4.1. Introducing Atlas Client ControlsAtlas implements its client controls in the Sys.UI namespace. Sys.UI is the client-side equivalent of the similarly named and well-known Web.UI namespace in ASP.NET.
Sys.UI contains a large number of Atlas HTML controls and web controls. The functionality of Atlas controls is similar but not identical to ASP.NET server controls. Atlas controls provide a consistent, browser-independent model that enables JavaScript code to access and change client controls properties, something that with non-Atlas controls would require quite a bit of JavaScript knowledge as well as some workarounds for browser inconsistencies. Table 4-1 lists controls provided by Atlas. The table lists the HTML elements that the Atlas control works with and the equivalent DOM object or method that you would use in JavaScript.
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