function link(){
tb_show("Video","intro.html?height=400&width=640");
}
function linkVideo(){
tb_show("EU","video.html?height=400&width=640");
}
function linkEU(){
tb_show("EU","eu.html?height=400&width=640");
}

function link_video( file ){
tb_show("EU","video.html?file="+file+"height=400&width=640");
}
     function slideUpMenu1(){
        $("#ospolecnosti-submenu").slideUp('slow');
      }
      function slideUpMenu2(){
        $("#produkty-submenu").slideUp('slow');
      }
    $(document).ready(function(){
      var timeout1, timeout2;
      //prvni podmenu
      $(".ospolecnosti").mouseover(function(){
        window.clearTimeout(timeout1);
        $("#ospolecnosti-submenu").slideDown('fast');
      });
      $(".ospolecnosti").mouseout(function(){
        timeout1 = setTimeout("slideUpMenu1()", 400);
      });
      $("#ospolecnosti-submenu").mouseover(function(){
        window.clearTimeout(timeout1);
      });
      $("#ospolecnosti-submenu").mouseover(function(){
        window.clearTimeout(timeout1);
      });
      $("#ospolecnosti-submenu").mouseout(function(){
        timeout1 = setTimeout("slideUpMenu1()", 400);
      });
      //druhe podmenu
      $(".produkty").mouseover(function(){
        window.clearTimeout(timeout2);
        $("#produkty-submenu").slideDown('fast');
      });
      $(".produkty").mouseout(function(){
        timeout2 = setTimeout("slideUpMenu2()", 400);
      });
      $("#produkty-submenu").mouseover(function(){
        window.clearTimeout(timeout2);
      });
      $("#produkty-submenu").mouseover(function(){
        window.clearTimeout(timeout2);
      });
      $("#produkty-submenu").mouseout(function(){
        timeout2 = setTimeout("slideUpMenu2()", 400);
      });
    });