1) Create a traffic light having three small square text boxes substituted vertically on the form initially, bottom text box is solid green and other text boxes are dark gray.

Whenever the tab key is pressed, middle text box becomes yellow and bottom text box becomes dark gray.
Next time when the tab is pressed, top text box becomes red and middle text box becomes dark gray.
Successive pressing of the tab key cycles through three colors. A form consists of two text boxes and one large label between them having no preset caption when first text box accepts the focus , label reads “enter your full name “ When second text box receives the focus, label reads” enter your Phone number, involving the area code” .