isUseFrameForHist=0;if(document.all&&!window.opera)
isUseFrameForHist=1;if(isUseFrameForHist&&/MSIE (\d+\.\d+);/.test(navigator.userAgent)){var ieversion=new Number(RegExp.$1)
if(ieversion>=8)
isUseFrameForHist=0;}
function BxHistory()
{this._hash="";this._to=400;this._hf=null;this._en='';this._rw={'cat':{'regexp':'^group/(.*)\\.htm$','eval':'document.f.selectForumIndex (m[1]);','pre':'group/','ext':'.htm'},'forum':{'regexp':'^forum/(.*)-(\\d+)\\.htm$','eval':'document.f.selectForum (m[1], m[2]);','pre':'forum/','page':'-','ext':'.htm'},'topic':{'regexp':'^topic/(.*)\\.htm$','eval':'document.f.selectTopic (m[1]);','pre':'topic/','ext':'.htm'},'user':{'regexp':'^user/(.*)\\.htm$','eval':'document.f.showProfile (m[1]);','pre':'user/','ext':'.htm'},'edit_cats':{'regexp':'^action=goto&edit_cats=','eval':'if (document.orca_admin) document.orca_admin.editCategories ();'},'new_topic':{'regexp':'^action=goto&new_topic=(.*)$','eval':'document.f.newTopic (m[1]);'},'search':{'regexp':'^action=goto&search=','eval':'document.f.showSearch ();'},'search_result':{'regexp':'^action=goto&search_result=1&(.*?)&(.*?)&(.*?)&(.*?)&(.*?)$','eval':'document.f.search (m[1], m[2], m[3], m[4], m[5]);'},'my_flags':{'regexp':'^action=goto&my_flags=','eval':'document.f.showMyFlags ();'},'my_threads':{'regexp':'^action=goto&my_threads=','eval':'document.f.showMyThreads ();'},'recent_topics':{'regexp':'^recent_topics\/(\\d+)$','eval':'document.f.selectRecentTopics (m[1]);'}};}
BxHistory.prototype.go=function(h)
{for(var i in this._rw)
{var pattern=new RegExp(this._rw[i]['regexp']);var m=h.match(pattern);if(!m)continue;eval(this._rw[i]['eval']);break;}
return;}
BxHistory.prototype.init=function(name)
{this._en=name;if(isUseFrameForHist)
this._initHiddenFrame();this.handleHist();window.setInterval(this._en+".handleHist()",this._to);return true;}
BxHistory.prototype.handleHist=function()
{if(isUseFrameForHist)
{var id=this._hf.contentDocument||this._hf.contentWindow.document;var h=id.getElementById('hidfr').value;if(h!=window.location.hash)
{this._hash=h;var h=this._hash.substr(1);if(h.length)
{this.go(h);}
else if(!h.length&&window.location.hash.length)
{var h=window.location.hash.charAt(0)=='#'?window.location.hash.substr(1):window.location.hash;this.pushHist(h);this.go(h);}}}
else
{if(window.location.hash!=this._hash)
{this._hash=window.location.hash;var h=this._hash.substr(1);if(h.length)
this.go(h);else
window.location=window.location;}}
return true;}
BxHistory.prototype.makeHist=function(h)
{if(h.charAt(0)!='#')h='#'+ h;if(window.location.hash==h)return;if(isUseFrameForHist)
{var id=this._hf.contentDocument||this._hf.contentWindow.document;var hhh=id.getElementById('hidfr').value;id.getElementById('hidfr').value=h;if(h!=hhh)
this.pushHist(h);window.location.hash=h;}
else
{window.location.hash=h;this._hash=window.location.hash;}
return true;}
BxHistory.prototype.pushHist=function(h)
{if(h.charAt(0)!='#')h='#'+ h;var id=this._hf.contentDocument||this._hf.contentWindow.document;id.write('<input id="hidfr" value="'+ h+'"/>');id.close();this._hash=window.location.hash;}
BxHistory.prototype._initHiddenFrame=function()
{var b=document.body;var i=document.createElement('iframe');i.style.display='none';i.id='hidfr';b.appendChild(i);this._hf=document.getElementById('hidfr');var id=null;if(this._hf.contentDocument)
id=this._hf.contentDocument
else
if(this._hf.contentWindow&&this._hf.contentWindow.document)
id=this._hf.contentWindow.document;if(id)
{id.write('<input id="hidfr" />');id.close();}}
BxHistory.prototype.rw=function(s)
{return this._rw[s];}