This site uses JavaScript and cookies, and turning them off in your browser may cause the site not to function properly. But just what are "JavaScript" and "cookies," and why do we use them?

JavaScript is a computer programming language that runs within your web browser to make certain interactive elements on web pages work. Whenever you perform an action such as changing a menu option or clicking on a checkbox, and that action causes some kind of immediate result, like a change in text or an image somewhere else on the page, that's JavaScript at work. Some sites use JavaScript for undesirable behaviors like opening "pop-up" advertisements, and as a result, some users choose to turn off JavaScript in their web browsers.

Our site does not display advertising of any kind (pop-up or otherwise), nor do we use JavaScript for any reason other than for necessary functionality of the site.

Note: Web browser preference tools often change from version to version, and those in your particular web browser version may not exactly match what is described here.

1. Open the Tools menu and select Internet Options...
2. Select the Security tab, and, with the Internet zone selected, set the security level slider bar to Medium (or use the Custom Level... button for advanced settings).
3. Click OK to return to the browser.

1. Open the Safari menu and select Preferences...
2. Click the Security icon.
3. Check the Enable JavaScript box under Web Content.
4. Click the red dot in the upper left corner to return to the browser.

1. On Windows, open the Tools menu and select Options... On Mac OS X, open the Firefox menu and select Preferences...
2. Click the Web Features icon.
3. Check the Enable JavaScript box.
4. Click OK to return to the browser.

1. On Windows, open the Edit menu and select Preferences... On Mac OS X, open the Netscape menu and select Preferences...
2. In the left column, expand Advanced and select the Scripts & Plugins item.
3. Check the Navigator box under Enable JavaScript for.
4. Click OK to return to the browser.

Cookies are small pieces of data stored on your hard drive by your web browser that allow you to carry over information from one web page to the next, and to save information between visits to a website. Our site uses a "session ID" cookie to allow you to work with information on our server as you move from page to page. This session ID is erased when you close your web browser. If you choose to save your username and password so you do not need to log in each time you visit the site, our site also uses a special cookie that remains stored on your hard drive between sessions, containing an encoded login ID.

The cookies on our site cannot access any personal information you do not intentionally provide to us through this site, and they cannot install undesirable software on your computer.

Note: Web browser preference tools often change from version to version, and those in your particular web browser version may not exactly match what is described here.

1. Open the Tools menu and select Internet Options...
2. Select the Privacy tab, and set the slider bar to Medium (or use the Advanced... button for advanced settings).
3. Click OK to return to the browser.

1. Open the Safari menu and select Preferences...
2. Click the Security icon.
3. Select either the Always or the Only from sites you navigate to button under Accept Cookies. (We recommend choosing the Only from sites you navigate to option.)
4. Click the red dot in the upper left corner to return to the browser.

1. On Windows, open the Tools menu and select Options... On Mac OS X, open the Firefox menu and select Preferences...
2. Click the Privacy icon.
3. Expand the Cookies section.
4. Check the Allow sites to set cookies box and, optionally, the for the originating website only box. (We recommend choosing the for the originating website only option.)
5. Click OK to return to the browser.

1. While on this site, open the Tools menu, expand the Cookie Manager option, and select Unblock Cookies from this Site. You can also select Manage Stored Cookies for advanced settings.