Index_D

D

Data Binding model, 660 “662

data islands, XML, 618 “619, 630 “632

data types

conversion, 64 “67

dynamic typing, 29 “31

overview of, 29

syntax reference, 732

typeof operator for examining, 63

data types, composite. See also reference types

arrays, 31 “32, 62

functions, 63

objects, 32 “33, 60 “62

overview of, 31

passing by reference, 115 “116

syntax reference, 735

data types, primitive

Booleans, 57 “58

conversion rules for, 65 “66

list of, 732

null, 59 “60

numbers , 49 “53

object types corresponding to, 188

passing by value, 114 “115

promoting to objects, 66 “67

strings, 53 “57

syntax, 732 “733

undefined , 58 “60

dataTransfer object, proprietary browser objects, 788 “789

Date object, 174 “178

constructors, 789 “790

converting dates to strings, 177

converting strings to dates, 177 “178

creating dates, 174 “175

limitations of date representation, 178

manipulating dates, 175 “1599

methods , 790 “793

overview of, 174, 789

properties, 790

Date( ) constructor, 174 “175

dd object, HTMLElement, 793 “794

<dd>, 793

debugging, 702 “709

debuggers , use of, 706 “709

error notification, 699

list of common errors and symptoms, 701 “702

manually outputting debugging information, 702 “703

stack traces, 703 “706

turning on error messages, 698 “699

deceptive programming tactics, browser security, 692

declaring variables , 47, 69 “70

decode( ) methods, Global methods, 180

decrement operator (--), 85 “86

deep clones , 267

defaultStatus property, Window object, 367

defensive programming

browser capabilities detection, 718 “720

code hiding, 720 “723

error handlers, 710 “712

Error object, 714 “715

error reporting, automatic, 712 “714

exceptions, 714, 718

overview of, 709 “710

try, catch, and throw statements, 715 “717

del object, HTMLModElement, 794

<del>, 794

delete operator

deleting objects, 33, 93 “94

removing array elements, 162

removing instance properties, 137

deleteCookie( ) method, 527

deleteLastElement( ), 630

deleteRule( ) method, 285

detachEvent( ) method, 322

dfn object, HTMLElement, 794 “795

<dfn>, 794

DHTML (Dynamic HTML), 476 “504

animation, 500 “504

browser-specific, 476

computed styles, 494 “496

cross browser library, 480 “489

CSS positioning, 477 “478

DHTML Behaviors compared with, 670

Document object collections related to, 397 “398

DOM compared with, 291 “294

DOM positioned regions , 479 “480

DOM standards, 134, 236

IE positioned regions, 479 “480

menus . see menus, DHTML

Netscape 4 and, 237 “240

Netscape positioned regions, 478 “479

rollovers, 498 “499

sparing use of DHTML effects, 504

standards-basis of, 489

style classes, 493 “494

style objects, 489 “493

transitions, 496 “499

DHTML Behaviors, 664 “670

attaching to elements, 665

compared with tradition DHTML, 670

defaults, 668 “669

defining, 666 “668

element behaviors, 669 “670

overview of, 664 “665

removing, 666

storing client-side state, 532

dialogs, 347 “351

alerts, 348

confirmations , 348 “350

overview of, 347 “351

prompts, 350 “351

digital certificates, 683 “684

dir object, HTMLDirectoryElement, 795

<dir>, 795

disabled attribute, form fields, 457

dispatchEvent( ) method, DOM2, 340 “341

display( ) method, Array object, 172

div object, HTMLDivElement, 795 “796

<div>

class attribute, 493

correspondence to HTMLDivElement, 796

menu styles and, 510 “511

Netscape 4, 478

Style objects and, 489

division (/) operator, 79

dl object, HTMLDListElement, 796

<dl>, 796

do... while loops , 747

Document object, 796 “801

accessing using associative arrays, 232

anchors[ ] collection, 391 “392

as built-in object, 61

color properties, 385 “388

correspondence to (X)HTML, 400 “404

DHTML-related collections, 397 “398

DOM Level 1 properties and collections, 398 “399

element access by name , 231

element access by position, 230

elements[ ] collection, 393 “394

forms[ ] collection, 392 “393

historic properties, 385

HTML-related collections, 391 “397

images[ ] collection, 394 “396

last modification date, 388

links[ ] collection, 392

location properties, 388 “389

lowest common denominator document properties and methods, 225 “229

methods, 389 “391, 799 “801

object-related collections, 396 “397

output with, 41

overview of, 796

properties, 796 “799

support for (X)HTML, 398 “400

Web page content and, 32

Document Object Model. See DOM (Document Object Model)

document objects, 761 “769

abbr, 771

acronym, 771

address, 772 “773

anchors and links, 769 “771

applet, 773 “774

area, 774

b, 777

base, 777

baseFont, 777 “778

bdo, 778

bgSound, 778 “779

big, 779

blockQuote, 779 “780

body, 780 “781

br, 782

button, 782 “783

Button, 783 “784

caption, 784

center, 784 “785

Checkbox, 785 “786

cite, 786

code, 787

col, 787 “788

colGroup, 788

as component of object model, 221

dd, 793 “794

del, 794

dfn, 794 “795

dir, 795

div, 795 “796

dl, 796

dt, 801

em, 802

fieldset , 818

file, file upload, 818 “819

font, 819 “820

form, 820

frame, 821

frameSet, 822

h1, h6, 827

head, 825

Hidden, 826

hr, 827

html, 827 “828

i, 828

iframe, 828 “829

Image, 829 “831

implementation, 831

input, 832

ins, 832

isIndex, 832

kbd, 833

label, 834

legend, 836 “837

li, 837

link, 837 “838

map, 839

menu, 842

meta, 842

noFrames, 846

noScript, 846 “847

object, 849 “850

ol, 850 “851

optGroup, 851

option, 851 “852

overview of, 134

p, 852

param, 853

Password, 854

plainText object, deprecated, 854

pre, 856

q, 856

Radio, 856 “857

Reset, 859 “860

rule, CSSrule, 861 “862

samp, 862

script, 863 “864

select, 864 “865

Style, 870 “885

style, 885

styleSheet, 886 “887

sub, 887

submit, 888

sup, 889

table, 889 “891

tBody , tHead, tFoot, 891

td, 891

Text, 893 “894

textarea, 894 “895

TextNode object, 895 “896

th, 891

title, 899

tr, 899 “900

tt, 900

u, 901

ul, 901

var, 902 “903

document objects, proprietary

currentStyle, 788

embed, 802 “803

Layer, 834 “836

marquee, 839 “840

noBR, 845 “846

page, 853

rt, 860

ruby, 861

runtimeStyle, 862

wbr, 903

xml, 911 “913

xmp, 914

document property, Window object, 134

document trees, DOM

accessing elements, 255 “256

browser differences in navigating, 261 “262

nodes. see nodes, DOM

overview of, 252 “255

starting points, 262 “263

document type definition (DTD), 607 “608

documentElement property, Document object, 263

dollar sign($), positional indicator, 194

DOM (Document Object Model), 249 “295

(X)HTML elements associated with, 402 “404

attribute manipulation, 271 “272

browser and capability detection, 720

categories, 250

compared with BOM, 221

compared with DHTML, 291 “294

document tree navigation, browser differences, 261 “262

document tree starting points, 262 “263

document trees, 252 “255

DOM Traversal API, 287 “289

event methods, 810 “811

event model. see DOM2 Event model

events, 812 “813

getElementbyId( ) method, 255 “256

getElementsByName( ) method, 262

getElementsByTagName( ) method, 263 “264

hasChildNodes( )method, 258 “261

HTML elements and, 272 “276, 400 “402

Internet Explorer XML example, 620 “624

Level 0 collections, 263

Level 1 collections, 398 “399

levels, 249 “250

mapping to CSS, 277 “279

Mozilla XML example, 624 “630

node copies, 267 “268

node creation, 264 “265

node deletion and replacement, 268 “269

node insertion, 265 “267

node modification, 269 “271

node properties, 256

overview of, 21, 134, 249

positioned regions, 479 “480

range selections, 289 “290

standards, 236

table manipulation, 405 “414

upcoming features, 290

Window object methods, 360 “361

DOM Level 0, 250, 263

DOM Level 1

accessing elements, 263

attributes, 271 “272

overview of, 250

DOM Level 2

DOM Traversal API, 287 “289

event model. see DOM2 Event model

hasAttributes( ) method, 271

overview of, 250

range selections, 289 “290

styleSheets[ ] collection, 285

DOM Range API, 289 “290

DOM Traversal API, 287 “289

DOM2 Event model. See event model, DOM2

DOM-based HTML editor, 276

dot (.) operator, 136

double ampersand (&&), logical operator, 89

double foreslash (//), 43

double pipe(), logical operator, 89

doubling string, browser security, 691

do-while loops, 37 “38, 103 “104

Dreamweaver, Macromedia, 708

drop-in form validation, 449 “451

dt object, HTMLElement, 801

<dt>, 801

DTD (document type definition), 607 “608

dynamic content, remote JavaScript, 589 “592

dynamic forms, 458 “461

Dynamic HTML. See DHTML (Dynamic HTML)

dynamic properties, IE, 662 “664

dynamic scope note, 498

dynamic styles, CSS, 283 “284

dynamic typing, 29 “31, 155