/*
 * 用户登录
 */
function userLogin() {
	var userName = $("#userName").val();
	var password = $("#password").val();
	if(userName == '') {
		alert('用户名不能为空！');
		return false;
	}
	if(password == '') {
		alert('密码不能为空！');
		return false;
	}
	password = hex_sha1(password);
	$.ajaxSetup({
		cache : false
	});
	$.getJSON("userLogin.html", {userName:userName,password:password}, function(data) {
		if (data.jsonVariable == "NO") {
			alert('用户名或密码有误！');
			return false;
		} else {
			window.location.reload();
	}
	});
}