You can use jquery.validator (http://bassistance.de/jquery-plugins/
jquery-plugin-validation/) with a custom validation method on the age
field. Here's an example:

//custom validation method
$.validator.addMethod("contextualAgeValidation", function(value,
element, params) {
        //see if the first category is selected
        if( $("#category").val() == 1 ){
                //if so, return true if the age is 30 or more, false if not
                return value >= 30;
        }
        return true;
}, "Age must be at least 30 if the first category is selected");

Good luck!

On Feb 15, 2:29 pm, petergab <adm...@o2.pl> wrote:
> 1. I have a form and two fields. One is category and one is age. If first
> category is selected the age must be min 30. Is it possible to validate it
> with jQuery?
>
> 2. Second one is similar. I need to set the earliest date in the field
> depending on category.
> --
> View this message in 
> context:http://www.nabble.com/field-%28min%2C-max%29-depending-on-other-field...
> Sent from the jQuery General Discussion mailing list archive at Nabble.com.

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