1$('#selector').selectmenu();

1$("*")                      // all elements
2$("p.demo")                 // <p> elements with class="intro"
3$("p:first")                // the first <p> element
4$("p span")                 // span, descendant of p
5$("p > span")               // span, direct child of p
6$("p + span")               // span immediately proceeded by a p
7$("p ~ span")               // strong element proceeded by p
8$("ul li:first")            // the first <li> element of the first <ul>
9$("ul li:first-child")      // the first <li> element of every <ul>
10$("ul li:nth-child(3)")     // third child
11$("[href]")                 // any element with an href attribute
12$("a[target='_blank']")     // <a> elements with a target "_blank" attribute
13$("a[target!='_blank']")    // <a> elements with a target attribute value other than "_blank"
14$(":input")                 // all form elements
15$(":button")                // <button> and <input> elements of type="button"
16$("tr:even")                // even <tr> elements
17$("tr:odd")                 // odd <tr> elements
18$("span:parent")            // element which has child element
19$("span:contains('demo')")  // element conaining the specified text
20