Level A — Web Client Details

See Also

The Web client for Island Hopper News level A is implemented in a series of Active Server Pages (.asp) files. The following picture shows how the .asp files in the Web client are related.

File Reference

The following table lists the main files in the Web client by name and purpose.

File name Purpose

AdConfirm.asp

 Called by AdEntry.asp after you submit the ad form. This page checks the input on AdEntry.asp, updates user data, and inserts the ad into the database.

AdDisplay.asp

 Displayed when you click Browse an Ad on the Browse/Place an Ad page. On this page, you can click to select an ad category. After you select an ad category, the page calls AdsList.asp to get the list of ads for the category from the database and display the titles of the ads. You can click on an ad title to display the ad. You can click Place an Ad if you want to place an ad; doing so displays AdEntry.asp.

AdEntry.asp

 Displayed when you click Place an Ad on the Browse/Place an Ad page. On this page, you can provide information about your ad using a form. You can click Preview to see what your ad will look like, and click Clear to clear the fields in the form. Clicking Preview displays AdConfirm.asp.

AdsList.asp

 Called by AdDisplay.asp after you select a category to populate the list of ads in that category.

Browse.asp

 Displayed when you click Classified Ads on the Island Hopper Headlines page. From here, you can browse or place an ad. Clicking Browse an Ad displays AdDisplay.asp; clicking Place an Ad displays AdEntry.asp.

browserCheck.vbs

 Called by each .asp file to check the Internet Explorer version. If the browser version is not Internet Explorer 4.0, calls getMSIE4.htm, which displays a message advising you to upgrade your browser.

Code.asp

 Called by ViewSource.js to display the source code for a particular page. Code.asp in turn calls CodeBrws.asp.

CodeBrws.asp

 Called by Code.asp to format and display a page of source code.

Default.htm

 Loads Headlines.asp.

getMSIE4.htm

 Displayed if the browser version is not Internet Explorer 4.0.

Headlines.asp

 Main screen of the Web client. Shows the front page of Island Hopper News. From here, you can click on Classified Ads to go to the Classified Ads application (Browse.asp); all other links redisplay this page.

NavigationBar.js

 Displays the navigation bar at the bottom of all pages.

strFile.vbs

 Contains all text strings for the Web version of the application.

ViewSource.js

 Displays the View Source button on pages.

File Flow

The following picture shows the flow of the pages in the Web client.

  1. When you start the Web client, the Default.htm page loads and immediately calls Headlines.asp.

  2. From Headlines.asp, you go to Browse.asp if you click the Classified Ads link. All other links redisplay Headlines.asp.

  3. Browse.asp is the main page for the Classified Ads application. This is where you choose whether to browse or place an ad. Processing for each of these choices is shown in the following table:
    If you choose... Browse.asp calls...
    Browse an Ad AdDisplay.asp
    Place an Ad AdEntry.asp

    AdDisplay.asp calls AdsList.asp after you select a category in the Categories list. AdEntry.asp calls AdConfirm.asp after you preview your ad and click Submit.