function przestaw( i )
     {
        var box1 = document.getElementById( "slide_box" );
        var box2 = document.getElementById( "slide_box2" );

        var bg1 = i;
        var bg2 = 0;
        if ( i<8 ) bg2 = i+1;
        else bg2 = 1;

        box1.style.backgroundImage= "url( klienci/0" + bg1 + ".gif )";
        box2.style.backgroundImage= "url( klienci/0" + bg2 + ".gif )";
        box1.style.opacity="1";
        box1.style.filter = "alpha(opacity=100)";

        box2.style.opacity="1";
        box2.style.filter = "alpha(opacity=100)";
     }

     function slide( przez, slide )
     {
        var slide_box = document.getElementById( "slide_box" );
        if ( przez > 0 )
        {
           slide_box.style.opacity = "0."+przez;
           slide_box.style.filter = "alpha(opacity="+przez+"0)";

           setTimeout( "slide( " + (przez-1) + ", " + slide + " )", 100 );
        }
        else
        {
           slide_box.style.opacity = "0";
           slide_box.style.filter = "alpha(opacity=0)";

           if ( slide < 8 )
           {
              setTimeout( "slide( 9, " + (slide+1) + " )", 1500 );
              setTimeout( "przestaw( "+(slide+1)+" )", 1 );
           }
           else
           {
              setTimeout( "slide( 9, 1 )", 1500 );
              setTimeout( "przestaw( 1 )", 1 );
           }
        }
     }




     function go( addr, id ) {
         WybierzMenu( id );
         parent.location.href = addr + "/";
     }


     function WybierzMenu( id ) {
        wybrane_menu = id;
     }

     function ZapalMenu( id,i )
     {
        var nazwa_box = "menu_start_"+id;
        var box = document.getElementById( nazwa_box );
        var krok = 0;
        box.style.display="block";
         if ( wybrane_menu != id ) {
            if ( i<=10 )
            {
                if ( i==10 )
                {
                   box.style.opacity = i;
                   box.style.filter="alpha(opacity="+i+"0)";
                }
                else
                {
                   box.style.opacity = "0." + i;
                   box.style.filter="alpha(opacity="+i+"0)";
                }
                krok = i+1;
                timer_menu_zapal = setTimeout( "ZapalMenu( '"+id+"', " + krok + " )", 20 );
            }
         }
         else
         {
            box.style.opacity = 1;
            box.style.filter="alpha(opacity=100)";
         }
     }

     function ZgasMenu( id,i ) {
        var nazwa_box = "menu_start_"+id;
        var box = document.getElementById( nazwa_box );
        clearTimeout( timer_menu_zapal );
        if ( wybrane_menu != id )
           box.style.display="none";
     }

     function ClrNew(elem, txt) {
         if ( elem.value==txt )
            elem.value='';
     }
     function ClrNew2(elem, txt) {
         if ( elem.value=='' )
            elem.value=txt;
     }