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');
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;
}
}
function file_name_only(str) { 
var slash = '/';
if (str.match(/\\/)) { 
      slash = '\\';
} 
sURL = str.substring(str.lastIndexOf(slash) + 1, str.lastIndexOf('.'));
if (sURL.indexOf('_')>-1){sURL=sURL.slice(0,sURL.indexOf('_'));}
if ((sURL == 'capstone') && (document.getElementById('copingheader').innerHTML == 'Deck Mount')){
	sURL='deckmount'; }
if (sURL == 'acc'){
	sURL='accessories'; }
//if((sURL=='capstone')||(sURL=='deckmount')||(sURL=='horizontal')||(sURL=='vertical')){showhide(sURL);}
if (document.getElementById(sURL) != null){showhide(sURL);}
}