//Main Navigation
// Create image objects and preload all active and inactive images
if (document.images) { 
    // Six image objects for the active images
    var img1on = new Image();   
    img1on.src = "images/nav/main_hov.gif"; 
    var img2on = new Image();         
    img2on.src = "images/nav/gallery_hov.gif";
    var img3on = new Image();
    img3on.src = "images/nav/process_hov.gif";
    var img4on = new Image();
    img4on.src = "images/nav/tools_hov.gif";
    var img5on = new Image();
    img5on.src = "images/nav/about_hov.gif";
	var img6on = new Image();
	img6on.src = "images/nav/toolsx_hov.gif"
    
    // Six image objects for the inactive images
    var img1off = new Image();         
    img1off.src = "images/nav/main_norm.gif";
    var img2off = new Image();         
    img2off.src = "images/nav/gallery_norm.gif";
    var img3off = new Image();
    img3off.src = "images/nav/process_norm.gif";
    var img4off = new Image();
    img4off.src = "images/nav/tools_norm.gif";
    var img5off = new Image();
    img5off.src = "images/nav/about_norm.gif";
    var img6off = new Image();
    img6off.src = "images/nav/toolsx_norm.gif";
}

// Function to activate an image
function imgon(imgName) {
    if (document.images) {
        document.images[imgName].src = eval(imgName + "on.src");
    }
}

// Function to deactivate an image
function imgoff(imgName) {          
    if (document.images) {
        document.images[imgName].src = eval(imgName + "off.src");
    }
}

//>>>>>><<<<<<<<<


/*Larger image javascript used on Process page */
/***********************************************
* Image Thumbnail viewer- © Dynamic Drive (www.dynamicdrive.com)
* Last updated Sept 26th, 03'. This notice must stay intact for use
* Visit http://www.dynamicdrive.com/ for full source code
***********************************************/



var ie=document.all
var ns6=document.getElementById&&!document.all

function ietruebody(){
return (document.compatMode && document.compatMode!="BackCompat" && !window.opera)? document.documentElement : document.body
}

function enlarge(which, e, position, imgwidth, imgheight){
if (ie||ns6){
crossobj=document.getElementById? document.getElementById("showimage") : document.all.showimage
if (position=="center"){
pgyoffset=ns6? parseInt(pageYOffset) : parseInt(ietruebody().scrollTop)
horzpos=ns6? pageXOffset+window.innerWidth/2-imgwidth/2 : ietruebody().scrollLeft+ietruebody().clientWidth/2-imgwidth/2
vertpos=ns6? pgyoffset+window.innerHeight/2-imgheight/2 : pgyoffset+ietruebody().clientHeight/2-imgheight/2
if (window.opera && window.innerHeight) //compensate for Opera toolbar
vertpos=pgyoffset+window.innerHeight/2-imgheight/2
vertpos=Math.max(pgyoffset, vertpos)
}
else{
var horzpos=ns6? pageXOffset+e.clientX : ietruebody().scrollLeft+event.clientX
var vertpos=ns6? pageYOffset+e.clientY : ietruebody().scrollTop+event.clientY
}
crossobj.style.left=horzpos+"px"
crossobj.style.top=vertpos+"px"

crossobj.innerHTML='<div align="right" id="dragbar"><span id="closetext" onClick="closepreview()">&nbsp;X &nbsp;Close&nbsp;</span> </div><img src="'+which+'">'
crossobj.style.visibility="visible"
return false
}
else //if NOT IE 4+ or NS 6+, simply display image in full browser window
return true
}

function closepreview(){
crossobj.style.visibility="hidden"
}

function drag_drop(e){
if (ie&&dragapproved){
crossobj.style.left=tempx+event.clientX-offsetx+"px"
crossobj.style.top=tempy+event.clientY-offsety+"px"
}
else if (ns6&&dragapproved){
crossobj.style.left=tempx+e.clientX-offsetx+"px"
crossobj.style.top=tempy+e.clientY-offsety+"px"
}
return false
}

function initializedrag(e){
if (ie&&event.srcElement.id=="dragbar"||ns6&&e.target.id=="dragbar"){
offsetx=ie? event.clientX : e.clientX
offsety=ie? event.clientY : e.clientY

tempx=parseInt(crossobj.style.left)
tempy=parseInt(crossobj.style.top)

dragapproved=true
document.onmousemove=drag_drop
}
}

document.onmousedown=initializedrag
document.onmouseup=new Function("dragapproved=false")

/*======================================================= */

/* main page image swap */
/*
This code is from Dynamic Web Coding 
at http://www.dyn-web.com/
See Terms of Use at http://www.dyn-web.com/bus/terms.html
Permission granted to use this code 
as long as this entire notice is included.
*/

// put images to preload in this array
var preload_list = new Array("blank.gif","hot_cast.jpg","kiln_cast.jpg", "kiln_form.jpg");
var path_to_images = "images/main/";

// preload (change path to images if necessary)
if (document.images) {
	var image_list = new Array();
	for (var preload_counter=0; preload_counter<preload_list.length; preload_counter++) {
  	image_list[preload_counter] = new Image(); 
		image_list[preload_counter].src = path_to_images + preload_list[preload_counter];	
  }
}

var swapTimer;
// delay before restoring original image onmouseout
var restore_delay = 800; // milliseconds
function swapImage(num) {
	if (swapTimer) clearTimeout(swapTimer);
	if (document.images) {
		document.swap.src = image_list[num].src;
	}
}

function restoreImg() {
	swapTimer = setTimeout("swapImage("+0+")",restore_delay);
}