The keyword search functionality in Commerce Server 2000 Retail Solution Site begins in the page search.asp. Following the standard flow of execution in this solution site, the include file setupenv.asp ends by calling the routine Main, which is the first routine in the page. This function assigns the HTML for the content area of the page to the variable htmPageContent. The include file layout1.asp inserts the contents of this variable into the table cell that corresponds to the content area of the page. For more information about these details of page execution, see the topic "Page Execution Model" in the Solution Sites documentation.