trigger(type , data )
<html> <head> <script type="text/javascript" src="js/jquery-1.3.2.js"></script> <script type="text/javascript"> $(document).ready(function(){ $("button:first").click(function () { update($("span:first")); }); $("button:last").click(function () { $("button:first").trigger('click'); update($("span:last")); }); function update(j) { var n = parseInt(j.text(), 0); j.text(n + 1); } }); </script> </head> <body> <body> <button>1</button> <button>2</button> <span>0</span> / <span>0</span> </body> </html>