// JavaScript Document
var changCat=function(){
var  url=location.href;

	if(url.indexOf("instruments")>0){
		document.getElementById("audio-video-cat").style.display="none";
	}
	if(url.indexOf("audio-video")>0){
		document.getElementById("instruments-cat").style.display="none";
	}
}
window.onload=changCat;