<html> <head> <script type="text/javascript" src="js/jquery-1.3.2.js"></script> <script type="text/javascript"> $(document).ready(function(){ $("div").one("click", function(){ alert("clicked."); }); }); </script> <style> div { width:50px; height:70px; float:left; margin:5px; background:rgb(255,140,0); cursor:pointer; } </style> </head> <body> <body> <div>asdf</div> </body> </html>