JS

var currentContext = 0;

    // true = create, false = remove
    function switchMenu(mode) {

        if (!mode) {
            switch (currentContext) {
                case 0:
                    $('#article').css({
                        "display": "none"
                    })
                    break;
                case 1:
                    $('#map').css({
                        "display": "none"
                    })
                    break;
                // case 2, etc...
            }
        } else {
            switch (currentContext) {
                case 0:
                    $('#article').css({
                        "display": "block"
                    })
                    break;
                case 1:
                    $('#map').css({
                        "display": "block"
                    })
                    break;
                // case 2, etc...
            }
        }
    }

if ($(target).parents('#tag-1').length) {

    switchMenu(false);
    currentContext = 0;
    switchMenu(true);

} else if ($(target).parents('#tag-2').length) {

    switchMenu(false);
    currentContext = 1;
    switchMenu(true);

}
    // else if ...