function my_getbyid(id)
{
   itm = null;
   if (document.getElementById)
   {
      itm = document.getElementById(id);
   }
   else if (document.all)
   {
      itm = document.all[id];
   }
   else if (document.layers)
   {
      itm = document.layers[id];
   }
   
   return itm;
}

var $ = my_getbyid;
var nowPrivacy = '1';
var nowPassWord = '';
var nowFxkjSet = 'off';
function openNewDiv(_id) 
{
    var m = "mask";
    if(document.getElementById(m)) document.body.removeChild(document.getElementById(m));
    var newMask = document.createElement("div");
    newMask.id = m;
    newMask.style.position = "absolute";
    newMask.style.zIndex = "100";
    _scrollWidth = Math.max(document.body.scrollWidth,document.documentElement.scrollWidth);
    _scrollHeight = Math.max(document.body.scrollHeight,document.documentElement.scrollHeight);
    newMask.style.width = _scrollWidth + "px";
    newMask.style.height = _scrollHeight + "px";
    newMask.style.top = "0px";
    newMask.style.left = "0px";
    newMask.style.background = "#33393C";
    newMask.style.filter = "alpha(opacity=40)";
    newMask.style.opacity = "0.30";
    document.body.appendChild(newMask);
    showDiv = document.getElementById(_id);
    showDiv.style.display = "block";
    showDiv.style.position = "absolute";
    showDiv.style.zIndex = "9999";
    showDivWidth = 570;
    showDivHeight = 250;
    showDiv.style.top = (document.documentElement.scrollTop + document.documentElement.clientHeight/2 - showDivHeight/2) + "px";
    showDiv.style.left = (document.documentElement.scrollLeft + document.documentElement.clientWidth/2 -  showDivWidth/2) + "px";
}
function closeMask(_id)
{
    var m = "mask";
    if(document.getElementById(m)) document.body.removeChild(document.getElementById(m));
    showDiv = document.getElementById(_id);
    showDiv.style.display = "none";
}
function get_photo_privacy_set_div_id(value, nowValue)
{
    var id;
    if (value == 4) {
        if (nowValue == 4) {
            id = 'photo_set_mask_4_2';
        } else {
            id = 'photo_set_mask_4_1';
        }
        id = 'photo_set_mask_4_1'; //改为密码都用这个层
    } else {
        id = 'photo_set_mask_' + value;
    }
    return id;
}
function show_photo_privacy_set_div(value)
    {
        var id = get_photo_privacy_set_div_id(value, nowPrivacy);
      
        openNewDiv(id);
    }
    
    function closeMask(_id)
{
    var m = "mask";
    if(document.getElementById(m)) document.body.removeChild(document.getElementById(m));
   
    showDiv = document.getElementById(_id);
   
    showDiv.style.display = "none";
}

function close_photo_privacy_set_div(id)
{
    closeMask(id);
    id = 'privacy_' + nowPrivacy;
  
    $(id).checked = 'checked';
}