validation of radio button

i have a form with 4textboxes tied to radio buttons. the validation should be done only for the textbox whose radio button is selected. pl suggest.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "">
<html xmlns="">
<script src=""></script>
    rules: {
      boy: "required",
      girl: "required",
	  man: "required",
      woman: "required"
		messages: {
			boy: {
				required: "Please enter a boy",
				minlength: "Your boy must consist of at least 4 characters"
			girl: {
				required: "Please enter a girl",
				minlength: "Your girl must consist of at least 4 characters"
			man: {
				required: "Please enter a man",
				minlength: "Your man must consist of at least 4 characters"
			woman: {
				required: "Please enter a woman",
				minlength: "Your woman must consist of at least 4 characters"
<form name="bb">
<div id="mybuttonradios">
<input type="radio" name="a" value="b" />boy<input type="text" name="b" onfocus="this.parentNode.getElementsByTagName('input')[0].checked=true;" /><br/>
<input type="radio" name="a" value="g" />girl<input type="text" name="g" onfocus="this.parentNode.getElementsByTagName('input')[2].checked=true;" /><br/>
<input type="radio" name="a" value="m" />man<input type="text" name="m" onfocus="this.parentNode.getElementsByTagName('input')[4].checked=true;" /><br/>
<input type="radio" name="a" value="w" />woman <input type="text" name="w" onfocus="this.parentNode.getElementsByTagName('input')[6].checked=true;" />
<input type="button" value="check">

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yingwhoAuthor Commented:

my question is different as it has tied up with textboxes, we check if the radio button selected and the associated text box empty? and shout not validate other textboxes even if the have values. not regular radio group. pl advice.
instead of:
 boy: "required",

you need to specify a "dependency expression". Since boy depends on the first radio being checked, that should be:
 boy: {required:'input[value="b"]:checked'}
likewise for girl:
 girl: {required:'input[value="g"]:checked'}

also, notice that it is an object not a string. Lastly, your "message" section has messages for "required" and for minlength, BUT you have no minlength in the rules. You need to add them in the rules as well:

 boy: {required:'input[value="b"]:checked', minlength: 4}
 girl: {required:'input[value="g"]:checked', minlength: 4}

etc. Wasn't that easy?


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yingwhoAuthor Commented:
thanks guys.
Thanks for the points!
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