398 Part III . Document (Web server certificate) Objects Reference The
398 Part III . Document Objects Reference The other image trick is to be sure to specify HEIGHTand WIDTH attributes for every image, scripted or otherwise. Navigator 2 requires these attributes (as does the HTML 4.0 specification), and document-rendering performance is improved on all platforms, because the values help the browser lay out elements even before their details are loaded. In addition to the document.write()example that follows (see Listings 18-16 through 18-18), you can find fuller implementations that use this method to assemble images and bar charts in many of the applications in Chapters 48 through 57. Because you can assemble any valid HTML as a string to be written to a window or frame, a customized, on-the-fly document can be as elaborate as the most complex HTML document that you can imagine. On the CD-ROM Example on the CD with Figure 18-2 and Listings 18-16, 18-17, and 18-18 Related Items: document.open(); document.close(); document.clear() methods. Event handlers onSelectionChange NN2 NN3 NN4 NN6 IE3/J1 IE3/J2 IE4 IE5 IE5.5 Compatibility . The onSelectionChange event can be triggered by numerous user actions, although all of those actions occur on elements that are under the influence of the IE5.5/Windows edit mode. Related Items: onControlSelect event handler. onStop NN2 NN3 NN4 NN6 IE3/J1 IE3/J2 IE4 IE5 IE5.5 Compatibility . The onStop event fires in IE5 when the user clicks the browser s Stop button. Use this event handler to stop potentially runaway script execution on a page, because the Stop button does not otherwise control scripts after a page has loaded. If you are having a problem with a runaway repeat loop during development, you can temporarily use this event handler to let you stop the script for debugging. document.onStop
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