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validating textfield with +ve/-ve values using 2 radiobuttons

 
Greenhorn
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In my jsp i had a textfield and 2 radio buttons
ie.,

Name of the textfield = pricePeriod
and two radio buttons : 1. Yes 2. No

By Default "pricePeriod = 0" and selected as "yes" Radio Button user has a mechanism to change the values
if i enter "Negative value" then "Yes" should be selected
if i change the value as "Positive value " in the textfield then "No" should be selected.
can anybody tell me how can i go further in this regard,

please, give me reply asap , urgent....
 
Ranch Hand
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You can use the 'onBlur' event of the textfield to invoke a function which will check the textfield's value and accordingly set the 'checked' attribute of the corresponding radio button to 'true'.
 
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Originally posted by soma lingam:
please, give me reply asap , urgent....


Please read this for information on why putting such phrases into your posts isn't a good idea.
[ February 06, 2008: Message edited by: Bear Bibeault ]
 
Consider Paul's rocket mass heater.
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