_text)
    	return '您可能有数据没有保存';
    else
    	return false;
}

function checkEmail()
{
	var email = document.getElementById("email").value;
	if(email == "" || email == null) {
		document.getElementById("email_helper").innerHTML = "";
		return false;
	}

	var myreg = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(.[a-zA-Z0-9_-])+/;
	if(!myreg.test(email)) {
		document.getElementById("email_helper").innerHTML = "请输入正确的邮箱";
	} else {
		document.getElementById("email_helper").innerHTML = "";
	}
}