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Things you can do with SCRIPTS and Applets Add a search feature Provide password protection Add message boards and chat rooms Add timekeeping tools such as clocks and calendars Ease site exploration by providing visitors with graphical or hierarchical navigation tools Link to live information such as news feeds. Scripts and Applets Scripts and applets are programs. Some programs are hooked up to your Web pages by using the Common Gateway Interface (CGI). Java applets are tiny application written in the Java programming language. Scripts are short programs written in the JavaScript programming language. JavaScript was designed solely for writing programs for the Web. CGI Access CGI access means that you can run programs on your Web server that use the CGI. These programs are usually kept in a subfolder called cgi-bin. • Finding a CGI provider Go to www.freewebspace.net and click Advanced Free Hosting Search link. In the search form, click the CGI check box under Features and click the Search button. • Using remotely hosted CGI scripts www.fido7.com/free-cgi/ Adding CGI Scripts Read the instructions for the script • The instructions are in readme.txt file or embedded in the text of the script in the form of comments Open the script file in a text editor and make any necessary changes Add the HTML code that the script’s instructions say to add to your Web page Upload the script and the modified HTML file to your Web server JavaScripts The script has to go in the head element of your Web page. An example of whatever script: <head> <script language = “JavaScript”> function whatever () { actual code is found here } </head> JavaScript – The Trigger Add to your Web page something to trigger the script, which causes it to run. For a script that executes as soon as the Web page loads into the browser, use the onload attribute of the body element: <body onload = “whatever()”> For a script where you want the visitor to click an element, use the onclick attribute <a onclick = “whatever()”>Click here for whatever</a> Online Sources for Scripts www.cgi-resources.com An intro to CGI • www.mattkruse.com/info/cgi/ JavaScript Kit • www.javascriptkit.com