var authFormWindow = {

form_window: null,
overlay : null,
form_window_id : "ilogin-form-window",
login_field_id : "auth-user-login",

ShowLoginForm : function()
{
if (!this.form_window)
{
this.form_window = document.getElementById(this.form_window_id);
if (!this.form_window)
return false;

try {document.body.appendChild(this.form_window);}
catch (e){}
}

this.form_window.style.display = "block";

 if (this.GetOpacityProperty())
 this.CreateOverlay();

 var loginField = document.getElementById(this.login_field_id);
 if (loginField)
 {
 loginField.focus();
 loginField.select();
 }
 return false;
 },

 CloseLoginForm : function()
 {
 if (this.form_window)
 this.form_window.style.display = "none";

 if (this.overlay)
 this.overlay.style.display = "none";

 return false;
 },


 CreateOverlay : function()
 {
 if (!this.overlay)
 {
 this.overlay = document.body.appendChild(document.createElement("DIV"));
 this.overlay.className = "ilogin-form-overlay";

 var _this = this;
 this.overlay.onclick = function() {_this.CloseLoginForm()};
 }

 var windowSize = this.GetWindowScrollSize();

 this.overlay.style.width = windowSize.scrollWidth + "px";
 this.overlay.style.height = windowSize.scrollHeight + "px";
 this.overlay.style.display = "block";
 },

 GetOpacityProperty : function()
 {
 if (typeof document.body.style.opacity == 'string')
 return 'opacity';
 else if (typeof document.body.style.MozOpacity == 'string')
 return 'MozOpacity';
 else if (typeof document.body.style.KhtmlOpacity == 'string')
 return 'KhtmlOpacity';
 else if (document.body.filters && navigator.appVersion.match(/MSIE ([\d.]+);/)[1]>=5.5)
 return 'filter';

 return false;
 },

 GetWindowScrollSize : function(pDoc)
 {
 var width, height;
 if (!pDoc)
 pDoc = document;

 if ( (pDoc.compatMode && pDoc.compatMode == "CSS1Compat"))
 {
 width = pDoc.documentElement.scrollWidth;
 height = pDoc.documentElement.scrollHeight;
 }
 else
 {
 if (pDoc.body.scrollHeight > pDoc.body.offsetHeight)
 height = pDoc.body.scrollHeight;
 else
 height = pDoc.body.offsetHeight;

 if (pDoc.body.scrollWidth > pDoc.body.offsetWidth ||
 (pDoc.compatMode && pDoc.compatMode == "BackCompat") ||
 (pDoc.documentElement && !pDoc.documentElement.clientWidth)
 )
 width = pDoc.body.scrollWidth;
 else
 width = pDoc.body.offsetWidth;
 }
 return {scrollWidth : width, scrollHeight : height};
 }
}

var authPreloadImages = ["close.gif", "auth-form-bg.gif"];
for (var imageIndex = 0; imageIndex < authPreloadImages.length; imageIndex++)
{
 var imageObj = new Image();
 imageObj.src = "/bitrix/templates/1c-bitrix/components/bitrix/system.auth.form/auth/images/" + authPreloadImages[imageIndex];
}
authPreloadImages = null;