// 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_link1;
function doLinkClass1(lnk1) {
  if (lnk1 && lnk1.blur) lnk1.blur();	// remove marquee
  if (!lnk1 || cur_link1 == lnk1) return;
  if (cur_link1) cur_link1.className = "catoff";
  lnk1.className = "caton";
  cur_link1 = lnk1;
}

var cur_lyr1;	// holds id of currently visible layer
function swapLayers1(lnk1,id1) {
  doLinkClass1(lnk1);
  if (cur_lyr1) hideLayer1(cur_lyr1);
  showLayer1(id1);
  cur_lyr1 = id1;
}

function showLayer1(id1) {
	var lyr1 = getElemRefs1(id1);
  if (lyr1 && lyr1.css) lyr1.css.display = "block";
}

function hideLayer1(id1) {
  var lyr1 = getElemRefs1(id1);
  if (lyr1 && lyr1.css) lyr1.css.display = "none";
}

function getElemRefs1(id1) {
	var el1 = (document.getElementById)? document.getElementById(id1): (document.all)? document.all[id]: (document.layers)? getLyrRef1(id1,document): null;
	if (el1) el1.css = (el1.style)? el1.style: el1;
	return el1;
}

// get reference to nested layer for ns4
// from old dhtmllib.js by Mike Hall of www.brainjar.com
function getLyrRef1(lyr1,doc) {
	if (document.layers) {
		var theLyr;
		for (var i=0; i<doc.layers.length; i++) {
	  	theLyr = doc.layers[i];
			if (theLyr.name == lyr1) return theLyr;
			else if (theLyr.document.layers.length > 0) 
	    	if ((theLyr = getLyrRef1(lyr1,theLyr.document)) != null)
					return theLyr;
	  }
		return null;
  }
}

function init1(id1,lyr1) {
  var lnk1 = getElemRefs1(id1);
  swapLayers1(lnk1,lyr1);
}