Special Chars: Auto Remove In Forms

Mar 19, 2010

I want to remove special characters in form fields. It should be automatic. I have a name filed where user entering text and i not want special characters, it should remove automatic.

something like this i need,

onkeyup="javascript:this.value=this.value.replace(/[^0-9]/g, '');"

here, all non-digits get removed automatic.

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Jan 21, 2005

Ok, I am (still) trying to validate this form's username and make sure it contains no spaces and no special characters. I've been trying forever now... Can you point me in the right direction or get me out of this hole please? Code:

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i have a special java code for input strings like:


<script type="text/javascript">
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But i dont know how to make it work in <input> and this is also without spaces check ..

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Nov 14, 2011

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<script type="text/javascript"><!--
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Where the inputs sum1 and sum2 are text fields you put whatever numbers you want in. That works fine. Great. Now what I'm having trouble with is modifying the code so that it will add one form with an input number with a form that spits out a randomly generated number.

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This is what I'm using for my random number generator. So basically I want to be able to put, say, 5, into the input text field above this. And then click on the d20 button to get a random number, say, 15, and then have the first code add the inputted 5 with the randomly generated 15.

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if ( xx[K]=="荐" ) { N = 2;}

note that I'm using notepad which would never accept the Chinese character shown and that code only represents my intention. I'd gladly use a html value like .

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I've got this php code

Code PHP:

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I'm making a small web app and I want to upload files on the server. Everything works fine, but what I want to achieve is to remove any special chars in the value name.My value name is 'NewFile'. I want to remove any special chars from the name before the upload process, ex.: remove things likeAll I want to keep in the string is small caps english letters (no etc.) and numbers. no spaces. I want to keep underscores and dashes too ( - and _ ).I can't seem to get it.That it what I used;

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I'm not very good in javascript, I took this code on the web.

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BTW, on the internet it was language="javascript" not type="text/javascript". Is this an old script or what?

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Jun 27, 2009

I took the script for a remaining chars script form this page at: [url] and i've adapted it to my page, but it does not work? I just cannot figure out why.

Here's the script taken from this site that works

And this is my script


And this is my html where i have the form3 with textarea and text input

The problem is that it does nothig. The value in the input text stays the same (125).

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The default class is

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Code sample:


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I would like to avoid supporting HTML tags in this textarea at the
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function LimitText(fieldObj,maxChars)
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