H5的localStorage应该

function lgo() {
	var name = document.getElementById("name").value;
	var pwd = document.getElementById("pwd").value;

	if(name == '') {
		alert('请输入用户名');
		return false;
	}

	if(pwd == '') {
		alert('请输入密码');
		return false;
	}

	if(!window.localStorage) {
		alert("浏览器支持localstorage");
		return false;
	} else {
		//存储
		var storage = window.localStorage;
		storage.name = name;
		storage.pwd = pwd;

		if(storage.name && storage.pwd) {
			alert('登录成功~');
		}

	}
}
var storage = window.localStorage;
if(storage.name && storage.pwd) {
	//读取
	document.getElementById("name").value = storage.name;
	document.getElementById("pwd").value = storage.pwd;
}