function activate(to_act)
      {
        document.images[to_act].src= "./img/"+to_act+"_hi.gif";
      }
      function deactivate(to_act)
      {
        document.images[to_act].src= "./img/"+to_act+"_lo.gif";
      }



function single_gallery(plik,aw,ah)
{


         ustawienia="width="+aw+",height="+ah+",left=50,top=50,toolbar=no.location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes";
         okno=window.open(plik,'zoom',ustawienia);
}



    if (document.images) 
	{
	for (var j=1; j<=3; j++)
	    {
            eval('m_top'+j+'_hi = new Image');
            eval('m_top'+j+'_lo = new Image');
            eval('m_top'+j+'_hi.src = "img/m_top'+j+'_hi.gif"');
            eval('m_top'+j+'_lo.src = "img/m_top'+j+'_lo.gif"');
	    }
         pl_hi = new Image;
         pl_lo = new Image;
         pl_hi.src = './img/pl_hi.gif';
         pl_lo.src = './img/pl_lo.gif';

         en_hi = new Image;
         en_lo = new Image;
         en_hi.src = './img/en_hi.gif';
         en_lo.src = './img/en_lo.gif';

         menu_button_hi = new Image;
         menu_button_lo = new Image;
         menu_button_hi.src = './img/menu_button_on.jpg';
         menu_button_lo.src = './img/menu_button.jpg';

         mt_hi = new Image;
         mt_lo = new Image;
         mt_hi.src = './img/mt_hi.gif';
         mt_lo.src = './img/mt_lo.gif';

         news_arrow_hi = new Image;
         news_arrow_lo = new Image;
         news_arrow_hi.src = './img/news_arrow_hi.gif';
         news_arrow_lo.src = './img/news_arrow.gif';

         impreza_hi = new Image;
         impreza_lo = new Image;
         impreza_hi.src = './img/imprezy_arrow_hi.gif';
         impreza_lo.src = './img/imprezy_arrow.gif';
	}
    else 
	{
	for (var j=1; j<=3; j++);
	    {
            eval('m_top'+j+'_hi=""');
            eval('m_top'+j+'_lo=""');
            eval('document.m_top'+j+'=""');
	    }

         pl_hi="";
         pl_lo="";
         document.pl="";

         en_hi="";
         en_lo="";
         document.en="";

         mt_hi="";
         mt_lo="";

    	news_arrow_hi="";
	news_arrow_lo="";

    	impreza_hi="";
	impreza_lo="";

	for (var i=1; i<=5; i++)
	    {
            eval('document.mt'+i+'=""');
            eval('document.news'+i+'=""');
	    eval('document.impreza'+i+'=""');
	    }

	}

function zoom(plik)
{
        okno=null;
        if(window.screen)
        {
                aw =screen.availWidth;
                ah =screen.availHeight;
        }
        else
        {
                aw =640;
                ah =520;
        }
        ustawienia="width=800,height=600,left=0,top=0,toolbar=no.location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no";
        okno=window.open(plik,'zoom',ustawienia);
}

function gallery12(plik)
{
        okno=null;
        if(window.screen)
        {
                aw =screen.availWidth;
                ah =screen.availHeight;
        }
        else
        {
                aw =640;
                ah =520;
        }
        ustawienia="width=800,height=660,left=0,top=0,toolbar=no.location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no";
        okno=window.open(plik,'zoom',ustawienia);
}