// JavaScript Document
//判断用户是否已经登录
var isLogin = 0;//=1时，用户已经登录；=0时，用户未登录
function checkUserLogined(){
if(document.cookie.length > 0)
{
//alert(document.cookie);
var cookieString = document.cookie;
var cookieName='cookie_userid';
start = cookieString.indexOf(cookieName+'=');
if (start != -1)
{
start += cookieName.length + 1;
var end = cookieString.indexOf(';',start);
if (end == -1){
//alert(cookieString.substring(start));
return unescape(cookieString.substring(start));
}
else{
return unescape(cookieString.substring(start,end));
}
}
}
else{
return null;
}
}
//产品库页面头（登录）
function LoginDiv(){
var userName = '';
if(isLogin==0){
userName = checkUserLogined();
}
if(userName!='' && userName!=null){
isLogin = 1;
}
if(isLogin==1){//已经登录
document.getElementById('user_login_div').innerHTML = ' 欢迎访问MyPrice价格网，'+userName+'：我的通行证 退出';
}
else{//未登录
document.getElementById('user_login_div').innerHTML = '通行证'+
' 用户名： '+
' 密码： '+
' '+
' ';
}
}
//显示“我的MyPrice”div
function selfService(){
var userName = '';
if(isLogin==0){
userName = checkUserLogined();
}
if(userName!='' && userName!=null){
isLogin = 1;
}
if(isLogin==1){//已经登录
document.getElementById('myself_tip').innerHTML = '欢迎登录Myprice通行证
·产品收藏、价格提醒
·专业IT问答平台服务
·二手产品发布
';
}
else{//未登录
document.getElementById('myself_tip').innerHTML = '注册Myprice通行证
立即拥有个性IT生活
·产品收藏、价格提醒
·专业IT问答平台服务
·二手产品发布
';
}
}
//时间延迟隐藏div
var tim = null;
function hidden_div(divId,interval_time){
if(interval_time==null || interval_time==''){
interval_time = 500;//毫秒
}
if(document.getElementById(divId).style.display=='block'){
tim = setTimeout("clear_hidden_time('"+divId+"')",interval_time);
}
return false;
}
function clear_hidden_time(divId){
hidden(divId);
window.clearTimeout(tim);
tim = null;
}
//显示MyPrice通行证
function display_myself_div(divId){
if(tim!=null){
window.clearTimeout(tim);
tim = null;
}
if(document.getElementById(divId).style.display=='none'){
selfService();
display(divId);
}
}
/*
* 显示隐藏指定的div
* contentFun 为装填div内容的函数名
*/
function display(divId){
document.getElementById(divId).style.visibility = 'visible';
document.getElementById(divId).style.display = 'block';
}
function hidden(divId){
document.getElementById(divId).style.visibility = 'hidden';
document.getElementById(divId).style.display = 'none';
}
function updateseccode(width, height) {
$('seccodeimage').innerHTML = ' + ')
';
}
//获取当前时间
function date_day(){
TD=new Date();
date=TD.getDate();
month=TD.getMonth()+1;
year=TD.getYear();
document.write(year);
document.write("年");
document.write(month);
document.write("月");
document.write(date);
document.write("日");
}
function display_string(dot_str,source){
document.getElementById(dot_str).style.display = 'block';
document.getElementById(dot_str).style.visibility = 'visible';
if(document.getElementById(source)!=null && document.getElementById(source)!='undefinde'){
document.getElementById(dot_str).innerHTML = document.getElementById(source).innerHTML;
}
return false;
}
function updateseccode(seccodeimage,width, height) {
document.getElementById(seccodeimage).innerHTML = ' + ')
';
}
//判断用户是否已经登录
//登录返回用户名否则返回null
function user_login_check_null(){
if(document.cookie.length > 0)
{
//alert(document.cookie);
var cookieString = document.cookie;
var cookieName='cookie_userid';
start = cookieString.indexOf(cookieName+'=');
if (start != -1)
{
start += cookieName.length + 1;
var end = cookieString.indexOf(';',start);
if (end == -1){
//alert(cookieString.substring(start));
return unescape(cookieString.substring(start));
}
else{
return unescape(cookieString.substring(start,end));
}
}
}
else{
return null;
}
}
arr_category_id =new Array();
function subcategory_by_category(dot_str,source,category_id,category_str_id){
if(category_str_id==null){
category_str_id = 'category_dot_div_';
}
if(arr_category_id.length!=null && arr_category_id.length>1){
for(i=0;i=0)
return false;
}
return true;
}
} 
