//---->

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); }
}

var cur_lyr;	// holds id of currently visible layer
function swapLayers(id) {
  if (cur_lyr) hideLayer(cur_lyr);
  showLayer(id);
  cur_lyr = id;
}

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

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

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


var aryImages = new Array();

aryImages[1] = "images/room1.jpg";
aryImages[2] = "images/room2a.jpg";
aryImages[3] = "images/room3a.jpg";
aryImages[4] = "images/room4a.jpg";
aryImages[5] = "images/room5a.jpg";
aryImages[6] = "images/room6a.jpg";
aryImages[7] = "images/room7a.jpg";
aryImages[8] = "images/room8a.jpg";
aryImages[9] = "images/room9a.jpg";
aryImages[10] = "images/room10a.jpg";

for (i=0; i < aryImages.length; i++) {
	var preload = new Image();
	preload.src = aryImages[i];
}

function swap(imgIndex, imgTarget) {
	document[imgTarget].src = aryImages[imgIndex];
}