Uprava scriptu

function unit(cislo) {
   var unit = document.getElementById("unit");
   var divs = unit.getElementsByTagName("div");
   for (var i = 0; i < divs.length; i++) {
      if (divs[i].id != cislo) { divs[i].className = "subunit_hidden"; }
      else {
   if (divs[i].className == "subunit_visible") { divs[i].className = "subunit_hidden"; }
   else { divs[i].className = "subunit_visible"; }   
      }
   }
}

<a href="javascript:unit(1)">Nieco nieco</a>
<a href="javascript:unit(2)">O kom o com</a>
<div id="unit">
<div class="subunit_hidden" id="1">This is foo1</div>
<div class="subunit_hidden" id="2">This is foo2</div>
</div>