SO fiddle

Test Fiddle mainly for SO Questions

by Nick Craver

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/overcast/jquery-ui.css">
<script src="http://ajax.microsoft.com/ajax/jquery.validate/1.7/jquery.validate.js"></script>
<div>
<form id="signupForm" method="get" action="">
<table> 
  <tr><td><input type="button" value="New" onclick="clearuserfields()"/></td></tr>
 <tr><td>USERID:</td><td><input type="text" id="userID"/></td></tr>
 <tr><td>FNAME:</td><td><input type="text" id="fname" name="fname" /></td></tr>
 <tr><td>LNAME:</td><td><input type="text" id="lname" name="lname" /></td></tr>
 <tr><td>EMAIL:</td><td><input type="text" id="email" name="email" /></td></tr>
 <tr><td>PASSWORD:</td><td><input type="text" id="password" name="password" /></td></tr>
 <tr><td>PHONENO:</td><td><input type="text" id="phoneno" name="phoneno" /></td></tr>
 <tr><td>ROLL:</td><td><input type="text" id="roll" name="roll" /></td></tr>
 <td><input type="button" value="Save" onclick="initialiseusers()"/></td>
 <td><input type="button" value="Delete" onclick="deleteuser()"/></td> 
 </table>
 </form>
</div>

JavaScript

$(function() {
  $("#signupForm").validate({
    rules: {
        fname: "required",
        lname: "required",
        email:{
            required: true,
            email: true
        },
        password:{
            required: true,
            minlength: 5
        },
        phoneno:"required",
        roll:{
            required: true,
            minlength: 2
        }
    },      
    messages: {
        fname:"Please enter your firstname",
        lname:"Please enter your lastname",
        email:"Please enter a valid email address",
        password:{
            required: "Please provide a password",
            minlength: "Your password must be at least 5 characters long"
        },
        phoneno:"Please enter your phoneno",
        roll:"Please enter your role"
    }
  });
});
function initialiseusers(){
  if($("#signupForm").valid())
    updateusers(); //called if successfully validated
};

function deleteuser() { }
function clearuserfieldds() { }
function updateusers() {
    alert("updateusers called");
}