According to Elliott and Phillips (2004), WAP or Wireless Application Protocol enables Internet pages and mark-up languages such as WML be viewed in a small screen of mobile devices such as mobile phones. WAP can
also be defined as worldwide standard for the delivery and presentation of wireless information to mobile phones and other wireless devices (Mallick,2003). Taluckder (2006) stressed that WAP was designed to enable the user to access information and knowledge from Internet via mobile phones in a small display and limited keys on the keypad. WAP devices have varieties of interfaces and the output can be displayed as text, formatted text and graphics while input is provided by touch screens or buttons (Frick, 1999).