Re: PHP/CSS/Javascript question

----- Original Message ----- From: "tedd" <tedd@sperling.com>

Hi all,

Is it possible to modify a table using JavaScript to control CSS visabilty when the entire table is developed dynamically using PHP? Thanks, Paul

Satyam said:

You don't need to change the CSS (I don't even know if it is possible), but you can change specific styles of any element within the HTML. For example:

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.

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.

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. Satyam

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