JavaScript Examples Bible - UserWorks Technologies

Chapter 1 ✦ Generic HTML Element Objects (Chapter 15)
Example
Values for the lang property consist of strings containing valid ISO language
codes. Such codes have, at the minimum, a primary language code (for example,
“fr” for French) plus an optional region specifier (for example, “fr-ch” for Swiss
French). The code to assign a Swiss German value to an element looks like the
following:
document.all.specialSpan.lang = “de-ch”
language
NN2 NN3 NN4 NN6 IE3/J1 IE3/J2 IE4 IE5 IE5.5
Compatibility ✓ ✓ ✓
Example
Although it is unlikely that you will modify this property, the following example
shows you how to do it for a table cell object:
document.all.cellA3.language = “vbs”
lastChild
See firstchild.
length
NN2 NN3 NN4 NN6 IE3/J1 IE3/J2 IE4 IE5 IE5.5
Compatibility ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
Example
You can try the following sequence of statements in the top text box of The
Evaluator (Chapter 13 in the JavaScript Bible) to see how the length property
returns values (and sets them for some objects). Note that some statements work
in only some browser versions.
(All browsers) document.forms.length
(All browsers) document.forms[0].elements.length
(NN3+, IE4+) document.images.length
(NN4+) document.layers.length
(IE4+) document.all.length
(IE5+, NN6) document.getElementById(“myTable”).childNodes.length
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elementObject.length