cDropMenu.instances = [];

cDropMenu.submenu_image = {   url: 'images/menu-arrow.gif ', width : 8, height : 10 };

cDropMenu.shadow_level = 30;



cDropMenu.AttachEvent = function (oObject,sEvent,fListener) {

   if ( oObject.addEventListener )

      return oObject.addEventListener(sEvent,fListener,false);

   else if ( oObject.attachEvent )

      return oObject.attachEvent('on' + sEvent,fListener);

   else

      return false;

}



cDropMenu.GetRelativeCoord = function (oObject) {

  var Top = oObject.offsetTop;

  var Left = oObject.offsetLeft;

  while (oObject.offsetParent != null) {

    oObject = oObject.offsetParent;

    Top += oObject.offsetTop;

    Left += oObject.offsetLeft;

  };

  return new Array(Top,Left);

};



cDropMenu.SetTransparencity = function (oDomObject, iLevel) {

   if ( typeof oDomObject.style.filter != 'undefined' )  {

      oDomObject.style.filter="progid:DXImageTransform.Microsoft.alpha(opacity=" + iLevel + ")";

      return true;

   }

   if ( typeof oDomObject.style.MozOpacity != 'undefined' ) {

      oDomObject.style.MozOpacity = iLevel / 100;

      return true;

   }

   return false;

}



function cDropMenu() {

   // public properties

   this.id = cDropMenu.instances.length;

      cDropMenu.instances[this.id] = this;

   this.items = new Array();

   // align position @ string

   // 'bottom': align to bottom of object

   // 'right' : align to right of object

   this.AlignPosition = 'bottom';

   // animation type @ string:

   // 'slide' : like windows98 default menu animation,

   // 'fade'  : like windows2000 default menu animation (too buggy now)

   this.AnimationType = 'slide';

   // Hide timeout @ integer

   // time in milliseconds to hide when mouseover

   this.HideTimeout = 500;



   this.isOpen = false;

   this.Parent = null;

   this.HideTimer = null;



   // private variables

   var animation_timer = null;

   var _this = this;    // small hack ?



   // constructor

   // create menu layout

   var main_div = document.createElement('div'); // main container

   with ( main_div )  {

      style.top = 0;

      style.left = 0;

      style.position = 'absolute';

      style.visibility = 'hidden';

      style.overflow = 'hidden';

   }

   var holder_div = document.createElement('div'); // sliding container, with items and shadow

   with ( holder_div ) {

      className = 'dropmenu';

      style.position = 'relative';

   }

   var shadow_div = document.createElement('div'); // shadow layer, to emulate shadow

   with ( shadow_div ) {

      className = 'shadow';

      style.position = 'absolute';

   }

   var items_table = document.createElement('table'); // items table

   var items_table_body =  document.createElement('tbody');

   with (items_table) {

      border = 0;

      cellPadding = 0;

      cellSpacing = 0;

      className = 'items';

      style.position = 'relative';

      items_table.style.zIndex = 1;

   }

   // construct structure

   items_table.appendChild(items_table_body);

   holder_div.appendChild(shadow_div);

   holder_div.appendChild(items_table);

   main_div.appendChild(holder_div);

   // assigning to body

   document.body.appendChild(main_div);



   // public functions

   // function RealignContent()

   // realign internal menu content, like correct shadow position

   this.RealignContent = function () {

      shadow_div.style.width = items_table.offsetWidth + 'px';

      shadow_div.style.height = items_table.offsetHeight + 'px';



      shadow_div.style.top = '2px';

      shadow_div.style.left = '2px';



      holder_div.style.width = items_table.offsetWidth + 2 + 'px';

      holder_div.style.height = items_table.offsetHeight + 2 + 'px';

      main_div.style.height = items_table.offsetHeight + 5 + 'px';

      main_div.style.width = items_table.offsetWidth + 5 + 'px';

      if ( (_this.AnimationType != 'fade') | (typeof holder_div.style.filter == 'undefined')  ) {

         // not fade, or fade but not IE

         // strange bug here ... shadow is undercovering items ... i don't understand why.

         cDropMenu.SetTransparencity(shadow_div, cDropMenu.shadow_level);

      }

      switch  ( this.AnimationType ) {

         case 'slide': {

            if ( this.Parent == null ) holder_div.style.top = - holder_div.offsetHeight + 'px';

                             else holder_div.style.left = - holder_div.offsetWidth + 'px';

            break;

         }

         case 'fade' : {

            cDropMenu.SetTransparencity(main_div, 0);

            break;

         }

      }

   }

   // function addItem(sCaption, sUrl)

   // sCaption - item caption only text may be here

   // sUrl - url to redirection

   this.addItem = function (sCaption, sUrl) {

      var item_id = this.items.length;

      var menu_item = new cDropMenuItem (sCaption, sUrl);

      menu_item.id = item_id;

      menu_item.Parent = this;

      this.items[item_id] = menu_item

      items_table_body.appendChild(menu_item.getItemRow());

      this.RealignContent();

      return this.items[item_id];

   }

   this.SetItemsWidth = function (iNewWidth) {

      items_table.style.width = iNewWidth + 'px';

      this.RealignContent();

}



   this.AttachTo = function (oObject) {

      cDropMenu.AttachEvent(oObject,'mouseover', attached_mouseover);

      cDropMenu.AttachEvent(oObject,'mouseout', attached_mouseout);

   }

   this.AlignTo = function (oObject) {

      var object_coord = cDropMenu.GetRelativeCoord(oObject);

      switch (this.AlignPosition) {

         case 'bottom' : { object_coord[0] += oObject.offsetHeight; break; }

         case 'right'  : { object_coord[1] += oObject.offsetWidth; break; }

      }

      main_div.style.top = object_coord[0] + 'px';

      main_div.style.left = object_coord[1] + 'px';

   }

   this.Show = function () {

      this.isOpen = true;

      animation_start();

   }

   this.Hide = function () {

      this.ClearTimers();

      this.isOpen = false;

      animation_start();

   }

   this.TimeoutHide = function () {

      this.ClearTimers();

      main_div.style.zIndex = 0;

      if ( !this.isOpen )  return false;

      var timeout_hide = ( this.Parent != null ) ? Math.round(this.HideTimeout / 3) : this.HideTimeout;

      this.HideTimer = window.setTimeout('cDropMenu.instances[' + this.id + '].Hide();', timeout_hide);

      if ( this.Parent != null ) {

         this.Parent.setSelected( false );

      }



   }

   this.CancelTimeoutHide = function () {

      window.clearTimeout(this.HideTimer);

      this.HideTimer = null;

      if ( this.Parent != null )

         this.Parent.setSelected( true );

   }

   this.TimeoutShow = function () {

      if ( !this.isOpen ) {

         this.ShowTimer = window.setTimeout('cDropMenu.instances[' + this.id + '].Show();', 250);

      }

   }

   this.CancelTimeoutShow = function () {

      window.clearTimeout(this.ShowTimer);

      this.ShowTimer = null;

   }

   this.ClearTimers = function () {

      window.clearTimeout(this.HideTimer);

      this.HideTimer = null;

      window.clearTimeout(this.ShowTimer);

      this.ShowTimer = null;

   }



   // private functions

   function animation_start () {

      animation_timer = new cStepTimer();



      switch ( _this.AnimationType ) {

         case 'slide' : {

            var moving_axis = 0;

            if ( _this.Parent == null ) {

               // default moving for top to bottom

               moving_axis = holder_div.offsetHeight;

               animation_timer.onStep = animation_slidetop_step;

            } else {

               // moving from left to right

               moving_axis = holder_div.offsetWidth;

               animation_timer.onStep = animation_slideleft_step;

            }

            if ( _this.isOpen ) {

               animation_timer.startPoint =  (- moving_axis);

               animation_timer.stopPoint = 0;

               main_div.style.zIndex = 1;

            } else {

               animation_timer.startPoint = 0;

               animation_timer.stopPoint = (- moving_axis);

               main_div.style.zIndex = 0;

            }

            break;

         }

         case 'fade' : {

            if ( _this.isOpen ) {

               animation_timer.startPoint = 0;

               animation_timer.stopPoint = 100;

            } else {

               animation_timer.startPoint = 100;

               animation_timer.stopPoint = 0;

            }

            animation_timer.onStep = animation_fade_step;

            break;

         }

         case 'none' : {

            animation_timer.startPoint = 0;

            animation_timer.stopPoint = 1;

            animation_timer.desiredTime = 1;

            break;

         }

      }



      // reset to default step

      animation_timer.onStep(animation_timer.startPoint);

      animation_timer.onEnd = animation_stop;

      animation_timer.Start();

      if ( _this.isOpen ) {

         main_div.style.visibility = 'visible';

      }

   }

   function animation_stop () {

      if ( !_this.isOpen )

         main_div.style.visibility = 'hidden';

   }

   function animation_slidetop_step ( value ) {

      holder_div.style.top = value + 'px';

   }

   function animation_slideleft_step ( value ) {

      holder_div.style.left = value + 'px';

   }

   function animation_fade_step ( value ) {

      cDropMenu.SetTransparencity(main_div, value);

   }

   function attached_mouseover (oEvent) {

      if ( _this.isOpen ) {

         _this.CancelTimeoutHide();

         return true;

      }

      var oTarget = ( window.event ) ? window.event.srcElement : oEvent.target;

      _this.AlignTo(oTarget);

      _this.Show();

   }

   function attached_mouseout (oEvent) {

      _this.TimeoutHide();

   }

}





function cDropMenuItem(caption, url) {

   this.caption = caption;

   this.url = url;

   this.id = -1;

   this.Parent = null;

   this.Submenu = null;



   var _this = this;



   with (document) {

      var caption_cell = createElement('td');

      caption_cell.appendChild(createTextNode(caption));

      caption_cell.noWrap = true;

      var submenu_cell = createElement('td');

      var item_row  = createElement('tr');

      item_row.appendChild(caption_cell);

      item_row.appendChild(submenu_cell);

   }



   function row_mouseover () {

      _this.setSelected( true );

      if ( _this.Submenu != null ) {

         _this.Submenu.AlignTo(this);

         _this.Submenu.TimeoutShow();

      }

   }

   function row_mouseout () {

      _this.setSelected( false );

      if ( _this.Submenu != null ) {

         _this.Submenu.TimeoutHide();

      }

   }

   function caption_click () {

      _this.setSelected( false );

      window.location.href = _this.url;

   }



   // setting mouseover & mouseout

   item_row.onmouseover = row_mouseover;

   item_row.onmouseout = row_mouseout;

   caption_cell.onclick = caption_click;





   // public functions

   this.addSubmenu = function () {

      this.Submenu = new cDropMenu();

      with ( this.Submenu ) {

         Parent = this;

         AlignPosition = 'right';

      }



      var img = document.createElement('img');

      img.src = cDropMenu.submenu_image.url;

      img.alt = '';

      img.width = cDropMenu.submenu_image.width;

      img.height = cDropMenu.submenu_image.height;

      submenu_cell.appendChild(img);

      this.Parent.RealignContent();

      return this.Submenu;

   }

   this.getItemRow = function () {

      return item_row;

   }

   this.setSelected = function (value) {

      if ( value ) {

         item_row.className = 'selected';

         this.Parent.CancelTimeoutHide();

      } else {

         item_row.className = '';

         this.Parent.TimeoutHide();

      }

   }

}



cStepTimer.instances = [];

cStepTimer.DefaultTime = 150;

cStepTimer.TimerResolution = 10;

cStepTimer.TimerID = null;



function cStepTimer(start_point, stop_point, desired_time) {

   this.startPoint = start_point;

   this.stopPoint = stop_point;

   if ( typeof desired_time == 'undefined' ) desired_time = cStepTimer.DefaultTime;

   this.desiredTime = desired_time;

   this.onStep = null;

   this.onEnd = null;





   this.Start = function () {

      this.direction = this.startPoint < this.stopPoint;

      this.currentPosition = this.startPoint;

      if ( this.direction ) {

         this.step = Math.round ( Math.abs(this.stopPoint - this.startPoint) / (this.desiredTime / cStepTimer.TimerResolution));

      } else {

         this.step = Math.round (  - Math.abs(this.startPoint - this.stopPoint) / (this.desiredTime / cStepTimer.TimerResolution));

      }

      cStepTimer._add( this );

   }

   this.Stop = function () {

      cStepTimer._remove ( this );

   }



   this.Step = function () {

      this.currentPosition += this.step;

      //alert(this.currentPosition);

      var completed_steps = false;

      completed_steps = ( this.direction ) ? this.currentPosition > this.stopPoint : this.currentPosition < this.stopPoint;

      if ( completed_steps ) {

         if ( this.onStep ) this.onStep(this.stopPoint);

         if ( this.onEnd ) this.onEnd();

         cStepTimer._remove(this);

         return;

      }



      if ( this.onStep ) this.onStep(this.currentPosition);

   }

}



cStepTimer._add = function ( instance ) {

   this.instances[this.instances.length] = instance;

   if ( this.instances.length == 1 ) {

      this.TimerID = window.setInterval("cStepTimer._tick_all()" , cStepTimer.TimerResolution);

   };

}

cStepTimer._remove = function ( instance ) {

  for (i=0; i<this.instances.length; i++) {

    if (this.instances[i] == instance) {

       this.instances = this.instances.slice(0,i).concat (this.instances.slice(i+1));

       break;

    };

  };

  if (this.instances.length == 0) {

    window.clearInterval(this.TimerID);

    this.TimerID = null;

  };

};

cStepTimer._tick_all = function () {

  for (i=0; i<this.instances.length; i++) {

    this.instances[i].Step();

  };

};



function init_menu() {

   var oMenu = new cDropMenu();
   oMenu.addItem('Доставка','/dostavka.php');
   oMenu.addItem('Поставщикам','/snab.php');
   oMenu.addItem('Правила комплектации 3 т контейнера','/3tonn.php');
   oMenu.addItem('Правила комплектации 5 т контейнера','/5tonn.php');
   oMenu.AttachTo(document.getElementById('mnuServices'));

   var oMenu2 = new cDropMenu();
    //   oMenu2.addItem('Запчасти УРАЛ прайс-лист в формате XLS','/price.xls');
    //   oMenu2.addItem('Автозапчасти Урал Альтернативного производства','/price2.xls');
    //   oMenu2.addItem('Онлайн прайс','/price/');
   oMenu2.addItem('Скидки на запчасти Урал','/form.php');
   oMenu2.addItem('Автомобили Урал','/autoural/');
   oMenu2.AttachTo(document.getElementById('mnuPrices'));

   var oMenu3 = new cDropMenu();
   oMenu3.addItem('Каталог Урал 4320','/catalog.php');
   oMenu3.addItem('Каталог Двигатель ЯМЗ-236М2','/cat236.php');
   oMenu3.addItem('Каталог Урал 5557','/cat5557.php');
   oMenu3.addItem('Каталог Урал ЯМЗ-238М2','/cat238m2.php');
   oMenu3.addItem('Каталог Урал 63685','/cat63685/');
   oMenu3.addItem('ИТЗ изменения','/itcural/');
   oMenu3.AttachTo(document.getElementById('mnuCatalog'));

}



cDropMenu.AttachEvent(window.addEventListener || window.attachEvent ? window : document.addEventListener ? document : null,

                 'load',init_menu);