source: aowow/templates/wowhead/js/Book.js

function Book(D) {
        if (!D.parent || !D.pages || D.pages.length == 0) {
                return
        }
        D.parent = $(D.parent);
        var E,
        A,
        B;
        this.nPages = D.pages.length;
        this.parent = $(D.parent);
        this.parent.className += " book";
        E = ce("div");
        E.className = "header";
        if (this.nPages == 1) {
                E.style.display = "none"
        }
        ns(E);
        B = ce("div");
        B.style.visibility = "hidden";
        B.className = "previous";
        A = ce("a");
        A.appendChild(ct(String.fromCharCode(8249) + LANG.book_previous));
        A.href = "javascript:;";
        A.onclick = this.previous.bind(this);
        B.appendChild(A);
        E.appendChild(B);
        B = ce("div");
        B.style.visibility = "hidden";
        B.className = "next";
        A = ce("a");
        A.appendChild(ct(LANG.book_next + String.fromCharCode(8250)));
        A.href = "javascript:;";
        A.onclick = this.next.bind(this);
        B.appendChild(A);
        E.appendChild(B);
        B = ce("b");
        B.appendChild(ct("1"));
        E.appendChild(B);
        E.appendChild(ct(LANG.book_of));
        B = ce("b");
        B.appendChild(ct(this.nPages));
        E.appendChild(B);
        D.parent.appendChild(E);
        for (var C = 0; C < this.nPages; ++C) {
                E = ce("div");
                E.className = "page";
                E.style.display = "none";
                E.innerHTML = D.pages[C];
                D.parent.appendChild(E)
        }
        this.page = 1;
        this.changePage(D.page || 1)
}
Book.prototype = {
        changePage: function(B) {
                if (B < 1) {
                        B = 1
                } else {
                        if (B > this.nPages) {
                                B = this.nPages
                        }
                }
                var A = this.parent.childNodes;
                A[this.page].style.display = "none";
                A[B].style.display = "";
                this.page = B;
                A = A[0].childNodes;
                A[0].style.visibility = (B == 1) ? "hidden": "visible";
                A[1].style.visibility = (B == this.nPages) ? "hidden": "visible";
                A[2].innerHTML = B
        },
        next: function() {
                this.changePage(this.page + 1)
        },
        previous: function() {
                this.changePage(this.page - 1)
        }
};