function utf16to8(str) {
    var out, i, len, c;
    out = "";
    len = str.length;
    for(i = 0; i < len; i++) {
        c = str.charCodeAt(i);
        if ((c >= 0x0001) && (c <= 0x007F)) {
            out += str.charAt(i);
        } else if (c > 0x07FF) {
            out += String.fromCharCode(0xE0 | ((c >> 12) & 0x0F));
            out += String.fromCharCode(0x80 | ((c >>  6) & 0x3F));
            out += String.fromCharCode(0x80 | ((c >>  0) & 0x3F));
        } else {
            out += String.fromCharCode(0xC0 | ((c >>  6) & 0x1F));
            out += String.fromCharCode(0x80 | ((c >>  0) & 0x3F));
        }
    }
    return out;
}
function utf8to16(str) {
    var out, i, len, c;
    var char2, char3;

    out = "";
    len = str.length;
    i = 0;
    while(i < len) {
        c = str.charCodeAt(i++);
        switch(c >> 4)
        {
          case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7:
            // 0xxxxxxx
            out += str.charAt(i-1);
            break;
          case 12: case 13:
            // 110x xxxx   10xx xxxx
            char2 = str.charCodeAt(i++);
            out += String.fromCharCode(((c & 0x1F) << 6) | (char2 & 0x3F));
            break;
          case 14:
            // 1110 xxxx  10xx xxxx  10xx xxxx
            char2 = str.charCodeAt(i++);
            char3 = str.charCodeAt(i++);
            out += String.fromCharCode(((c & 0x0F) << 12) |
                                           ((char2 & 0x3F) << 6) |
                                           ((char3 & 0x3F) << 0));
            break;
        }
    }

    return out;
}
var base64EncodeChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
var base64DecodeChars = new Array(
    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63,
    52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -1, -1,
    -1,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14,
    15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1,
    -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
    41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1);
function base64encode(str) {
    var out, i, len;
    var c1, c2, c3;

    len = str.length;
    i = 0;
    out = "";
    while(i < len) {
        c1 = str.charCodeAt(i++) & 0xff;
        if(i == len)
        {
            out += base64EncodeChars.charAt(c1 >> 2);
            out += base64EncodeChars.charAt((c1 & 0x3) << 4);
            out += "==";
            break;
        }
        c2 = str.charCodeAt(i++);
        if(i == len)
        {
            out += base64EncodeChars.charAt(c1 >> 2);
            out += base64EncodeChars.charAt(((c1 & 0x3)<< 4) | ((c2 & 0xF0) >> 4));
            out += base64EncodeChars.charAt((c2 & 0xF) << 2);
            out += "=";
            break;
        }
        c3 = str.charCodeAt(i++);
        out += base64EncodeChars.charAt(c1 >> 2);
        out += base64EncodeChars.charAt(((c1 & 0x3)<< 4) | ((c2 & 0xF0) >> 4));
        out += base64EncodeChars.charAt(((c2 & 0xF) << 2) | ((c3 & 0xC0) >>6));
        out += base64EncodeChars.charAt(c3 & 0x3F);
    }
    return out;
}

function base64decode(str) {
    var c1, c2, c3, c4;
    var i, len, out;

    len = str.length;
    i = 0;
    out = "";
    while(i < len) {
        /* c1 */
        do {
            c1 = base64DecodeChars[str.charCodeAt(i++) & 0xff];
        } while(i < len && c1 == -1);
        if(c1 == -1)
            break;

        /* c2 */
        do {
            c2 = base64DecodeChars[str.charCodeAt(i++) & 0xff];
        } while(i < len && c2 == -1);
        if(c2 == -1)
            break;

        out += String.fromCharCode((c1 << 2) | ((c2 & 0x30) >> 4));

        /* c3 */
        do {
            c3 = str.charCodeAt(i++) & 0xff;
            if(c3 == 61)
                return out;
            c3 = base64DecodeChars[c3];
        } while(i < len && c3 == -1);
        if(c3 == -1)
            break;

        out += String.fromCharCode(((c2 & 0XF) << 4) | ((c3 & 0x3C) >> 2));

        /* c4 */
        do {
            c4 = str.charCodeAt(i++) & 0xff;
            if(c4 == 61)
                return out;
            c4 = base64DecodeChars[c4];
        } while(i < len && c4 == -1);
        if(c4 == -1)
            break;
        out += String.fromCharCode(((c3 & 0x03) << 6) | c4);
    }
    return out;
}
function decode64(str){
        return utf8to16(base64decode(str));
}

function getCookie(name) {
	var search;
	search = name + "="
	offset = document.cookie.indexOf(search)
	if (offset != -1) {
		offset += search.length ;
		end = document.cookie.indexOf(";", offset) ;
		if (end == -1)
		end = document.cookie.length;
		return unescape(document.cookie.substring(offset, end));
	}
	else
	return;
}
function getUserInfo()
{
	flag = 0;
	ciCookie = getCookie("ci123");
	var t;
	if ("undefined" != typeof(ciCookie))
	{
		tmp = decode64(ciCookie);
		tmp = tmp.split( ";" );
		tmp = tmp[0];
		tmp = tmp.split( "," );
		if (tmp!="")
		{
			tmp['username'] = tmp[0];
			tmp['nickname'] = tmp[1];
			tmp['user_id'] = tmp[2];
			tmp['zone_id'] = tmp[3];
			tmp['time'] = tmp[4];
			//t = tmp['user_id'].substr(0,1);
			t =Math.floor(tmp['user_id']/1000);
			tmp['avatar'] = 'http://i.ci123.com/avatar/'+t+'/'+tmp['user_id']+'.png' ;
			return tmp;
		}
	}
	else
	{
		tmp = Object();
		return tmp;
	}
}

var g_userinfo = getUserInfo();

function setCookie(name, value, expires, path, domain, secure) {
  var curCookie = name + "=" + escape(value) +
      ((expires) ? "; expires=" + expires.toGMTString() : "") +
      ((path) ? "; path=" + path : "") +
      ((domain) ? "; domain=" + domain : "") +
      ((secure) ? "; secure" : "");
  document.cookie = curCookie;
}

function deleteCookie(name, path, domain) {
  if (getCookie(name)) {
    document.cookie = name + "=" +
    ((path) ? "; path=" + path : "") +
    ((domain) ? "; domain=" + domain : "") +
    "; expires=Thu, 01-Jan-70 00:00:01 GMT";
  }
}


function fixDate(date) {
  var base = new Date(0);
  var skew = base.getTime();
  if (skew > 0)
    date.setTime(date.getTime() - skew);
}

//loginface 2010-01-21 20:19 huangchaozi
function needlogin()
{
	if(!g_userinfo['user_id']){
		myneedlogin();
		return false;
	}else{
		return true;
	}
}
function getLoginFace(){
	var strshow='<div id="needloginbg"></div>\
<div id="needlogin">  \
	<div class="nrow1"><div class="ntitle">用户登录</div><div class="nclose" title="关闭登录框" onclick="closeNeedLogin();"><a href="javascript:void(null);" target="_self">X</a></div></div>  \
	<div class="nrow2">  \
		<form name="needloginface" method="post" action="http://user.ci123.com/index.php" id="needloginface"  target="_self" onsubmit="return chkloginsub(this);"> \
		<div class="item1"><div class="n_left">用户名：</div><div class="n_right"><input class="ntxt" name="username" id="nusername" type="text" /></div></div> \
		<div class="item1"><div class="n_left">密&nbsp;&nbsp;&nbsp;&nbsp;码：</div><div class="n_right"><input class="ntxt" name="password" type="password" /></div></div> \
		<div class="item2"><input type="checkbox" name="rememberme" id="rememberme" /><label for="rememberme">记住我的登录状态</label></div> \
		<div class="item2"><input type="submit" name="loginsub" id="nloginsub" value=" 登录 " /> \
		&nbsp;&nbsp;&nbsp;<a href="http://user.ci123.com/account/Getpass/" target="_blank">忘记密码？</a>\
		<input type="hidden" name="back_url" id="need_back_url" value="" /> \
		</div> \
		<div class="item3"> \
			还没有育儿网帐号？<a href="http://user.ci123.com/account/NewAccount/" target="_blank">注册育儿网帐号</a> \
		</div> \
		</form> \
	</div> \
</div>';
	return strshow;
	}
function myneedlogin(){
	var ndiv = document.createElement("div");
	var tb = document.getElementsByTagName("body");
	tb[0].appendChild(ndiv);
	ndiv.setAttribute("id","nloginface");
	
	var lstr=getLoginFace();
	ndiv.innerHTML=lstr;
	
	var bodywidth=document.body.clientWidth;
	var bodyheight=document.documentElement.scrollHeight;
	var viewheight=window.screen.availHeight;
	var nlleft=parseInt((bodywidth-360)/2);
	var nltop=parseInt((viewheight-340)/2);
	document.getElementById("needloginbg").style.display="block";
	document.getElementById("needloginbg").style.height=bodyheight+'px';
	document.getElementById("needlogin").style.display="block";
	document.getElementById("needlogin").style.left=nlleft+'px';
	document.getElementById("needlogin").style.top=nltop+'px';
	document.getElementById("need_back_url").value=window.location;
	document.getElementById("nusername").focus();
	document.documentElement.scrollTop=0;
}
function chkloginsub(f){
	var username=f.username.value.replace(/[ ]/,"");
	var password=f.password.value;
	if(username.length<4){
		alert("用户名在4-26个字符，请重输。");
		f.username.select();
		return false;
	}else if(password.length<5){
		alert("密码不能小于6个字符，请重输。");
		f.password.select();
		return false;
	}else{
		f.loginsub.disabled="disabled";
		return true;
	}
}
function closeNeedLogin(){document.getElementById("needloginbg").style.display="none";document.getElementById("needlogin").style.display="none";}