登录-记住用户名

<script type="text/javascript">

$(function() {
document.onkeydown = function(e){
var ev = document.all ? window.event : e;
if(ev.keyCode==13) {
if ($("#js-mobile_ipt").val() == "" ||$("#js-mobile_pwd_ipt").val() == "") {
alert("用户名和密码都不可以为空！")
return false;
}
$("#form").submit();
}
}

var name=getCookie('username');
if(name != null){
$('#js-mail_chk')[0].checked = true;
$('#js-mobile_ipt').val(name);
}
});

// 获取cookie
function getCookie(objName){
var arrStr = document.cookie.split("; ");
for(var i = 0;i < arrStr.length;i ++){
var temp = arrStr[i].split("=");
if(temp[0] == objName) return unescape(temp[1]);
}
}

// 添加cookie
function addCookie(objName,objValue,objHours){
if(objHours > 0){
document.cookie = objName + "=" + escape(objValue) + "; expires=" + new Date(new Date().getTime() + objHours*24*3600*1000).toGMTString();
}
}
// 删除cookie
function delCookie(name){
var exp = new Date();
exp.setTime(exp.getTime() - 1);
var cval=getCookie(name);
if(cval!=null) document.cookie= name + "="+cval+";expires="+exp.toGMTString();
}

function login(){
if ($("#js-mobile_ipt").val() == "" ||$("#js-mobile_pwd_ipt").val() == "") {
alert("用户名和密码都不可以为空！")
return false;
}
if($('#js-mail_chk').is(':checked')){
if(getCookie('username') != $('#js-mobile_ipt').val()){
addCookie('username',$('#js-mobile_ipt').val(),7);
}
}else{
delCookie('username');
}

$("#form").submit();

}
</script>