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replacing a "-" in the numerical text

 
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Hi,

I have a text field in which a user enters a numerical value(+ve or -ve). I want to let him enter the character "-" at the beginning of the number and not in between. How can i achieve this using javascript?

How do i interpret "/^\s*/" and "/\s*$/"?
 
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Guessing either of these would work:



Eric
 
Christian Nash
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Eric/All,
Where can i get more information about stuff like "/^[\-\+]\d+$/" and "/^\-?\d+$/"?
 
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Any JavaScript reference worth its salt will include information on its regular expression capabilities.
[ April 19, 2007: Message edited by: Bear Bibeault ]
 
Eric Pascarello
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Basic overview: http://www.javascriptkit.com/javatutors/redev.shtml

Eric
 
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