Designers most often use ____ to provide structure for the layout of Web pages.

Call-by-reference can achieve the security of call-by-value when:

a. The value being passed is small. b. A large argument is passed in order to improve performance. c. A pointer to the argument is used. d. The const qualifier is used.

Which of the following statements is true about theevt.screenXmouse event?

A. It returns the horizontal coordinate (in pixels) of the mouse pointer relative to the browser window. B. It returns the horizontal coordinate (in pixels) of the mouse pointer relative tothe physical screen. C. It returns the horizontal coordinate (in pixels) of the secondary target of the event. D. It returns the horizontal coordinate (in pixels) of the last mouse click relative to the screen