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Index

L

label element, forms, 442–443
label object, HTMLLabelElement, 834
<label>
(X)HTML, 273
correspondence to label object, 834
forms, 442–443, 456
labels
break and continue statements and, 106–108
forms, 456
statements, 747
syntax, 747
language attribute, <script>, 7–8, 541, 721–722
language, browser detection, 548–549
languages, core
as component of object model, 221
core principles, 729–730
versions, 730–731
last-in first-out (LIFO), 165
lastIndex property, exec( ) method, 205
lastIndexOf( ) method, String object, 185
lastModified property, Document object, 388
Layer object, proprietary document objects, 479, 834–836
<layer>
correspondence to Layer object, 834
Netscape 4 and, 478–479
same-origin policy and, 681
layers[ ] collection, 397–398
left shift operator (<<), 83–84
legend object, HTMLLegendElement, 836–837
legend, forms, 443–444
<legend>, 444, 836
length property
Array object, 162–165
exec( ) method, 205
forms collection, 419
functions, 125–126, 745
String object, 54, 184
less than (<), 87, 145
less than or equal to (<=), 87, 145
Level 0 collections, DOM, 263
levels, DOM, 249–250
lexicographic order, 88, 743
li object, HTMLLIElement, 837
<li>, 837
libraries
DHTML, 480–489, 533
menus, 513
LIFO (last-in first-out), 165
link, HTMLLinkElement, 837–838
<link>, 285, 837
linked scripts, 15–16
links, 769–771
links[ ] collection, 391–392
lists, 62. See also arrays
literals
definition of, 24
syntax, 737–738
variable declaration and, 48
LiveConnect, 559
LiveScript, 558
local functions, 120–121
Local Intranet, security policies, 686
Local Machine, security policies, 686
local variables, 70, 117–119
Location object, browser objects, 366, 838–839
location property, Document object, 388–389
logical operators
conditional operator (?:), 89–90
list of, 89, 740–741
overview of, 34, 89
short-circuiting evaluation of logical expressions, 99
syntax, 740
lookahead (?!), 216
loops, 37–39
control, 38–39, 105–106
iteration with Enumerator object, 648
statements for, 97
syntax, 746–747
types of, 37–38

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