function sadala(id,name,level,active)
{
      this.id=id;
      this.name=name;
      this.level=level;
      this.active=active;
}

function menu(obj, radit)
{
      this.aSadalas = [];
      this.radit = radit>5 ? radit : 5;
      this.vieta = 0;
      this.aktivs1 = 0;
      this.aktivs2 = 0;
}

menu.prototype.add = function(id,name,level,active)
{
      this.aSadalas[this.aSadalas.length]=new sadala(id,name,level,active);
      if(active==true)
      {
            this.aktivs1=this.aktivs2>0 ? this.aktivs1 : this.aSadalas.length-1;
            this.aktivs2=this.aSadalas.length;
      }
}

menu.prototype.paradit = function(action)
{
      izvele='';
      no = 0;
      lidz = this.radit;
      
      if(this.aSadalas.length > this.radit)
      {
            if(action=='load')
            {
                  no = this.aktivs1;
                  lidz = no + this.radit;
                  if(lidz > this.aSadalas.length)
                  {
                        lidz = this.aSadalas.length;
                        no = lidz - this.radit;
                  }
                  
                  if(this.aktivs2 > lidz)
                  {  
                        lidz = this.aktivs2;
                        no = lidz - this.radit;
                  }
                  this.vieta=no;
            }
            else
            {
                  no = this.vieta;
                  lidz = no + this.radit;
                  if(lidz > this.aSadalas.length)
                  {
                        lidz = this.aSadalas.length;
                        no = lidz - this.radit;
                  }
                  this.vieta=no;
            }
      }
      else
      {
            lidz = this.aSadalas.length;
      }

      for(var f=no; f<lidz; f++)
      {
            //speciaali prieksh kontakti (id=35) un mekleetaajam (id=36)(id=130)
            izvele+=this.aSadalas[f].id==35 || this.aSadalas[f].id==36 || this.aSadalas[f].id==130 ? '<tr><td height=25 nowrap></td></tr><tr><td style="background:white;height:1px"></td></tr>' : '';
            
            izvele+='<tr><td class=left_menu'+(this.aSadalas[f].active ? '_akt' : '')+'><div class=lev'+this.aSadalas[f].level+'>';
            
            //speciaali prieksh kontakti (id=35) un mekleetaajam (id=36)(id=130)
            izvele+=(this.aSadalas[f].id==35 || this.aSadalas[f].id==36 || this.aSadalas[f].id==130 ? '<table cellpadding=0 cellspacing=0 border=0><tr><td width=30 nowrap align=left>' : '')+(this.aSadalas[f].id==35 ? '<img src=images/kontakti.gif border=0></td><td>' : '')+(this.aSadalas[f].id==36 || this.aSadalas[f].id==130 ? '<img src=images/lupa.gif border=0></td><td>' : '');
            
            izvele+='<a href="?id='+this.aSadalas[f].id+'">'+this.aSadalas[f].name+'</a>';
            
            //speciaali prieksh kontakti (id=35) un mekleetaajam (id=36)(id=130)
            izvele+=this.aSadalas[f].id==35 || this.aSadalas[f].id==36 || this.aSadalas[f].id==130 ? '</td></tr></table>' : '';
            
            izvele+='</div></td></tr>';
      }
      
      izvele = izvele ? '<table cellpadding=0 cellspacing=0 border=0 width=238>'+(this.vieta>0 ? '<tr><td align=center><img src="images/up_big.gif" border=0 onclick="up();" width="20" height="15" style="cursor:pointer"></td></tr>' : '<tr><td height="15" nowrap></td></tr>')+'<tr><td style="background:white;height:1px"></td></tr>'+izvele+(lidz<this.aSadalas.length ? '<tr><td align=center><img src="images/down_big.gif" border=0 onclick="down();" width="20" height="15" style="cursor:pointer"></td></tr>' : '<tr><td height="15" nowrap></td></tr>')+'</table>' : '';

      document.getElementById('left_menu').innerHTML = izvele;
}

function up()
{
      m.vieta--;
      m.paradit('move');
}

function down()
{
      m.vieta++;
      m.paradit('move');
}