var windows_sizes = {
    yandex_x: "800",yandex_y: "600",mailru_x: "800",mailru_y: "600",google_x: "800",google_y: "500",livejournal_x: "1000",livejournal_y: "600",facebook_x: "900",facebook_y: "600",twitter_x: "800",twitter_y: "700",vkontakte_x: "800",vkontakte_y: "600"}

var currentBg = "white";

function changePageBg()
{
    if (currentBg == "white")
    {
        document.getElementById("TB_overlay").style.backgroundColor = "#000";
        document.getElementById("TB_overlay").style.width = "100%";
        document.getElementById("TB_overlay").style.height = "100%";
        setElementOpacity("TB_overlay", 0.55)

        currentBg = "black"
    }
    else
    {
        document.getElementById("TB_overlay").style.backgroundColor = "#FFFFFF";
        setElementOpacity("TB_overlay", 0)
        document.getElementById("TB_overlay").style.width = "0";
        document.getElementById("TB_overlay").style.height = "0";

        currentBg = "white";
    }
}

function freelogin_target_popup(form) {
}

var freeloginFieldActive = false;
function formsClose()
{
    freeloginFieldActive = false;
    if (document.getElementById('yandex') != null)	document.getElementById('yandex').innerHTML="<span id=\"yandex\"><img class=\"freelogin_icon\" src=\"https://www.politforums.net/forum/freelogin/images/yandex.png\" onClick=\"javascript:changeForm('yandex', 'Ваш логин на Яндексе')\" align=\"absmiddle\">&nbsp;</span>";
if (document.getElementById('mailru') != null)	document.getElementById('mailru').innerHTML="<span id=\"mailru\"><img class=\"freelogin_icon\" src=\"https://www.politforums.net/forum/freelogin/images/mailru.png\" onClick=\"javascript:doSubmit('mailru')\" align=\"absmiddle\">&nbsp;</span>";
if (document.getElementById('google') != null)	document.getElementById('google').innerHTML="<span id=\"google\"><img class=\"freelogin_icon\" src=\"https://www.politforums.net/forum/freelogin/images/google.png\" onClick=\"javascript:doSubmit('google')\" align=\"absmiddle\">&nbsp;</span>";
if (document.getElementById('livejournal') != null)	document.getElementById('livejournal').innerHTML="<span id=\"livejournal\"><img class=\"freelogin_icon\" src=\"https://www.politforums.net/forum/freelogin/images/livejournal.png\" onClick=\"javascript:changeForm('livejournal', 'Ваше имя в Живом Журнале')\" align=\"absmiddle\">&nbsp;</span>";
if (document.getElementById('facebook') != null)	document.getElementById('facebook').innerHTML="<span id=\"facebook\"><img class=\"freelogin_icon\" src=\"https://www.politforums.net/forum/freelogin/images/facebook.png\" onClick=\"javascript:doSubmit('facebook')\" align=\"absmiddle\">&nbsp;</span>";
if (document.getElementById('twitter') != null)	document.getElementById('twitter').innerHTML="<span id=\"twitter\"><img class=\"freelogin_icon\" src=\"https://www.politforums.net/forum/freelogin/images/twitter.png\" onClick=\"javascript:doSubmit('twitter')\" align=\"absmiddle\">&nbsp;</span>";
if (document.getElementById('vkontakte') != null)	document.getElementById('vkontakte').innerHTML="<span id=\"vkontakte\"><img class=\"freelogin_icon\" src=\"https://www.politforums.net/forum/freelogin/images/vkontakte.png\" onClick=\"javascript:doSubmit('vkontakte')\" align=\"absmiddle\">&nbsp;</span>";
}

function MakeFieldActive()
{
    if (freeloginFieldActive == false)
    {
        document.getElementById('freelogin_identifier').setAttribute("class", "textfield_active");
        document.getElementById('freelogin_identifier').value="";
        freeloginFieldActive = true;
    }
}

function doSubmit(id)
{
    formsClose();
    document.getElementById('freelogin_service').value=id;
    freelogin_target_popup(document.getElementById("freelogin_form"));
    document.getElementById("freelogin_form").submit();
}

function changeForm(id, label)
{
    formsClose();
    document.getElementById('freelogin_service').value=id;

    container = document.getElementById(id)
    container.innerHTML = "<img src=\"https://www.politforums.net/forum/freelogin/images/"+id+".png\" align=\"absmiddle\">&nbsp;<input type=\"text\" id=\"freelogin_identifier\" name=\"freelogin_identifier\" value=\""+label+"\" class=\"textfield_inactive\" onClick=\"MakeFieldActive()\" size=30/>&nbsp;<input type=\"submit\" value=\"Войти\"/>";
}

function setElementOpacity(sElemId, nOpacity)
{
  var opacityProp = getOpacityProperty();
  var elem = document.getElementById(sElemId);

  if (!elem || !opacityProp) return; // If element with this ID do not exists, or if Browser do not compatible with opacity

  if (opacityProp=="filter")  // Internet Exploder 5.5+
  {
    nOpacity *= 100;

    // if opacity exists, change it with "filters" collection, if not - adding opacity with style.filter
    var oAlpha = elem.filters['DXImageTransform.Microsoft.alpha'] || elem.filters.alpha;
    if (oAlpha) oAlpha.opacity = nOpacity;
    else elem.style.filter += "progid:DXImageTransform.Microsoft.Alpha(opacity="+nOpacity+")"; // We use += to not to react on another filters
  }
  else // Other browsers
    elem.style[opacityProp] = nOpacity;
}

function getOpacityProperty()
{
  if (typeof document.body.style.opacity == 'string') // CSS3 compliant (Moz 1.7+, Safari 1.2+, Opera 9)
    return 'opacity';
  else if (typeof document.body.style.MozOpacity == 'string') // Mozilla 1.6 and lower, Firefox 0.8
    return 'MozOpacity';
  else if (typeof document.body.style.KhtmlOpacity == 'string') // Konqueror 3.1, Safari 1.1
    return 'KhtmlOpacity';
  else if (document.body.filters && navigator.appVersion.match(/MSIE ([\d.]+);/)[1]>=5.5) // Internet Exploder 5.5+
    return 'filter';

  return false; // no opacity
}