(function () {
?var reg = /^[A-Za-z]+$/;
?var isHtml = /<|&#?\w+;/;
?String.prototype.startWith = function () {
??return this.charAt(0);
?};
?String.prototype.content = function () {
??return this.substring(1, this.length);
?};
?this.$ = jQuery = function (selected) {
??return new jQuery.fn.init(selected);
?};
?jQuery.fn = jQuery.prototype = {init:function (selected, context) {
??selected = this.trim(selected);
??if (selected.nodeType) {
???this.length = 1;
???return this;
??}
??if (typeof selected === "string") {
???if (selected.startWith() === "#") {
????this.length = 1;
????this[0] = document.getElementById(selected.content());
????this.selected = selected;
????return this;
???}
???if (selected.startWith() === ".") {
????var l = this.getTagName("*").length;
????var e = this.getTagName("*");
????var es = [];
????for (var i = 0; i < l; i++) {
?????if (e[i].className == selected.content()) {
??????es.push(e[i]);
?????}
????}
????for (var j = 0; j < l; j++) {
?????this[j] = es[j];
????}
????this.length = es.length;
????return this;