void DoMaxD(int sock, PCSTR url);	/* Maximum display value */
void DoMinD(int sock, PCSTR url);	/* Minimum display value */
void DoMaxT(int sock, PCSTR url);	/* Right end of the graph */
void DoMinT(int sock, PCSTR url);	/* Left end of the graph */
void DoSize(int sock, PCSTR url);	/* Graph size selection combo */ 
void DoShowStatus(int sock, PCSTR url);
					/* The status table on bottom */
void GetImageKey(int sock, PCSTR url);
					/* The gif image URL */

Listing 2—These data-rendering function calls are selected from comments in the HTML code. 
 They are used to render dynamic values in the web page.