// JavaScript Document
//Contains suite of functions used throughout site

var currentImgNumber = 1;
var numberOfImages = 3;
function window_onload()
{
   setTimeout("switchImage()",3000);
}
function switchImage()
{
   currentImgNumber++;
   document.imgAdvert.src = "images/AdvertImage" + currentImgNumber + ".jpg";
   if (currentImgNumber < numberOfImages)
   {
      setTimeout("switchImage()",3000);   }
   }
   
   
var W3CDOM = (document.createElement && document.getElementsByTagName);

var mouseOvers = new Array();
var mouseOuts = new Array();


//Init function is used by bottom nav bar mouseover buttons back, top and email webmaster.
//It is called in the mainnvbr.js script

function init()
{
	if (!W3CDOM) return;
	var nav = document.getElementById('mouseovers');
	var imgs = nav.getElementsByTagName('img');
	for (var i=0;i<imgs.length;i++)
	{
		imgs[i].onmouseover = mouseGoesOver;
		imgs[i].onmouseout = mouseGoesOut;
		var suffix = imgs[i].src.substring(imgs[i].src.lastIndexOf('.'));
		mouseOuts[i] = new Image();
		mouseOuts[i].src = imgs[i].src;
		mouseOvers[i] = new Image();
		mouseOvers[i].src = imgs[i].src.substring(0,imgs[i].src.lastIndexOf('.')) + "_over" + suffix;
		imgs[i].number = i;
	}
}

function mouseGoesOver()
{
	this.src = mouseOvers[this.number].src;
}

function mouseGoesOut()
{
	this.src = mouseOuts[this.number].src;
}

 function openModel2() {

      window.open("anim_surge_01.html","Model","width=230,height=450");

}

function spawn(expr,qty,reversed){
var spawnee=[expr];
for(s=1;s<qty;s++){
spawnee[s]=expr+spawnee[s-1];
}
return reversed? spawnee.reverse() : spawnee();
}

function mw_crumbs(divider,default_page,root){
if(!divider) {divider=" > "}
if(!default_page){default_page="index.html"}
var m=location.toString(),h="";
m=m.substring(m.indexOf("/")+1);
m=m.split("/");
var howmany=spawn("../",m.length,true);
howmany[m.length]=default_page;
for(i=1;i<m.length-1;i++){
h+=("<a href="+howmany[i+2]+">"+unescape( m[i]+"</a>"+divider))
}
h += document.title;
if(root) {
h=h.replace(eval("/"+location.host+"/"),root)
}
return h
}