This section will examine the California Highway Patrol Incident page. A user can choose the area they are interested in, and the page will retrieve incidents for that area. We want to let users request traffic reports for the same areas, so we need to examine how this page creates content.
We will do this by dissecting the general HTML structure of the Incident Page. The Incident Page is located at http://cad.chp.ca.gov.
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This page is divided into three frames. The bottom frame is just an informational and legal footer. There is a top frame that holds some navigation. The pull-down menu in the upper left corner labelled Areas lists the urban centres of California. The traffic incident content is in the middle frame. This data appears to be displayed in a table. There are columns for the time of the incident, type of incident, location, and the general neighborhood. When the areas pull-down is activated and a new area is selected, the content page refreshes...