+ * End the most recent 'destructive' operation, reverting the list of matched elements
+ * back to its previous state. After an end operation, the list of matched elements will
+ * revert to the last state of matched elements.
+ *
+ * @example $("p").find("span").end();
+ * @before <p><span>Hello</span>, how are you?</p>
+ * @result $("p").find("span").end() == [ <p>...</p> ]
+ *
+ * @name end
+ * @type jQuery
+ */
+ end: function() {
+ return this.get( this.stack.pop() );
+ },
+
+ /**
+ * Searches for all elements that match the specified expression.
+ * This method is the optimal way of finding additional descendant
+ * elements with which to process.
+ *
+ * All searching is done using a jQuery expression. The expression can be
+ * written using CSS 1-3 Selector syntax, or basic XPath.
+ *
+ * @example $("p").find("span");
+ * @before <p><span>Hello</span>, how are you?</p>
+ * @result $("p").find("span") == [ <span>Hello</span> ]
+ *
+ * @name find
+ * @type jQuery
+ * @param String expr An expression to search with.
+ */
+ find: function(t) {
+ return this.pushStack( jQuery.map( this, function(a){
+ return jQuery.find(t,a);
+ }), arguments );
+ },
+
+ /**
+ * Removes all elements from the set of matched elements that do not
+ * match the specified expression. This method is used to narrow down
+ * the results of a search.
+ *
+ * All searching is done using a jQuery expression. The expression
+ * can be written using CSS 1-3 Selector syntax, or basic XPath.
+ *
+ * @example $("p").filter(".selected")
+ * @before <p class="selected">Hello</p><p>How are you?</p>
+ * @result $("p").filter(".selected") == [ <p class="selected">Hello</p> ]
+ *
+ * @name filter
+ * @type jQuery
+ * @param String expr An expression to search with.
+ */
+
+ /**
+ * Removes all elements from the set of matched elements that do not
+ * match at least one of the expressions passed to the function. This
+ * method is used when you want to filter the set of matched elements
+ * through more than one expression.
+ *
+ * Elements will be retained in the jQuery object if they match at
+ * least one of the expressions passed.
+ *
+ * @example $("p").filter([".selected", ":first"])
+ * @before <p>Hello</p><p>Hello Again</p><p class="selected">And Again</p>
+ * @result $("p").filter([".selected", ":first"]) == [ <p>Hello</p>, <p class="selected">And Again</p> ]
+ *
+ * @name filter
+ * @type jQuery
+ * @param Array<String> exprs A set of expressions to evaluate against
+ */
+ filter: function(t) {
+ return this.pushStack(
+ t.constructor == Array &&
+ jQuery.map(this,function(a){
+ for ( var i = 0; i < t.length; i++ )
+ if ( jQuery.filter(t[i],[a]).r.length )
+ return a;
+ }) ||
+
+ t.constructor == Boolean &&
+ ( t ? this.get() : [] ) ||
+
+ t.constructor == Function &&
+ jQuery.grep( this, t ) ||
+
+ jQuery.filter(t,this).r, arguments );
+ },
+
+ /**
+ * Removes the specified Element from the set of matched elements. This
+ * method is used to remove a single Element from a jQuery object.
+ *
+ * @example $("p").not( document.getElementById("selected") )
+ * @before <p>Hello</p><p id="selected">Hello Again</p>
+ * @result [ <p>Hello</p> ]
+ *
+ * @name not
+ * @type jQuery
+ * @param Element el An element to remove from the set
+ */
+
+ /**
+ * Removes elements matching the specified expression from the set
+ * of matched elements. This method is used to remove one or more
+ * elements from a jQuery object.
+ *
+ * @example $("p").not("#selected")
+ * @before <p>Hello</p><p id="selected">Hello Again</p>
+ * @result [ <p>Hello</p> ]
+ *
+ * @name not
+ * @type jQuery
+ * @param String expr An expression with which to remove matching elements
+ */
+ not: function(t) {
+ return this.pushStack( t.constructor == String ?
+ jQuery.filter(t,this,false).r :
+ jQuery.grep(this,function(a){ return a != t; }), arguments );
+ },
+
+ /**
+ * Adds the elements matched by the expression to the jQuery object. This
+ * can be used to concatenate the result sets of two expressions.
+ *
+ * @example $("p").add("span")
+ * @before <p>Hello</p><p><span>Hello Again</span></p>
+ * @result [ <p>Hello</p>, <span>Hello Again</span> ]
+ *
+ * @name add
+ * @type jQuery
+ * @param String expr An expression whose matched elements are added
+ */
+
+ /**
+ * Adds each of the Elements in the array to the set of matched elements.
+ * This is used to add a set of Elements to a jQuery object.
+ *
+ * @example $("p").add([document.getElementById("a"), document.getElementById("b")])
+ * @before <p>Hello</p><p><span id="a">Hello Again</span><span id="b">And Again</span></p>
+ * @result [ <p>Hello</p>, <span id="a">Hello Again</span>, <span id="b">And Again</span> ]
+ *
+ * @name add
+ * @type jQuery
+ * @param Array<Element> els An array of Elements to add
+ */
+
+ /**
+ * Adds a single Element to the set of matched elements. This is used to
+ * add a single Element to a jQuery object.
+ *
+ * @example $("p").add( document.getElementById("a") )
+ * @before <p>Hello</p><p><span id="a">Hello Again</span></p>
+ * @result [ <p>Hello</p>, <span id="a">Hello Again</span> ]
+ *
+ * @name add
+ * @type jQuery
+ * @param Element el An Element to add
+ */
+ add: function(t) {
+ return this.pushStack( jQuery.merge( this, t.constructor == String ?
+ jQuery.find(t) : t.constructor == Array ? t : [t] ), arguments );
+ },
+
+ /**