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XML Gets Into Action (Sheets)Part 2

by Nate Zelnick Essentially, both Microsoft's Behaviors proposal and Netscape's Cascading Action Sheets are ways to turn scripted functions into programmatic components. This maps very nicely into the same conceptual framework implied by HTML/XML and Cascading Style Sheets/eXtensible Style Language. Both approaches are similar at a high level and build on work that each company did in the past. Microsoft's Behaviors are the natural outgrowth of the Scriptlet technology that it introduced in IE4. Netscape's Action Sheets are a bit more of a departure from its previous work, but the proposal grows organically out of the JavaScript component work that was part of LiveWire. First let's deal with the similarities. Both technologies are ways of packaging script in a generic way so that it can be reused without change in different contexts. Both approaches use XML to define the interfaces that the component will expose to handle calls from a document based on an event. Of course, the details vary considerably.


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