html - jquery validation for field with default value -

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this question has answer here:

http://jqueryvalidation.org/files/demo/

i using above plugin jquery validation of registration form

it working properly, in form there 1 field name "domain" default value has been set "www." user have write other part domain.

so practically not blank time, not validating if user left filed default value, here jquery , html code

    <script> $().ready(function() {          $("#frm").validate({             rules: {                 domain: "required",                 uname: "required",                 password:'required',                 cpassword:'required',                 fname:'required',                 lname:'required',                 bussname:'required',                 city:'required',                 state:'required',                 pincode:'required',                 country:'required',                 phone1:'required',                 email: {                     required: true,                     email: true                 },                 code:'required',               },             messages: {                 domain: "please enter domain name",                 uname: "please enter user name",                 password: "please enter password",                 cpassword:'please confirm password',                 fname:'please enter first name',                 lname:'please enter last name',                 bussname:'please enter practice',                 city:'please enter city',                 state:'please enter state',                 pincode:'please enter zip code',                 country:'please select country',                 phone1:'please enter phone',                 email: 'please enter email address',                 code: 'please enter security code',               }         });       }); </script>

my html form

    <form name="frm" id="frm" action="ezregistration2.php" method="post">   <input name="domain" type="text" id="domain"  value="www."  size="40" class="tb7"   />    <input name="uname" type="text" id="uname" value="" size="40" class="tb7" onkeyup="countchars(this);" />   <input name="password" type="password" id="password"  size="40" class="tb7">  <input name="cpassword" type="password" id="cpassword"  size="40" class="tb7">   <input name="fname" type="text" id="fname" value="" size="40" class="tb7" >   <input name="lname" type="text" id="lname" value="" size="40" class="tb7" >   <input name="bussname" type="text" id="bussname" value="" size="40" class="tb7">   <input name="address1" type="text" id="address1" value="" size="40" class="tb7">     <input name="address2" type="text" id="address2" value="" size="40" class="tb7">   <input name="city" type="text" id="city" value="" size="40" class="tb7" >                                                     <input name="state" type="text" id="state" value="" size="40" class="tb7" >   <input name="pincode" type="text" id="pincode" value="" size="40" class="tb7" >  <select name="country" id="country" class="tb7" style="width:225px;">  <option value="afghanistan">afghanistan</option></select>  <input type="text" name="phone1" size="40" id="phone1" value="" onkeypress="return nonumbers(event)" class="tb7">  <input name="email" type="text" id="email" value="" size="40" class="tb7">  <input type="text" name="code" id="code" size="8" class="tb7" style="width:100px" />  <input name="submit" type="image" src="homeimages/submit.jpg" class="submitbtn" style="outline:none;" />   <input type="hidden" name="sub" value="1"> </form>

is there anyway should not allow default value upon validation ?

add before $("#frm").validate({

jquery.validator.addmethod("domain", function(value, element){ return this.optional(element) || value != "www."; }, "please enter domain name");

and in rules change domain: "required", to

domain: {     required: true,     domain: true },

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