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Highlight text into textarea

Hola boys, i've a question for you!
It's possible to highlight some text inside a textarea? (not all text,
but a portion!)
For example, i've this text inside a textarea.


i want to highlight only "INSERISCI TESTO".
It, must be an universal function, so i can use it also in other cases,
for example when tag are [ SM ] and [ /SM].
I hope someone can help me, because through internet i find only code IE
compatible e not FIREFOX compatible, and viceversa.
I'd like to have compatibility with both browser.

Thank you so much, for your help.
I'm waiting for you...

May 16 '06 #1
1 7490
tranky wrote:
Hola boys, i've a question for you!
It's possible to highlight some text inside a textarea? (not all text,
but a portion!)
For example, i've this text inside a textarea.


In Mozilla/Firefox, you can highlight a single contiguous region in a
textarea via textarea.setSel ectionRange(sta rtPos, endPos). The
selection is only visible while the textarea has focus AND before the
textarea first has focus

In FF, there is a second (manual) way to achieve highlighting in a
textbox, but I have not looked into the possibilities of invoking it
with javascript. To be useful, I would think that it would have to
allow for regular expressions as a specifier: Do a search via ctrl+f.
By https://bugzilla.mozilla.org/show_bug.cgi?id=252371 sought text in
the textarea will not be highlighted. However, if you now press alt+a
you can see all found instances highlighted, including in the

If you find javascript access to the presumed highlightAll function, it
would be great if you would post back details. Especially useful would
be the ability to restrict the scope of such a highlightAll function.

Csaba Gabor from Vienna

May 16 '06 #2

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