<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=utf-8" /> <title>Example</title> <script type="text/JavaScript"> window.onload = function() { if (!document.getElementsByTagName) return false; var lnks = document.getElementsByTagName("a"); for (var i=0; i<lnks.length; i++) { if (lnks[i].getAttribute("class") == "popup") { lnks[i].onclick = function() { popUp(this.getAttribute("href")); return false; } } } } function popUp(winURL) { window.open(winURL,"popup","width=320,height=480"); } </script> </head> <body> <a href="http://www.example.com/" class="popup">Example</a> </body> </html>