The disabled attribute of HTML 4
First and foremost, let's look at the disabled
attribute, an attribute for form elements found in HTML 4. With it, you
can disable any form element (the element appears grayed out and
unclickable). Take a look at the following example:
Try submitting the above form...I'm waiting. As hard as you
may try, and assuming you're using IE 4 or above (since the disabled
attribute is only supported in IE 4+/Firefox), there simply is no way you could
submit the form, since I "disabled" the submit button. Here's the entire
source code to the above form:
<form>
<input type="text" size="20" value="Can't submit this!">
<input type="submit" value="Submit" name="B1" disabled="disabled">
</form>
Simply by adding the attribute "disabled" to the input
element, it disables the element. You can add the disabled attribute to
any form element to disable that particular element. Here are some more
examples:
As cool as disabling an element is, I hope that's not all
you have in mind (I don't know, you might want to re-enable it). Actually,
that better not be all you have in mind! You see, the disabled attribute is
one of those attributes that are pretty much useless without the help of
it's cousin- JavaScript. Only JavaScript can bring elements cursed by this
attribute back to life, and that's why JavaScript rules (no offense, HTML
gurus).
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