JavaScript Examples Bible - UserWorks Technologies

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Location and History Objects (Chapter 17) While both the location and history objects contain valuable information about the user’s Web surfing habits and even the content of forms, they could also be abused by nefarious scripts that wish to invade the privacy of unsuspecting site visitors. As a result, browsers do not expose the private details to scripts (except in NN4+ via signed scripts and the user’s express permission). The location object, however, is still an important object to know and exploit. As shown in the examples here, you can use it as one cookie-free way to pass text data from one page to another. And the object remains the primary way scripts load a new page into the browser. Examples Highlights ✦ The frameset listing for the location.host property demonstrates several location object properties. You also find an example of how signed scripts can be used in NN4+ to access location object properties for pages served by a different domain. ✦ Listings for the location.search property pass data from one page to another via a URL. In this case, a script in a page not only makes sure that your site gets served within the prescribed frameset, but the specific page also gets loaded into one of the frames, even if it is not the page specified in the frameset’s definition. ✦ Observe the location.replace() method’s example. This method comes in handy when you don’t want one of your pages to become part of the browser’s history: Clicking the Back button skips over the replaced page. ✦ Run Listings 17-12 and 17-13 for the history.back() method to see how the behavior of this method varies among browsers. Consult the JavaScript Bible text for details on the evolution of this method. 3 C H A P T E R ✦ ✦ ✦ ✦ In This Chapter Loading new pages and other media types via the location object Passing data between pages via URLs Navigating through the browser history under script control ✦ ✦ ✦ ✦
206 JavaScript Examples Bible: The Essential Companion to JavaScript Bible Location Object Properties hash NN2 NN3 NN4 NN6 IE3/J1 IE3/J2 IE4 IE5 IE5.5 Compatibility ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ Example When you load the script in Listing 17-1, adjust the size of the browser window so only one section is visible at a time. When you click a button, its script navigates to the next logical section in the progression and eventually takes you back to the top. Listing 17-1: A Document with Anchors location.hash Property function goNextAnchor(where) { window.location.hash = where } Top Section 1 Section 2 Section 3 windowObject.location.hash
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100% ONE HUNDRED PERCENT COMPREHENS
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“An excellent book that builds so
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JavaScript Examples Bible: The Ess
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About the Author Danny Goodman is t
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Preface Acommon thread running thro
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Preface Listing numbers are derived
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Acknowledgments Because most of the
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Contents Preface. . . . . . . . . .
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Contents Chapter 7: The Form and Re
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Contents Chapter 15: The NN4 Layer
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192 FRAME.scrolling JavaScript Exam
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196 FRAMESET.cols JavaScript Exampl
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198 IFRAME.align JavaScript Example
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200 IFRAME.src JavaScript Examples
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Body Text Objects (Chapter 19) The
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Note Chapter 5 ✦ Body Text Object
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Chapter 5 ✦ Body Text Objects (Ch
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width Chapter 5 ✦ Body Text Objec
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commonAncestorContainer Chapter 5
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Methods cloneContents() cloneRange(
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extractContents() Chapter 5 ✦ Bod
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var count = form.deleteCount.value
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inRange(otherRangeRef) Chapter 5
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TextRectangle Object Properties bot
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Image, Area, and Map Objects (Chapt
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Chapter 6 ✦ Image, Area, and Map
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dynsrc Chapter 6 ✦ Image, Area, a
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nameProp Chapter 6 ✦ Image, Area,
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start x y Chapter 6 ✦ Image, Area
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} Chapter 6 ✦ Image, Area, and Ma
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The Form and Related Objects (Chapt
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Chapter 7 ✦ The Form and Related
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length Chapter 7 ✦ The Form and R
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submit() Chapter 7 ✦ The Form and
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Button Objects (Chapter 24) The top
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Chapter 8 ✦ Button Objects (Chapt
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Checkbox Input Object Properties ch
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value Chapter 8 ✦ Button Objects
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Text-Related Form Objects (Chapter
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Chapter 9 ✦ Text-Related Form Obj
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document.forms[0].inspector.readOnl
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Chapter 9 ✦ Text-Related Form Obj
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} } Chapter 9 ✦ Text-Related Form
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onChange Chapter 9 ✦ Text-Related
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Select, Option, and Optgroup Object
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Chapter 10 ✦ Select, Option, and
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selectedIndex Chapter 10 ✦ Select
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Event handlers onChange Chapter 10
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Table and List Objects (Chapter 27)
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gColor Chapter 11 ✦ Table and Lis
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Now, adjust the cell spacing: docum
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NigerAtlantic Ocean26004180 Zamb
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Chapter 11 ✦ Table and List Objec
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type Chapter 11 ✦ Table and List
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Navigator and Other Environment Obj
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Chapter 12 ✦ Navigator and Other
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mimeTypes Chapter 12 ✦ Navigator
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screen Object Properties availLeft
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Event Objects (Chapter 29) As earli
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Chapter 13 ✦ Event Objects (Chapt
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Chapter 13 ✦ Event Objects (
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Figure 13-2: Clicking on one SPAN e
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clientX clientY layerX layerY pageX
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eventPhase Chapter 13 ✦ Event Obj
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440 ruleObject.style JavaScript Exa
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String and Number Objects (Chapters
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Parsing methods string.charAt(index
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488 array.concat() JavaScript Examp
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490 array.concat() JavaScript Examp
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492 array.reverse() JavaScript Exam
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494 array.sort() JavaScript Example
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What’s on the CD-ROM The accompan
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A above property, 442-443 accessKey
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set to empty, 11 working with, 12 c
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location property, 238-240 methods,
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frames border, 197-198, 199 control
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onDragStart event handler, 103, 108
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insertBefore() method compatibility
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go(), 221-222 hasChildNodes(), 74-7
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onSelectStart event handler compati
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frame, 385-387 FRAME element object
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protocol property, 213 document obj
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self property compatibility, 149 ex
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text property BODY element object,
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X x property IE4+ event object, 413
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4. Restrictions on Use of Individua
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CD-ROM Installation Instructions Th
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