
<!-- 
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; 
} 
} 

var state2 = 'none'; 
function showhide2(layer_ref) { 
if (state2 == 'block') { 
state2 = 'none'; 
} 
else { 
state2 = 'block'; 
} 

if (document.all) { //IS IE 4 or 5 (or 6 beta) 
eval( "document.all." + layer_ref + ".style.display = state2"); 
} 
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 = state2; 
} 
} 


var state3 = 'none'; 
function showhide3(layer_ref) { 
if (state3 == 'block') { 
state3 = 'none'; 
} 
else { 
state3 = 'block'; 
} 

if (document.all) { //IS IE 4 or 5 (or 6 beta) 
eval( "document.all." + layer_ref + ".style.display = state3"); 
} 
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 = state3; 
} 
} 

//-->