----- Original Message -----
From: "tedd" <tedd@xxxxxxxxxxxx>
Yes, it's just a text file -- it can be re-written. However, it needs to
be loaded again to take affect.
And it affects all documents of all users. Suddenly, by the action of one
user, all other users reaching the same page will see things as per the
actions of another user. Unless you take care to keep separate CSS files.
Yes, that's true -- but I was thinking that the user was the coder and
that's what he/she wanted to do -- not that it was open to users to change
per their whim.
Perhaps I misunderstood the original post.
Well, the original question was quite short. Either of us might be right or
wrong. I assumed the case of a table with optional sub-items, like an
expanding tree, or a menu or a table with categories where you want to
expand any of the categories into its components.
document.getElementById('IdOfDivContainingTable').style.display='none';
It is particularly usefull to enclose whichever set of elements that you
wish to change into a single entity, a DIV or SPAN, if at all possible.
That's the main principle of ajax, isn't it? Using DOM to apply changes
within the document. It might be old-hat to most, but I find it
fascinating.
No, this is not AJAX, it is simply using the DOM. Ajax also involves
communication with the server in the background.
Yes, you are correct -- thanks for the clarification. At this point in my
learning, both appear so intertwined that they are synonymous.
Styles assigned in this way have precedence over those from a style
sheet
The precedence is simply inheritance -- last stated is applied.
No, if you dynamically load a new stylesheet after you set the style of an
element using the DOM, this style would still have precedence over the
new stylesheet. The precedence of styles is set by how you set it.
Setting a style through the DOM has precedence over CSS attributes, which
have precedence over styles specified by the style HTML attribute which
has precedence over the default rendering of an element. Only within the
same category the order of assignment would matter.
And, by the way, yes, you can load a new stylesheet.
As Johnny Carson said often "I didn't know that!" -- thanks.
So it's: DOM > CSS > HTML > Browser Default -- is that the precedence
you are saying?
That's what my manual says. I remembered there was some precedence issue
from some code of mine, some time ago, that didn't work as expected. I
think it was a style="" attribute that wasn't working while when assigning
it via the DOM did, and I couldn't figure out until I realized that a CSS
definition was in between, having higher precedence than the style
attribute, but lower than the DOM. One of those bugs that drive you nuts.
Satyam
tedd
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