// rollover for 1st level 

function preload() {
if(document.images) {
  
 var linksoff = new Image();    //all links off
 var topoff = new Image();
 var filmoff = new Image();  
 var filmon = new Image();
 var filmtop = new Image();
 var specfeaton = new Image();
 var specfeattop = new Image();
 var mapson = new Image();
 var mapstop = new Image();
 var peopleon = new Image();
 var peopletop = new Image();
 var teachon = new Image();
 var teachtop = new Image();
 var kidshomeoff = new Image();
 var kidson = new Image();
 var homeon = new Image(); 
 var featureon = new Image(); 
 var featureoff = new Image(); 
 
  
 linksoff.src = "../subimages/links_off.gif";
 topoff.src = "../subimages/top_off.jpg";
 
 filmoff.src = "../subimages/film_off.gif";  
 filmon.src = "../subimages/film_on.gif";
 filmtop.src = "../subimages/film_top.jpg";
 specfeaton.src = "../subimages/specfeat_on.gif";
 specfeattop.src = "../subimages/specfeat_top.jpg";
 mapson.src = "../subimages/maps_on.gif";
 mapstop.src = "../subimages/maps_top.jpg";
 peopleon.src = "../subimages/people_on.gif";
 peopletop.src = "../subimages/people_top.jpg";
 teachon.src = "../subimages/teach_on.gif";
 teachtop.src = "../subimages/teach_top.jpg";
 kidshomeoff.src = "../subimages/k_h_off.gif";
 kidson.src = "../subimages/kids_on.gif";
 homeon.src = "../subimages/home_on.gif";
 featureon.src = "../subimages/logo_on.jpg";
 featureoff.src = "../subimages/logo.gif"; 
}
}

var thisid = setTimeout("resethighlight(thispage)",10000);

function show(msg) { window.status = msg; }

function unshow() { window.status = ''; }

function onoroff(imgName, thatimage) {
	var objStr,obj, imgRurl;
	if(document.images) {
	  objStr = 'document.' + imgName;
      obj = eval(objStr);
      imgRurl = '../subimages/' + thatimage;
      obj.src = imgRurl;
	}
}


function offmenu(switchthisiamge, imgName) {
	if(document.images) {
      offT();
	}
}


function offfilm(switchthisiamge, imgName) {
	var objStr,obj, imgRurl;
	if(document.images) {
	  objStr = 'document.' + switchthisiamge;
      obj = eval(objStr);
      imgRurl = '../subimages/' + imgName + '_off.gif';
      obj.src = imgRurl;
      offT();
	}
}

function onfilm(switchthisiamge, imgName) {
	clearTimeout(thisid);
	var objStr,obj, imgRurl, imgTurl, img0url;
	if(document.images) {
	  objStr = 'document.' + switchthisiamge;
      obj = eval(objStr);
      imgRurl = '../subimages/' + imgName + '_on.gif';
      imgTurl = '../subimages/' + imgName + '_top.jpg';
      imgOurl = '../subimages/' + 'links_off.gif';
      obj.src = imgRurl;
      document.descrip.src = imgTurl;
      document.linksmenu.src = imgOurl;
	}
}

function onmenu(switchthisiamge, imgName) {
	clearTimeout(thisid);
	var objStr,obj, imgRurl;
	if(document.images) {
	  objStr = 'document.' + switchthisiamge;
      obj = eval(objStr);
      imgRurl = '../subimages/' + imgName + '_on.gif';
      imgTurl = '../subimages/' + imgName + '_top.jpg';
      obj.src = imgRurl;
      document.descrip.src = imgTurl;
	}
}

//stops flashing 

function offT() {
 thisid = setTimeout("resethighlight(thispage)",10);
 }
 
function resethighlight(imgnamealso) {
	var imgRurl, imgTurl;
	if(document.images) {
	imgRurl = '../subimages/' + imgnamealso + '_on.gif';
	imgTurl = '../subimages/top_off.jpg';
 	document.linksmenu.src = imgRurl;
 	document.descrip.src = imgTurl;
 	}
}