In order to effectively and safely use our site, you must have the following browsers and plug-ins installed. Check the versions of the software programs you currently use and download the appropriate version if necessary. Recommended operating systems and browsers

Microsoft Internet Explorer 7.0 or later Mozilla Firefox 3.6 or later

Safari Mozilla Firefox 3.6 or later Download Microsoft Internet Explorer hereOpen link in new window Download Mozilla Firefox hereOpen link in new window

Some information on our site is provided in PDF format or as a Flash movie.

Adobe Reader is required to read PDF files. You can download the latest version of Adobe Reader from the Adobe web site.Open link in new window

Flash Player is required to view Flash movies. You can download the latest version of Flash Player from the Adobe web site.Open link in new window

Some of the contents on our site use JavaScript. Some features may not function or display properly if you have turned off JavaScript on your browser. We recommend that you turn on JavaScript on your browser to use all features on our site.

Our web site uses style sheets. The site may not display properly if you have turned off the style sheet setting in your browser. We recommend that you turn on the style sheet setting so that you can access all the contents of our site.

Our web site may issue cookies to provide better content and enhanced user experience to visitors of our site. Cookies are small data files that our web site copies onto your hard drive, and are used to recognize pages that visitors visit on our site. Cookies are used strictly for enhancing the web experience of visitors to our site, and will not be used to collect identification information of a visitor without the visitor's consent. You can configure your browser to refuse cookies, or alert you when a web site tries to issue a cookie; however, this may make your visit to our site less convenient.