Basic HTML version of Foils prepared April 4 1999

Foil 37 DHTML 1) Define Layers -- II

From The Document Object Model - Universal Access - Other Objects - CORBA XML Jini JavaScript etc. Tango Seminar to DoD Modernization MSRC -- April 6 1999. by Geoffrey C. Fox
NPAC Dynamic HTML Examples
1 The position CSSP attribute takes values static (default) relative (position relative to where it "should be" in current "context") and absolute (position in current "context")
2 These are properties of essentially ALL document components in the "DOM of our dreams" (this is what W3C defines)
  • However in today's pragmatic world, one can only use for some HTML tags
  • <DIV> and <SPAN> (<<---- USE THESE!) are supported today by Microsoft and Netscape and are part of HTML4
  • <LAYER> is best "name" (so lets call them layers)and fully supported by Netscape; it is not part of HTML4 and not officially supported by Microsoft
  • <IFRAME> (internal frame) is not in Netscape4 but is in HTML4 and supported by Microsoft
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