/****** TopicNav management for xmas module on HP and category ***/
// resize fix for ns4
var origWidth, origHeight;
if (document.layers) {
	origWidth = window.innerWidth; origHeight = window.innerHeight;
	window.onresize = function() { if (window.innerWidth != origWidth || window.innerHeight != origHeight) history.go(0); }
}

// link style change
var cur_link;
function doLinkClass(lnk) {
  if (lnk && lnk.blur) lnk.blur();	// remove marquee
  if (!lnk || cur_link == lnk) return;
  if (cur_link) cur_link.className = "done";
  lnk.className = "on";
  cur_link = lnk;
}

var cur_lyr;	// holds id of currently visible layer
function kk_swapLayers(lnk,id) {
  doLinkClass(lnk);
  if (cur_lyr) kk_hideLayer(cur_lyr);
  kk_showLayer(id);
  cur_lyr = id;
}

function kk_showLayer(id) {
  var lyr = kk_getElemRefs(id);
  if (lyr && lyr.css) lyr.css.visibility = "visible";
}

function kk_hideLayer(id) {
  var lyr = kk_getElemRefs(id);
  if (lyr && lyr.css) lyr.css.visibility = "hidden";
}

function kk_getElemRefs(id) {
	var el = (document.getElementById)? document.getElementById(id): (document.all)? document.all[id]: (document.layers)? kk_getLyrRef(id,document): null;
	if (el) el.css = (el.style)? el.style: el;
	return el;
}

function kk_getLyrRef(lyr,doc) {
	if (document.layers) {
		var theLyr;
		for (var i=0; i<doc.layers.length; i++) {
	  	theLyr = doc.layers[i];
			if (theLyr.name == lyr) return theLyr;
			else if (theLyr.document.layers.length > 0) 
	    	if ((theLyr = kk_getLyrRef(lyr,theLyr.document)) != null)
					return theLyr;
	  }
		return null;
  }
}

function kk_init(id,lyr) {
  var lnk = kk_getElemRefs(id);
  kk_swapLayers(lnk,lyr);
}

function kk_init2()
{
kk_init('lnk3','lyr3');
}