function preloadMainImages() {
if (document.images)
	{
	var btn_aboutarch_roll = new Image
		btn_aboutarch_roll.src = "images/btn_aboutarch_over.gif"
	var btn_aboutwright_roll = new Image
		btn_aboutwright_roll.src = "images/btn_aboutwright_over.gif"
	var btn_designgallery_roll = new Image
		btn_designgallery_roll.src = "images/btn_designgallery_over.gif"
	var btn_designstudio_roll = new Image
		btn_designstudio_roll.src = "images/btn_designstudio_over.gif"
	var btn_howview_roll = new Image
		btn_howview_roll.src = "images/btn_howview_over.jpg"
	var btn_rating_roll = new Image
		btn_rating_roll.src = "images/btn_rating_over.gif"
	var btn_architect_roll = new Image
		btn_architect_roll.src = "images/btn_architect_over.gif"
	var btn_age_roll = new Image
		btn_age_roll.src = "images/btn_age_over.gif"
	var btn_state_roll = new Image
		btn_state_roll.src = "images/btn_state_over.gif"
	var btn_floorplan_roll = new Image
		btn_floorplan_roll.src = "images/btn_floorplan_over.gif"
	var btn_datesubmit_roll = new Image
		btn_datesubmit_roll.src = "images/btn_datesubmit_over.gif"
	var btn_savedesign_roll = new Image
		btn_savedesign_roll.src = "images/btn_savedesign_over.gif"
	var btn_aboutsite_roll = new Image
		btn_aboutsite_roll.src = "images/btn_aboutsite_over.gif"
	var btn_forteachers_roll = new Image
		btn_forteachers_roll.src = "images/btn_forteachers_over.gif"
	var btn_relatedlinks_roll = new Image
		btn_relatedlinks_roll.src = "images/btn_relatedlinks_over.gif"
	var btn_peopleplace_roll = new Image
		btn_peopleplace_roll.src = "images/btn_peopleplace_over.gif"
	var btn_peopleplace2_roll = new Image
		btn_peopleplace2_roll.src = "images/btn_peopleplace2_over.gif"
	var btn_archhandbook_roll = new Image
		btn_archhandbook_roll.src = "images/btn_archhandbook_over.gif"
	var btn_archhandbook2_roll = new Image
		btn_archhandbook2_roll.src = "images/btn_archhandbook2_over.gif"
	var btn_home_roll = new Image
		btn_home_roll.src = "images/btn_home_over.gif"
	var btn_replay_roll = new Image
		btn_replay_roll.src = "images/btn_replay_over.gif"
	var btn_publicbuildings2_roll = new Image
		btn_publicbuildings2_roll.src = "images/btn_publicbuildings2_over.gif"
	var btn_churches2_roll = new Image
		btn_churches2_roll.src = "images/btn_churches2_over.gif"
	var btn_residential2_roll = new Image
		btn_residential2_roll.src = "images/btn_residential2_over.gif"
	var btn_lifecareer2_roll = new Image
		btn_lifecareer2_roll.src = "images/btn_lifecareer2_over.gif"
	var btn_lifecareer_roll = new Image
		btn_lifecareer_roll.src = "images/btn_lifecareer_over.gif"
	var btn_publicbuildings_roll = new Image
		btn_publicbuildings_roll.src = "images/btn_publicbuildings_over.gif"
	var btn_lifecareer_roll = new Image
		btn_lifecareer_roll.src = "images/btn_lifecareer_over.gif"
	var btn_resclients_roll = new Image
		btn_resclients_roll.src = "images/btn_resclients_over.gif"
	var btn_designshimself_roll = new Image
		btn_designshimself_roll.src = "images/btn_designshimself_over.gif"
	var btn_designshimself2_roll = new Image
		btn_designshimself2_roll.src = "images/btn_designshimself2_over.gif"
	var btn_resclients2_roll = new Image
		btn_resclients2_roll.src = "images/btn_resclients2_over.gif"
	var btn_taliesin_roll = new Image
		btn_taliesin_roll.src = "images/btn_taliesin_over.gif"
	var btn_taliesinwest_roll = new Image
		btn_taliesinwest_roll.src = "images/btn_taliesinwest_over.gif"
	var btn_hannahouse_roll = new Image
		btn_hannahouse_roll.src = "images/btn_hannahouse_over.gif"
	var btn_ennishouse_roll = new Image
		btn_ennishouse_roll.src = "images/btn_ennishouse_over.gif"
	var btn_averycoonley_roll = new Image
		btn_averycoonley_roll.src = "images/btn_averycoonley_over.gif"
	var btn_oakpark_roll = new Image
		btn_oakpark_roll.src = "images/btn_oakpark_over.gif"
	var btn_fallingwater_roll = new Image
		btn_fallingwater_roll.src = "images/btn_fallingwater_over.gif"
	var btn_imperial_roll = new Image
		btn_imperial_roll.src = "images/btn_imperial_over.gif"
	var btn_guggenheim_roll = new Image
		btn_guggenheim_roll.src = "images/btn_guggenheim_over.gif"
	var btn_unity_roll = new Image
		btn_unity_roll.src = "images/btn_unity_over.gif"
	var btn_annunciation_roll = new Image
		btn_annunciation_roll.src = "images/btn_annunciation_over.gif"
	var btn_previouspage_roll = new Image
		btn_previouspage_roll.src = "images/btn_previouspage_over.gif"
	}
}

function changeImages(sName,sImage)
	{
	if (document.images)
		{
		document.images[sName].src = sImage
		}
	}

function openWindow(theURL,winName,features)
	{
	window.open(theURL,winName,features).focus();
	}

function closeWindow()
	{
	window.close();
	}

if (document.layers)
	{
	origWidth = innerWidth;
	origHeight = innerHeight;
	}
function reloadPage()
	{
	if (innerWidth != origWidth || innerHeight != origHeight)
	location.reload();
	}
if (document.layers)
	onresize=reloadPage;
	
function goHistory()
	{
	window.history.go(-1);
	}