Design and Implementation of Jabber2Go System

For contemporary society it is ever more important to be in permanent contact therefore instant messaging is constantly more used. Object of this thesis is to design and to realize instant messaging client for communication over Jabber system. Client demands of minimal equipment requirements for user of the system. Thesis denotes about general characteristics of instant messaging and more detailed definition of Jabber and Jabber protocol. Thesis gives also attention to analysis of existing Jabber clients, and design and realisation of newly-made client which communicates with user via web browser