//Размеры картинки
var pw=640;
var ph=480;
//Размеры виртуального окна для малого вида
var ww=296;
var wh=206;

var layers="1,2,3,4,5";
var domain=document.domain.split(".");
var cc_map_url="/c_map/get_map_merc_image.php?city_code="+city_code+"&w="+pw+"&h="+ph+"&lon="+layers;

var f_start=true;
var cc_loaded=false;
var MapTopS=0;
var MapLeftS=0;
var disable_mz=false;
function cc_image_loaded()
{
 cc_map_img=document.getElementById("cc_map_src");
 if (!cc_map_img) return;
 // Инициализация события mousewheel
 if (cc_map_img.addEventListener) // mozilla, safari, chrome
     cc_map_img.addEventListener('DOMMouseScroll', mouse_wheel, false);
 // IE, Opera.
 cc_map_img.onmousewheel = mouse_wheel;
 OpenFullMap("small"); //Инициализация малого вида
 cc_map_img.width=pw;
 cc_map_img.height=ph;
 MapTopS=parseInt(cc_map_img.style.top);
 MapLeftS=parseInt(cc_map_img.style.left);
 cc_loaded=true;
 if (!Get_Cookie("geo_data"))
  {
   disable_mz=true;
   OnOffElements("zoom_out,zoom_in","off","default");
   cc_map_img.style.cursor="default";
  }
  else cc_map_img.style.cursor="move";
 cc_map_img.onload=cc2_image_ready;
}

var cc2_loading=false;
var _isIE = -1; //Если 1, то IE, если 0 - то не IE
function cc_isIE()
{
 if (_isIE != -1) {return _isIE;}
  else
  {
   if (cc_map_img.style.opacity=="") _isIE = 0;
    else _isIE = 1;
  }
 return _isIE;
}

function image_loading()
{
 cc2_loading=true;
 OnOffElements("cc_map_src,full_map,zoom_out,zoom_in","off","wait");
}

function cc2_image_ready()
{
 cc2_loading=false;
 cc_map_img.style.top=MapTopS+"px";
 cc_map_img.style.left=MapLeftS+"px";
 cc_map_img.width=pw;
 cc_map_img.height=ph;
 OnOffElements("cc_map_src","on","move");
 if (!disable_mz)
 {
  OnOffElements("full_map","on","pointer");
  if (zoom >= max_zoom) OnOffElements("zoom_in","off","default")
   else OnOffElements("zoom_in","on","pointer");
  if (zoom <= min_zoom) OnOffElements("zoom_out","off","default")
   else OnOffElements("zoom_out","on","pointer");
 }
 else OnOffElements("full_map,zoom_out,zoom_in","off","default");
}

var zoom=1;
var max_zoom=16;
var min_zoom=-6;
var zoom_quant=2;
function map_zoom(zoom_dir,zomm_level)
{
 if (zomm_level == undefined) zomm_level=0;
 if (disable_mz) return;
 if (cc2_loading) return;
 if (whell_moving) return;
 var zoom_to=1;
 if (zoom_dir==0)
 {
  image_loading();
  zoom_to=zoom+zomm_level;
  if (zoom_to>max_zoom)
   {
    zoom_to=max_zoom-zoom;
    zoom=max_zoom;
   }
   else if (zoom_to < min_zoom)
    {
     zoom_to=min_zoom-zoom;
     if (zoom_to==0) zoom_to=1;
     zoom=min_zoom;
    }
    else
     {
      zoom_to=zomm_level;
      zoom=zoom+zomm_level;
     }
  if (zoom_to==0 || zoom_to==1)
   {
    cc2_image_ready();
    return true;
   }
  cc_map_img.src=cc_map_url+"&zoom="+zoom_to+"&nx=1&ext="+Get_Cookie("geo_data");
 }
 else
  {
   if (zoom_dir==2 && zoom < max_zoom)
   {
    image_loading();
    if (zoom+zoom_quant>=3) zoom_quant=4;
     else zoom_quant=2;
    zoom=zoom+zoom_quant;
    if (zoom==0) zoom++;
    if (zoom==1) zoom++;
    zoom_to=zoom_quant;
    cc_map_img.src=cc_map_url+"&zoom="+zoom_to+"&nx=1&ext="+Get_Cookie("geo_data");
   }
   if (zoom_dir==1 && zoom>min_zoom)
   {
    image_loading();
    if (zoom-zoom_quant < 3) zoom_quant=2;
     else zoom_quant=4;
    zoom=zoom-zoom_quant;
    if (zoom==0) zoom--;
    if (zoom==-1) zoom--;
    zoom_to=-zoom_quant;
    cc_map_img.src=cc_map_url+"&zoom="+zoom_to+"&nx=1&ext="+Get_Cookie("geo_data");
   }
  }
 return;
}

//Определяет, какой тип айвента использовать - IE или Mozilla
function cm_GetEventType(evt) 
{
 _evt = evt ? evt : window.event; 
 if (_evt.preventDefault) _evt.preventDefault();
  else _evt.returnValue = false; // для IE
 _evt.mysource = _evt.target ? _evt.target : _evt.srcElement;
 _evt.myx = _evt.pageX ? _evt.pageX : _evt.clientX + document.documentElement.scrollLeft;
 _evt.myy = _evt.pageY ? _evt.pageY : _evt.clientY + document.documentElement.scrollTop;
 return _evt;
}

mapXshift=0;
mapYshift=0;
MouseXOffset=0;
MouseYOffset=0;
IsDraggable=false;
function BeginMapMove(evt)
{
 if (disable_mz) return;
 if (whell_moving) return;
 _evt = cm_GetEventType(evt);
 if (_evt.button && (_evt.button == 2)) return;
 MouseXOffset = _evt.myx;
 MouseYOffset = _evt.myy;
 IsDraggable = true;
}

function EndMapMove(evt)
{
 if (!IsDraggable) return;
 IsDraggable=false;
 var fXshift=(MapLeftS-parseInt(cc_map_img.style.left));
 var fYshift=(MapTopS-parseInt(cc_map_img.style.top))*-1;
 image_loading();
 cc_map_img.src=cc_map_url+"&nx=1&oX="+fXshift+"&oY="+fYshift+"&ext="+Get_Cookie("geo_data");
}

function MapMove(evt)
{
 if (!can_whell_zoom)
  {
   if (whell_timeout) clearTimeout(whell_timeout);
   whell_timeout = setTimeout("reset_whell()", 300);
  }
 if (!IsDraggable) return;
 _evt = cm_GetEventType(evt);
 cc_map_img.style.top=(MapTopS+(_evt.myy-MouseYOffset))+"px";
 cc_map_img.style.left=(MapLeftS+(_evt.myx-MouseXOffset))+"px";
}

function MapOut(evt)
{
 if (whell_timeout)
  {
   clearTimeout(whell_timeout);
   can_whell_zoom=false;
  } 
 if (!IsDraggable) return;
 IsDraggable=false;
 cc_map_img.style.top=MapTopS+"px";
 cc_map_img.style.left=MapLeftS+"px";
}

var clicks_count=0;
var wh_timeout_state = null;
function Wc_counter()
{
 wh_timeout_state=null;
 whell_moving=false;
 map_zoom(0,clicks_count*2);
 clicks_count=0;
}
var whell_moving=false;
function mouse_wheel(event)
{
  if (disable_mz) return;
  if (!can_whell_zoom) return;
  whell_moving=true;
  var delta = 0;
  event=cm_GetEventType(event);
  if (wh_timeout_state) clearTimeout(wh_timeout_state);
  wh_timeout_state = setTimeout("Wc_counter()", 1000);
  if (event.wheelDelta) 
   { 
    delta = event.wheelDelta/120; // IE, Opera, safari, chrome - кратность дельта равна 120
   }
   else if (event.detail) 
    { 
     delta = -event.detail/3; // Mozilla, кратность дельта равна 3
    }
   if (delta < 0)
    {
     clicks_count--;
     cc_map_img.style.top=parseInt(cc_map_img.style.top)+Math.round(cc_map_img.height/4)+"px";
     cc_map_img.style.left=parseInt(cc_map_img.style.left)+Math.round(cc_map_img.width/4)+"px";
     cc_map_img.width=Math.round(cc_map_img.width/2);
     cc_map_img.height=Math.round(cc_map_img.height/2);
    }
    else
     {
      clicks_count++;
      cc_map_img.style.top=parseInt(cc_map_img.style.top)-Math.round(cc_map_img.height/2)+"px";
      cc_map_img.style.left=parseInt(cc_map_img.style.left)-Math.round(cc_map_img.width/2)+"px";
      cc_map_img.width=cc_map_img.width*2;
      cc_map_img.height=cc_map_img.height*2;
     }
//alert(cc_map_img.style.top+" "+cc_map_img.style.left+" "+cc_map_img.width+" "+cc_map_img.height);
}
var can_whell_zoom=false;
var whell_timeout=null;
function reset_whell()
{
 clearTimeout(whell_timeout);
 can_whell_zoom=true;
}

map_visible=false;
function OpenFullMap(view)
{
 var open_type;
 if (view == undefined) open_type=0;
  else if (view=="full") open_type=1;
   else open_type=2;
 if ((!map_visible && open_type!=2) || (open_type==1))
  {
   document.getElementById("map_table").style.width=(pw+4)+"px";
   document.getElementById("map_table").style.height=(ph+34)+"px";
   document.getElementById("cc_map").style.width=(pw+4)+"px";
   document.getElementById("cc_map").style.height=(ph+34)+"px";
   document.getElementById("cc_map_src_container").style.clip="rect(0,"+pw+","+ph+",0)";
   cc_map_img.style.top="0px";
   cc_map_img.style.left="0px";
   MapTopS=0;
   MapLeftS=0;
   map_visible=true;
  }
  else
  {
   document.getElementById("map_table").style.width=(ww+4)+"px";
   document.getElementById("map_table").style.height=(wh+34)+"px";
   document.getElementById("cc_map").style.width=(ww+4)+"px";
   document.getElementById("cc_map").style.height=(wh+34)+"px";
   document.getElementById("cc_map_src_container").style.clip="rect(0,"+ww+","+wh+",0)";
   MapTopS=-Math.round(ph/2-wh/2);
   MapLeftS=-Math.round(pw/2-ww/2);
   cc_map_img.style.top=MapTopS+"px";
   cc_map_img.style.left=MapLeftS+"px";
   map_visible=false;
  }
}

function OnOffElements(elemList,action,cursor_type)
{
 var elements=elemList.split(",");
 var cursor="default";
 if ((cursor_type != undefined) && (cursor_type != "")) cursor=cursor_type;
 for (var i=0; i < elements.length; i++)
  {
   var obj=document.getElementById(elements[i]);
   if (!obj) continue;
   if (action=="on")
    {
     if (cc_isIE()) obj.style.filter = "";
      else obj.style.opacity = 1;
     obj.style.cursor=cursor;
    }
    else
     {
      if (cc_isIE()) obj.style.filter = "alpha(opacity=30)";
       else obj.style.opacity = 0.3;
      obj.style.cursor=cursor;
     }
  }
}

function Get_Cookie( check_name ) {
	// first we will split this cookie up into name/value pairs
	// note: document.cookie only returns name=value, not the other components
	var a_all_cookies = document.cookie.split( ";" );
	var a_temp_cookie = "";
	var cookie_name = "";
	var cookie_value = "";
	var b_cookie_found = false; // set boolean t/f default f
	
	for ( i = 0; i < a_all_cookies.length; i++ )
	{
		// now we will split apart each name=value pair
		a_temp_cookie = a_all_cookies[i].split( "=" );
		
		
		// and trim left/right whitespace while we are at it
		cookie_name = a_temp_cookie[0].replace(/^\s+|\s+$/g, "");
	
		// if the extracted name matches passed check_name
		if ( cookie_name == check_name )
		{
			b_cookie_found = true;
			// we need to handle case where cookie has no value but exists (no = sign, that is):
			if ( a_temp_cookie.length > 1 )
			{
				cookie_value = unescape( a_temp_cookie[1].replace(/^\s+|\s+$/g, "") );
			}
			// note that in cases where cookie is initialized but no value, null is returned
			return cookie_value;
			break;
		}
		a_temp_cookie = null;
		cookie_name = "";
	}
	if ( !b_cookie_found )
	{
		return null;
	}
}