scheduler.config.year_x = 4;
scheduler.config.year_y = 3;
scheduler.config.year_mode_name = "year";
scheduler.xy.year_top = 0;

scheduler.templates.year_date =  function(date){
	return scheduler.date.date_to_str(scheduler.locale.labels.year_tab+" %Y")(date);
};
scheduler.templates.year_month =  scheduler.date.date_to_str("%F");
scheduler.templates.year_scale_date = scheduler.date.date_to_str("%D");
scheduler.templates.year_tooltip = function(s,e,ev){
   return ev.text
};


   
(function(){
   
var is_year_mode = function(){
   return scheduler._mode == scheduler.config.year_mode_name;
}

scheduler.dblclick_dhx_month_head=function(e){
   if (is_year_mode()){
      var t = (e.target||e.srcElement);
      if (t.parentNode.className.indexOf("dhx_before")!=-1 || t.parentNode.className.indexOf("dhx_after")!=-1) return false;
      var start = this.templates.xml_date(t.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode.getAttribute("date"));
      start.setDate(parseInt(t.innerHTML,10));
      var end = this.date.add(start,1,"day")
      if (!this.config.readonly && this.config.dblclick_create)
         this.addEventNow(start.valueOf(), end.valueOf(), e);
   }
}   

var chid = scheduler.changeEventId;
scheduler.changeEventId = function(){
   chid.apply(this,arguments);
   if (is_year_mode())
      this.year_view(true);
}


var old = scheduler.render_data;
var to_attr = scheduler.date.date_to_str("%Y/%m/%d");
var from_attr = scheduler.date.str_to_date("%Y/%m/%d");
scheduler.render_data=function(evs){ 
   if (!is_year_mode()) return old.apply(this,arguments);
   for (var i=0; i<evs.length; i++)
      this._year_render_event(evs[i]);
}

var clear = scheduler.clear_view;
scheduler.clear_view = function(){
   if (!is_year_mode()) return clear.apply(this,arguments);
   for (var i=0; i < marked.length; i++) {
      marked[i].className = "dhx_month_head";
      marked[i].setAttribute("date","")
   };
   marked = [];
}


scheduler.hideToolTip=function(){
   if (this._tooltip){
      this._tooltip.style.display = "none";
      this._tooltip.date = new Date(9999,1,1);
   }
    
}
scheduler.showToolTip=function(date,pos,e,src){
   if (this._tooltip){
     if (this._tooltip.date.valueOf() == date.valueOf()) return;
     this._tooltip.innerHTML="";
   } else {
     var t = this._tooltip = document.createElement("DIV");
     t.className = "dhx_tooltip";
     document.body.appendChild(t);
     t.onclick = scheduler._click.dhx_cal_data;
     
   }
   var evs = this.getEvents(date,this.date.add(date,1,"day"));
   var html = "";
   
   for (var i=0; i<evs.length; i++){
        html+="<div class='dhx_tooltip_line' event_id='"+evs[i].id+"'>"
        html+="<div class='dhx_tooltip_date'>"+(evs[i]._timed?this.templates.event_date(evs[i].start_date):"")+"</div>";
        html+="<div class='dhx_event_icon icon_details'>&nbsp;</div>";
     html+=this.templates.year_tooltip(evs[i].start_date, evs[i].end_date,evs[i])+"</div>";
   }
   
   this._tooltip.style.display="";   
   this._tooltip.style.top = "0px";
   
         
   if (document.body.offsetWidth-pos.left-this._tooltip.offsetWidth < 0)
      this._tooltip.style.left = pos.left-this._tooltip.offsetWidth+"px";
   else
      this._tooltip.style.left = pos.left+src.offsetWidth+"px";
      
   this._tooltip.date = date;
   this._tooltip.innerHTML = html;
   
   if (document.body.offsetHeight-pos.top-this._tooltip.offsetHeight < 0)
      this._tooltip.style.top= pos.top-this._tooltip.offsetHeight+src.offsetHeight+"px";
   else
      this._tooltip.style.top= pos.top+"px";
}

scheduler._init_year_tooltip=function(){
   dhtmlxEvent(scheduler._els["dhx_cal_data"][0], "mouseover", function(e){
      if (!is_year_mode()) return;
      
      var e = e || event;
      var src = e.target||e.srcElement;
      if ((src.className||"").indexOf("dhx_year_event")!=-1)
         scheduler.showToolTip(from_attr(src.getAttribute("date")),getOffset(src),e,src);
      else
         scheduler.hideToolTip();
   })
   this._init_year_tooltip=function(){};
}

scheduler.attachEvent("onSchedulerResize",function(){
   if (is_year_mode()){
      this.year_view(true);
      return false;
   }
   return true;
});
scheduler._get_year_cell=function(d){
   //there can be more than 1 year in view
   //year can start not from January
   var m = d.getMonth()+12*(d.getFullYear()-this._min_date.getFullYear())-this.week_starts._month; 
   var t = this._els["dhx_cal_data"][0].childNodes[m];
   var d  = this.week_starts[m]+d.getDate()-1;
   
   
   return t.childNodes[2].firstChild.rows[Math.floor(d/7)].cells[d%7].firstChild;
}


var marked = [];
scheduler._mark_year_date=function(d,ev){
   var c = this._get_year_cell(d);
   c.className = "dhx_month_head dhx_year_event "+this.templates.event_class(ev.start_date,ev.end_date,ev);
   c.setAttribute("date",to_attr(d))
   marked.push(c);
}
scheduler._unmark_year_date=function(d){
   this._get_year_cell(d).className = "dhx_month_head";
}
scheduler._year_render_event=function(ev){
   var d = ev.start_date;
   if (d.valueOf()<this._min_date.valueOf()) 
      d = this._min_date;
   else d = this.date.date_part(new Date(d));
   
   while (d<ev.end_date){
     this._mark_year_date(d,ev);
      d = this.date.add(d,1,"day");
      if (d.valueOf()>=this._max_date.valueOf()) 
         return;
   }
}
scheduler.year_view=function(mode){
   if (mode){
      var temp = scheduler.xy.scale_height;
      scheduler.xy.scale_height = -1;
   }
   
      scheduler._els["dhx_cal_header"][0].style.display=mode?"none":"";
      scheduler.set_sizes();
      
   if (mode)
      scheduler.xy.scale_height = temp;
   
   
   scheduler._table_view = mode;
   if (this._load_mode && this._load()) return;
   
   if (mode){
      scheduler._init_year_tooltip();
      scheduler._reset_year_scale();   
      scheduler.render_view_data();
   } else {
      scheduler.hideToolTip();
   }
}
scheduler._reset_year_scale = function(){
   this._cols=[]; this._colsS={};
   var week_starts = []; //start day of first week in each month
   var b=this._els["dhx_cal_data"][0];
   
   var c = this.config;
   b.scrollTop=0; //fix flickering in FF
   b.innerHTML="";
   
   var dx = Math.floor(parseInt(b.style.width)/c.year_x);
   var dy = Math.floor((parseInt(b.style.height)-scheduler.xy.year_top)/c.year_y);
   if (dy<190) {
      dy = 190;
      dx = Math.floor((parseInt(b.style.width)-scheduler.xy.scroll_width)/c.year_x);
   }
   
   var summ = dx-11;
   var left = 0;
   var week_template = document.createElement("div");
   var dummy_date = this.date.week_start(new Date());
   for (var i=0; i<7; i++){
      this._cols[i]=Math.floor(summ/(7-i));
      this._render_x_header(i,left,dummy_date,week_template);
      dummy_date = this.date.add(dummy_date,1,"day");
      summ-=this._cols[i];
      left+=this._cols[i];
   }
   week_template.lastChild.className+=" dhx_scale_bar_last";
   
   var sd = this.date[this._mode+"_start"](this.date.copy(this._date));
   var ssd=sd;
   
   for (var i=0; i<c.year_y; i++)
      for (var j=0; j<c.year_x; j++){
         var d = document.createElement("DIV");
         d.style.cssText="position:absolute;";
         d.setAttribute("date",this.templates.xml_format(sd));
         d.innerHTML="<div class='dhx_year_month'></div><div class='dhx_year_week'>"+week_template.innerHTML+"</div><div class='dhx_year_body'></div>";
         d.childNodes[0].innerHTML=this.templates.year_month(sd);
         
         var dd = this.date.week_start(sd);
         var ed = this._reset_month_scale(d.childNodes[2],sd,dd);
         
         var r=d.childNodes[2].firstChild.rows;
       for (var k=r.length; k<6; k++) {
            r[0].parentNode.appendChild(r[0].cloneNode(true));
            for (var ri=0; ri < r[k].childNodes.length; ri++) {
               r[k].childNodes[ri].className = "dhx_after";
               r[k].childNodes[ri].firstChild.innerHTML = scheduler.templates.month_day(ed);
               ed = scheduler.date.add(ed,1,"day");
            };
         }
            
         
         b.appendChild(d);
         
         var dt = Math.round((dy-190)/2);
         d.style.marginTop=dt+"px";
         this.set_xy(d,dx-10,dy-dt-10,dx*j+5,dy*i+5+scheduler.xy.year_top);
         
         week_starts[i*c.year_x+j] = (sd.getDay()-(this.config.start_on_monday?1:0)+7)%7;
         sd = this.date.add(sd,1,"month");
         
      }
   this._els["dhx_cal_date"][0].innerHTML=this.templates[this._mode+"_date"](ssd,sd,this._mode);      
   this.week_starts = week_starts;
   week_starts._month = ssd.getMonth();
   this._min_date = ssd;
   this._max_date = sd;
}

})();