imag = new Array ()
imag[0] = "images/b01-01.png"
imag[1] = "images/b01-02.png"
imag[2] = "images/b02-01.png"
imag[3] = "images/b02-02.png"
imag[4] = "images/b03-01.png"
imag[5] = "images/b03-02.png"
imag[6] = "images/b04-01.png"
imag[7] = "images/b04-02.png"
imag[8] = "images/b05-01.png"
imag[9] = "images/b05-02.png"
imag[10] = "images/b06-01.png"
imag[11] = "images/b06-02.png"
imag[12] = "images/b07-01.png"
imag[13] = "images/b07-02.png"
imag[14] = "images/b08-01.png"
imag[15] = "images/b08-02.png"

function swtch(num, imgname, blurb) 
{
window.status = blurb;
imgname.src = is[num].src
}

is = new Array()
for (var d = 0; d < imag.length; d++)
{
is[d] = new Image ()
is[d].src = imag[d]
}

var state = 'none';

function showhide(layer_ref) {

if (state == 'block') { 
state = 'none'; 
} 
else { 
state = 'block'; 
} 
if (document.all) { //IS IE 4 or 5 (or 6 beta) 
eval( "document.all." + layer_ref + ".style.display = state"); 
} 
if (document.layers) { //IS NETSCAPE 4 or below 
document.layers[layer_ref].display = state; 
} 
if (document.getElementById &&!document.all) { 
hza = document.getElementById(layer_ref); 
hza.style.display = state; 
} 
}