function proizvoditel()
  {
    var color;
    col = document.getElementById('select_proizvoditel');
    col2 = document.getElementById('select_marka');
    color = document.getElementById('select_proizvoditel').value;
    if (color == ""){
      document.getElementById('strelka1').style.background = 'url(/images/str1.gif)';
      document.getElementById('select_marka').disabled = true;
      document.getElementById('strelka2').style.background = 'url(/images/str2.gif)';
      document.getElementById('select_god_vipuska').disabled = true;
      document.getElementById('strelka3').style.background = 'url(/images/str3.gif)';
      document.getElementById('select_modifikacia').disabled = true;
      return;
    }else{
      document.getElementById('strelka1').style.background = 'url(/images/str1_green.gif)';
      $("#select_marka").load('/ajax/cars_models.php?car='+color,function(){
        col2.selectedIndex=0;
        document.getElementById('select_marka').disabled = false;
      });
    }
  }
  function marka()
  {
    var color;
    col = document.getElementById('select_marka');
    col2 = document.getElementById('select_god_vipuska');
    color = document.getElementById('select_marka').value;

    if (color == ""){
      document.getElementById('strelka2').style.background = 'url(/images/str2.gif)';
      document.getElementById('select_god_vipuska').disabled = true;
      return;
    }else{
      document.getElementById('strelka2').style.background = 'url(/images/str2_green.gif)';
      $("#select_god_vipuska").load('/ajax/cars_year.php?model='+color,function(){
        col2.selectedIndex=0;
        document.getElementById('select_god_vipuska').disabled = false;
      });
    }
  }
  function god_vipuska()
  {
    var color;
    col = document.getElementById('select_god_vipuska');
    col2 = document.getElementById('select_modifikacia');
    color = document.getElementById('select_god_vipuska').value;
    if (color == ""){
      document.getElementById('strelka3').style.background = 'url(/images/str3.gif)';
      document.getElementById('select_modifikacia').disabled = true;
      return;
    }else{
      document.getElementById('strelka3').style.background = 'url(/images/str3_green.gif)';
      $("#select_modifikacia").load('/ajax/cars_mod.php?model='+color,function(){
        col2.selectedIndex=0;
        document.getElementById('select_modifikacia').disabled = false;
      });
    }
  }
  function modifikacia()
  {
    var color;
    color = document.getElementById('select_modifikacia').value;
    if (color == null)
      return;
      document.getElementById('strelka4').style.background = 'url(/images/str4_green.gif)';
      document.getElementById('pokazat').style.display = 'block';
      document.getElementById('pokazat_div').style.display = 'none';
  }

  function open_wind(){
    var h;
    h = document.getElementById('wrap').offsetHeight;
    document.getElementById('alles').style.height = h+ 'px';
    document.getElementById('alles').style.display = 'block';
    document.getElementById('po_markam').style.display = 'block';
    document.getElementById('vibor1').style.display = 'none';
    document.getElementById('vibor2').style.display = 'none';
  }

  function close_wind(){
    document.getElementById('alles').style.display = 'none';
    document.getElementById('po_markam').style.display = 'none';
    document.getElementById('vibor1').style.display = 'block';
    document.getElementById('vibor2').style.display = 'block';
  }

  function get_url(){
    if(document.getElementById('select_marka').disabled == false){
    if(document.getElementById('select_god_vipuska').disabled == false){
    if(document.getElementById('select_modifikacia').disabled == false){
      document.location.href="/catalog/auto/"+document.getElementById('select_modifikacia').value+"/";
      close_wind();
    }}}
  };