Jquery Cookie【记住密码】

//添加jQuery cookie 功能
jQuery.cookie = function(name, value, options) {
    if (typeof value != 'undefined') { // name and value given, set cookie
        options = options || {};
        if (value === null) {
            value = '';
            options.expires = -1;
        }
        var expires = '';
        if (options.expires && (typeof options.expires == 'number' || options.expires.toUTCString)) {
            var date;
            if (typeof options.expires == 'number') {
                date = new Date();
                date.setTime(date.getTime() + (options.expires * 24 * 60 * 60 * 1000));
            } else {
                date = options.expires;
            }
            expires = '; expires=' + date.toUTCString(); // use expires attribute, max-age is not supported by IE
        }
        var path = options.path ? '; path=' + options.path : '';
        var domain = options.domain ? '; domain=' + options.domain : '';
        var secure = options.secure ? '; secure' : '';
        document.cookie = [name, '=', encodeURIComponent(value), expires, path, domain, secure].join('');
    } else { // only name given, get cookie
        var cookieValue = null;
        if (document.cookie && document.cookie != '') {
            var cookies = document.cookie.split(';');
            for (var i = 0; i < cookies.length; i++) {
                var cookie = jQuery.trim(cookies[i]);
                // Does this cookie string begin with the name we want?
                if (cookie.substring(0, name.length + 1) == (name + '=')) {
                    cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
                    break;
                }
            }
        }
        return cookieValue;
    }
};
【记住密码】
function setCookie(obj){
  var name = document.forms[0].usrname.value;
  var pwd = document.forms[0].pwd.value;
  if(obj.checked){
     $.cookie(name, pwd);
  }else{
     $.cookie(name, null);
  }
}
【取出密码】最后应用：当输入账号时，改变事件
function getpsd(obj){
  var pwd = $.cookie(obj.value);
  if(pwd){
document.forms[0].pwd.value=pwd;
document.getElementById("savepsd").checked = true;
  }
}
//文本框 编辑状态(初始化为不可编辑的状态)
function setIsTextReadOnly(state) {
if(state == true) {
var inputElements = document.getElementById("frmlogin").getElementsByTagName("input");
for(var i01=0;i01<inputElements.length;i01++) {
if(inputElements[i01].type == "text" || inputElements[i01].type == "password" || inputElements[i01].type == "button" || inputElements[i01].type == "checkbox") {
inputElements[i01].disabled = true;
}
}
} else {
var inputElements = document.getElementById("frmlogin").getElementsByTagName("input");
for(var i01=0;i01<inputElements.length;i01++) {
if(inputElements[i01].type == "text" || inputElements[i01].type == "password" || inputElements[i01].type == "button" || inputElements[i01].type == "checkbox") {
inputElements[i01].disabled = false;
}
}
}
}