divstate1 = "none";
	divstate2 = "none";
	divid1 = "featured";
	divid2 = "normal";
	function perform(ref,which) {
	  ie=(document.all);
	  lay=(document.layers);
	  dom=(document.getElementById&&!document.all);
	  divstate=(which>0)?divstate2:divstate1;
	  if(ie) document.all[ref].style.display = divstate;
	  if(lay) document.layers[ref].display = divstate;
	  if(dom) document.getElementById(ref).style.display=divstate;
	}
	function showhide(reference) {
	  if(reference==divid1) {
		divstate1 = divstate1=="block"||divstate2=="block"?"none":"block";
		perform(divid1,0);
		document.getElementById("feat").disabled = true;
		document.getElementById("norm").disabled = true;
	  } else {
		divstate2 = divstate1=="block"||divstate2=="block"?"none":"block";
		perform(divid2,1);
		document.getElementById("feat").disabled = true;
		document.getElementById("norm").disabled = true;
	  }
	}