A11y | Is keyboard navigation

isKB.js

//  Change display attributes if the page is being navigated via kb
//  I think this was an IEFE back in the day
//  Useage: 
/*
body:not([data-is-kb]) .h-vs__hidden,
body[data-is-kb="false"] .h-vs__hidden{ visibility: hidden; }
*/

        "isKeyb": function( _bMode ){ // User navigation mode state
            if( typeof _bMode !== "undefined" ){
                if(_bKeyb !== _bMode){
                    _bKeyb = _bMode;
                    document.body.dataset.isKb = _bKeyb;
                }
            }
            return _bKeyb;
        }

    window.addEventListener("click", function() {oTopmenu.isKeyb(false)}); // mouse state
    window.addEventListener("keyup", function(e) { if(e.keyCode==9) oTopmenu.isKeyb(true); }); // kb state