How to put the errorplacement in jquery validation?

How to put the errorplacement in jquery validation?

<form id="information" method="post" action="#">
$(document).ready(function () {
validator = $('#information').validate();

});
function send(){
validator({
   errorLabelContainer: "#errorclass",
   wrapper: "li"     
}); 
}
<fieldset>
<legend>Write your question here (*)</legend>
<span id="invalid-text"></span>
<textarea  id="text" name="text" rows="8" cols="8"></textarea>
<div id="submission">
<input type="submit" id="submit" value="Send" name="send" onclick = "send();"/>
</div>
<p class="required">(*) Required</p>
</fieldset>

</form>
I have more than 10 buttons in my page.I need errorLabelContainer for only one button(clicking save button only).I am using validator in top of the page. But following code isn't working in my page.

validator({
    errorLabelContainer: "#errorclass",
    wrapper: "li"     
 }); 
It throws following error.

validator has no method.

How to rewrite this above code?