Array.prototype.isArray=true;
Function.prototype.isFunction=true;

var GNM_MenuPrefix="A";
var GNM_MenuSeparator="_";
var GNM_MenuHideDelay=70;
var GNM_MenuVisible=[];
var GNM_MenuHidden=[];
var GNM_TimerID=null;
var GNM_ChildOffsetX=-2;
var GNM_ChildOffsetY=0;
var GNM_MenuWidth=160; //need for Opera 5

var GNM_TopOffsetX=0;

var GNM_UA=navigator.userAgent;
var GNM_BW_DOM=(document.getElementById) ? true : false;
var GNM_BW_NS4=(document.layers) ? true : false;
var GNM_BW_IE=(document.all) ? true : false;
var GNM_BW_IE4=GNM_BW_IE && !GNM_BW_DOM;
var GNM_BW_Mac=(navigator.appVersion.indexOf("Mac") != -1);
var GNM_BW_IE4M=GNM_BW_IE4 && GNM_BW_Mac;
var GNM_BW_Opera=(window.opera) ? true : false;
var GNM_BW_Opera5=(GNM_UA.indexOf('Opera 5')!=-1) ? true : false;
var GNM_LastOver=null;


Array.prototype.insert=function(item)
{
	this[this.length]=item;
}

Array.prototype.remove=function(arg) //remove items from array
{
	var returnArray=[];
	var found;
	if(arg.isArray==true)
	{
		for(var j=0; j<this.length; j++)
		{
			for(var i=0; i<arg.length; i++)
			{
				found=false;
				if(this[j]==arg[i])
				{
					found=true;
					break;
				}
			}
			
			if(!found) returnArray.insert(this[j]);
		}
	}
	else
	{
		for(var j=0; j<this.length; j++)
		{
			if(this[j]!=arg)
			{
				returnArray.insert(this[j]);
			}
		}
	}
	
	return returnArray;
}

Array.prototype.in_array=function(val)
{
	for(var i=0; i<this.length; i++)
	{
		//alert(this[i] + " == "+val);
		if(String(this[i])==String(val)) return true;
	}
	return false;
}

Array.prototype.unique=function(argArray) //returns unique element from current and arg's array
{
	//flip current array
	var tmpArray=[];
	var returnArray=[];
	for(var i=0; i<this.length; i++)
	{
		returnArray.insert(this[i]);
	}
	
	//insert arg's array
	for(var i=0; i<argArray.length; i++)
	{
		if(!returnArray.in_array(argArray[i])) returnArray.insert(argArray[i]);
	}
	return returnArray;
}

Array.prototype.make_copy=function()
{
	var newArray=[];
	for(var i=0; i<this.length; i++)
	{
		newArray.insert(this[i]);
	}
	return newArray;
}

function GNM_fnExtractIndex(strElementID)
{
	var numPrefixLength=GNM_MenuPrefix.length;
	if(strElementID.substr(0,numPrefixLength) != GNM_MenuPrefix)
	{
		return -1;
	}
	
	return strElementID.substr(numPrefixLength);
}

function GNM_fnPushInVisible(strElementID)
{
	var strMenu=GNM_fnExtractIndex(strElementID);
	if(strMenu==-1) return;
	var arMenuLevels=strMenu.split(GNM_MenuSeparator);
	var arRealIDs=[];
	var numIterations=arMenuLevels.length;
	for(var i=0; i<numIterations; i++)
	{
		arRealIDs.insert(arMenuLevels.join(GNM_MenuSeparator));
		arMenuLevels.pop();
	}
	
	GNM_MenuVisible=arRealIDs;
}

function GNM_fnPushInHidden(strElementID)
{
	var strMenu=GNM_fnExtractIndex(strElementID);
	if(strMenu==-1) return;
	var arMenuLevels=strMenu.split(GNM_MenuSeparator);
	var arRealIDs=[];
	var numIterations=arMenuLevels.length;
	for(var i=0; i<numIterations; i++)
	{
		arRealIDs.insert(arMenuLevels.join(GNM_MenuSeparator));
		arMenuLevels.pop();
	}
	GNM_MenuHidden=GNM_MenuHidden.unique(arRealIDs);
}

function GNM_fnMakeVisible()
{
	var strElementID="";
	var objRef;
	for(var i=0; i<GNM_MenuVisible.length; i++)
	{
		strElementID=GNM_MenuPrefix+GNM_MenuVisible[i];
		if(objRef=document.getElementById(strElementID))
			objRef.style.visibility="visible";
	}
}

function GNM_fnMakeHidden(boolSkip)
{
	var strElementID="";
	var objRef;
	if(!GNM_MenuHidden.length) return;
	for(var i=0; i<GNM_MenuHidden.length; i++)
	{
		strElementID=GNM_MenuPrefix+GNM_MenuHidden[i];
		if(objRef=document.getElementById(strElementID))
			objRef.style.visibility="hidden";
	}
	GNM_MenuHidden=[];
}

function GNM_fnShowMenu(strElementID,objCaller)
{
	var objTmp, newX, newY;
	if(GNM_BW_IE)
	{
		window.event.cancelBubble=true;
	}
	
	clearTimeout(GNM_TimerID);
	GNM_fnPushInVisible(strElementID);
	GNM_MenuHidden=GNM_MenuHidden.remove(GNM_MenuVisible);
	//recalc menu position
	if(objTmp=document.getElementById(strElementID))
	{
		if(objCaller!=null && objTmp.style.visibility!="visible")
		{
			var wndDims=GNM_fnGetWindowDims();
			
			if(typeof(objCaller)=="object")
			{
				var pos=GNM_fnFindElementLoc(objCaller);
				
				newX=pos[0]+GNM_ChildOffsetX+((GNM_BW_Opera5) ? GNM_MenuWidth : objCaller.offsetWidth);
				newY=pos[1]+GNM_ChildOffsetY;
					
				if((objTmp.offsetWidth+newX)>wndDims[0]) newX=pos[0]-objTmp.offsetWidth-GNM_ChildOffsetX;
				if((objTmp.offsetHeight+newY)>wndDims[1]) newY=Math.max(0,wndDims[1]-objTmp.offsetHeight);
					
				objTmp.style.top=newY+"px";
				objTmp.style.left=newX+"px";

			}
			else
			{
				objCaller=document.getElementById(objCaller);
				var pos=GNM_fnFindElementLoc(objCaller);
				newX=pos[0]+GNM_TopOffsetX;
				if(eval(objTmp.offsetWidth+newX) > parseInt(wndDims[0]))  { newX=wndDims[0]-objTmp.offsetWidth-GNM_TopOffsetX-20; newX=0; objTmp.style.right="2px"; objTmp.style.left="auto";}
				 if(newX>0) objTmp.style.left=newX+"px"; 
			}
		}
	}
	
	GNM_fnMakeHidden();
	GNM_fnMakeVisible();
}


function GNM_fnHideMenu(strElementID)
{
	GNM_fnPushInHidden(strElementID);
	GNM_MenuHidden=GNM_MenuHidden.unique(GNM_MenuVisible);
	GNM_MenuVisible=GNM_MenuVisible.remove(GNM_MenuHidden);
	GNM_TimerID=setTimeout("GNM_fnMakeHidden()",GNM_MenuHideDelay);
}

function GNM_fnFindElementLoc(objRef)
{
	var x=0, y=0;
	
	obj=objRef;
	
	while(obj.offsetParent != null)
	{
		x+=obj.offsetLeft;
		y+=obj.offsetTop;
		obj=obj.offsetParent;
	}
	x+=obj.offsetLeft;
	y+=obj.offsetTop;
	
	return [x,y];
}

function GNM_fnDebug(str)
{
	if(str=='') return;
	var obj;
	if(obj=document.getElementById('debug'))
		obj.innerHTML+=str+"<br />";
}

function GNM_fnGetWindowDims()
{
	if(document.body.clientWidth) return [document.body.clientWidth,document.body.clientHeight]; // test

	if(GNM_BW_IE)
	{
		return [document.body.clientWidth,document.body.clientHeight]
	}
	else
	{
		return [window.innerWidth,window.innerHeight];
	}
}

//short-hand functions
var SHOW=GNM_fnShowMenu;
var HIDE=GNM_fnHideMenu;

function getBrowserInfo() {
    var t,v = undefined;
   
    if (window.chrome) t = 'Chrome';
    else if (window.opera) t = 'Opera';
    else if (document.all) {
        t = 'IE';
        var nv = navigator.appVersion;
        var s = nv.indexOf('MSIE')+5;
        v = nv.substring(s,s+1);
    }
    else if (navigator.appName) t = 'Netscape';
   
    return {type:t,version:v};
}

function bookmark(a){
    var url = window.document.location;
    var title = window.document.title;
    var b = getBrowserInfo();
   
    if (b.type == 'IE' && 8 >= b.version && b.version >= 4) window.external.AddFavorite(url,title);
    else if (b.type == 'Opera') {
        a.href = url;
        a.rel = "sidebar";
        a.title = url+','+title;
        return true;
    }
    else if (b.type == "Netscape") window.sidebar.addPanel(title,url,"");
    else alert("Нажмите CTRL-D, чтобы добавить страницу в закладки.");
    return false;
} 

function bookmark2 (a) {
if (window.opera && window.print) {
 var mbm = a;
 mbm.setAttribute("rel", "sidebar");
 mbm.setAttribute("title", document.title);
 mbm.setAttribute("href", window.location.href);
 mbm.click();
 return true;
}
else if (window.sidebar) {
   window.sidebar.addPanel(document.title, window.location.href, "");
  }
  else if (window.external) {
    window.external.AddFavorite(window.location.href, document.title);
  }
 return false;
}

 function reopenCity(obj){
 if(obj) {
   if (obj.parentNode.className=='city_open') 
    obj.parentNode.className='city_close'; 
   else obj.parentNode.className='city_open';}
}