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Layers![]() ![]() ![]() ![]() ![]()
Layers are not technically a part of JSSS,But first, what is a layer?
A layer is a section of an HTML page that is handled as an independent unit, In layer compatible browsers, each section can be displayed, hidden, moved, or otherwise manipulated independently of other sections. In Netscape, they are delineated on the Web page with the <LAYER>, <DIV>, or <SPAN> tags, while Microsoft supports the <DIV> and <SPAN> implementations. For your examples, you'll be working with <DIV> and <SPAN>. Layers give you a whole new set of tools with which to control the position and visibility of entire segments of a Web page. You can overlap up to 10 layers and then reveal each one in turn to create animation. Or, you can slide layers around for other transition effects. Layers are Netscape's way of positioning HTML elements with style sheets, which is part of a proposed W3C standard. With this little bit of knowledge in hand, begin with a sample example. This page includes a simple layer with no controls <BODY> </LAYER> </BODY> The <LAYER> tag is proprietary to Netscape and is not compatible with any other browser.
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Domain NamesDHTML Document Object Model Features of Dynamic HTML HTML Versus DHTML Netscape's Vision of DHTML Microsoft Vision of DHTML Cascading Style Sheets(CSS) Inline Style Sheets Embedded Style for a Page Linked Cascading Style Sheet Text Specific Style AttributesCSS Attributes Assigning Classes Java Script Style Sheets(JSSS) Object Property Functions Methods
Creating Style Sheets with JSSS New JSSS Methods Working Layers Positioning the Layer Using More than One Layer Moving a Layer Around on the Page Events
The mouseOver and mouseOut Events The mouseMove Event The Keyboard Events The mouseDown and mouseUp Events The dragDrop Event Error Event Form Event The Script Tag Changing Text Color Inline Text Attribute Changes Text Dynamically Changing StylesExample of Dynamically Changing Style Dynamically Changing Content HTML Replacement Changing Text Content An Example of HTML Graphics ReplacementWeb DesignWeb HostingE Commerce |
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