Chapter 11, Problem 6CP1

a)

Program Plan Intro

To create a function lightStars() and declaring a starNumber variable, to store the value of alt attribute of the target of the event object.

b)

Program Plan Intro

To declare the star variable in the function lightStars() and this variable will contain the collection of object referenced by the span#starsimg.

c)

Program Plan Intro

To declare the loop for the star collection with index range starts form 0 and will iterate for all the value which are less than the starNumber and adding image bw_star2.png to light the stars of the collection.

d)

Program Plan Intro

To declare another loop for the star collection with index range starts form starNumeber and will iterate for all the value which are less than 5 and un-lighting all the stars by the adding the image bw_star.png to the stars of the collection.

e)

Program Plan Intro

To change the value of input box with id attribute “rating” to starNumber, here starNumber value is the value of starNumber variable.

f)

Program Plan Intro

To add the mouse leave event in the lightStars() function, to unlit all the lit stars when the mouse pointer moves off.

g)

Program Plan Intro

To set the rating clicked by the userand adding an event listener to remove the turnOffStars() function.