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javascript alert message box

Posted on 2011-03-20
Medium Priority
Last Modified: 2012-05-11
Hello.  I am currently taking a JavaScript class and I have learned how to create alert box this week :)  I am curious that if there's a way to expand the number of characters allowed for these type of boxes for a long message to still show?
A friend of mine mentioned me about my other question of the positioning of alert box, he mentioned me that I need to use css and create modal popups and overlays.  Can I use the same method?

Thank you for your help in advance.
Question by:sabregirl
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Accepted Solution

michael_madsen earned 1500 total points
ID: 35177213
The maximum lenth of characters in an alert message is 199 chars (at least for IE). I'm quite sure there is no way to extend that.

There is no way to position the alert box.

To create a modal dialog using CSS and layers, see this article: http://www.explainth.at/en/css/dlg.shtml
LVL 20

Expert Comment

by:Mark Brady
ID: 35177427
Yes you can use a messagebox in the form of a prompt. It is more flexible than javascripts "alert()" function. I think you can have up to 1024 characters in a prompt message so that would make things a bit easier for you don't you think.


See the example and explanation here.
LVL 75

Expert Comment

by:Michel Plungjan
ID: 35178281
Elvin: VBScript is not javascript. Please do not introduce IE-only VBScript to a student of JavaScript :)


Firefox 4 has by the way gotten scrollbars in its alert :)

jQuery UI Dialog is also an option, so is the buildt-in showModalDialog
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LVL 20

Expert Comment

by:Mark Brady
ID: 35179125
I've got no idea what you meant by your comments.
LVL 75

Expert Comment

by:Michel Plungjan
ID: 35179141
@Elvin: The asker is studying JavaScript and asks about a JavaScript issue.
You present him with a VBScript solution which is irrelevant since this is a JavaScript question.

From http://uopteamc.tripod.com/javavb.html

Comparison of JavaScript and VBScript


Both languages are easy to learn and do not require any expensive development tools
Both can be used to enhance web pages
They run on client machines and can substitute CGI programs to reduce server loads
Both can abuse and run malicious scripts on clients' machines


JavaScript is the default scripting language for browsers but VBScript must be specified as the scripting language.
JavaScript has cross-platform support from all popular browsers while VBScript is supported MS IE only. VBScripters would thus lose a sizable audience.

LVL 20

Expert Comment

by:Mark Brady
ID: 35185683

Fair comment by the asker posted this:

 I am curious that if there's a way to expand the number of characters allowed for these type of boxes for a long message to still show?

Now as I am from English decent that means he/she wants to know if there is a way to make larger messages in a messagebox. They did not ask that the answer MUST be in javascript. If that is the requirement for the question it should has been posted that way. I help people achieve a goal in any way I can. When people post in the PHP forum about how to achieve something like posting a form without refreshing, would you expect us experts to only supply the answer in Php code? I didn't think so. thanks for your comments but I think they are unwarranted in this case. I will excuse myself from this question and any more comments.
LVL 75

Expert Comment

by:Michel Plungjan
ID: 35186678
No need to be offended, no offense intended. Just read the title, the tags and the first line of the question again. I could suggest to dowload webkit, change the size of the alert box and recompile a personalised browser. Valid suggestion but not relevant :)

Expert Comment

ID: 35211216

I believe your question has been answered. If you disagree, please comment.

Author Closing Comment

ID: 35220625
Thank you for everyone who left comments for me :)  I have learned something new...
LVL 75

Expert Comment

by:Michel Plungjan
ID: 35220844
A split would have been nice... :)

Author Comment

ID: 35221013
Sorry mplungjan.  I will keep in mind next time!

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