var statusinfo = new Array(); 

statusinfo[1] = "O nas";
statusinfo[2] = "Drukarnia";
statusinfo[3] = "Download";
statusinfo[4] = "Upload";
statusinfo[5] = "Kontakt";

function go(x,y)
{
  window.status = statusinfo[x];
  var obj;
  obj = 'document.M' + x + '.src="./ico/strzalka' + y + '.gif"';    
  eval(obj);  
  return true;
}