var links=new Array();
  //links[1]='http://www.kongreskadry.pl/dla-uczestnikow/zgloszenie-expo/?id=pasek_8';
  
  
  links[1]='http://www.seminaria.zwiekiem.nf.pl/program.htm?id_kampania=gdansk';
  links[2]='http://szkolenia.zwiekiem.nf.pl/terminy.htm?id_kampania=grudzien';
  
  function chg_place(curr, chg) {                                                                                              
    //alert('curr: '+curr+', chg: '+chg);

    var max=links.length-1;

    if (curr==0) {
      curr=(Math.floor(Math.random()*max+1) );
      //curr=7;
    }
    var next=parseInt(curr)+parseInt(chg);
    if (parseInt(next)>max) {
      next=1;
    } else if (parseInt(next)==0) {
      next=max;
    }
    var x=document.getElementById('place');
    if(x !== null) {
		  x.style.backgroundImage='url(http://z.nf.pl/place/place_'+next+'.png)';
    }
    var y=document.getElementById('fcurrlnk');
    var z=document.getElementById('fcurr');
    y.value=links[next];
    z.value=next;
    //document.getElementById('linkplace').href=getElementById('fcurrlnk').value;
    //alert(y.value);
		var oLinkPlace = document.getElementById('linkplace');
		if (oLinkPlace) {
			oLinkPlace.href=y.value;
		}
  }