Dynamic Form Validation using javascript
<p>Its the newbie again.. I am trying to design a form that takes a username and a password and validates them. However first i want to make sure that the user fills in both the fields before i pass it on to the servlet or any other server related component. I wish to do so using javascript which generates an alert button, more like a JOptionPane when either or both the fields are empty. My code is </p>

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<p>index.jsp</p>

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<pre><code>&lt;%@page contentType="text/html" pageEncoding="UTF-8"%&gt;
&lt;!DOCTYPE html&gt;
&lt;html&gt;
&lt;head&gt;
    &lt;meta http-equiv="Content-Type" content="text/html; charset=UTF-8"&gt;
    &lt;title&gt;JSP Page&lt;/title&gt;
    &lt;script src="newjavascript.js"&gt;&lt;/script&gt;
&lt;/head&gt;
&lt;body&gt;
    &lt;h1&gt;Hello World!&lt;/h1&gt;
    &lt;form id="form" method="post" action="final.jsp"&gt;
    Student name :&lt;br&gt;&lt;input type="text" value="" name="username"   id="idusername"&gt;&lt;br&gt;&lt;br&gt;
    Password :&lt;br&gt;&lt;input type="text" value="" name="password" id="idpassword"&gt;&lt;br&gt;&lt;br&gt;
    &lt;input type="submit" value="Register" /&gt;
&lt;/form&gt;
&lt;/body&gt;
&lt;/html&gt;
</code></pre>

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<p>I pass the above onto a javascript file newjavascript.js which is</p>

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<pre><code>$(document).ready(function(){
var form = $("#form");
var username = $("#idusername");
    var password = $("idpassword");
//On Submitting
form.submit(function(){
    if(validateName() &amp; validatePassword())
        return true;
    else
    {
        alert('Some fields are not filled correctly. Please fill them correctly.');
        return false;
    }
});

function validateName(){

    if(username.val().length &lt; 1){
        return false;
    }

    else{
        return true;
    }
}

    function validatePassword(){


    if(password.val().length &lt;5){
        return false;
    }

    else{           
        return true;
    }
}
});
</code></pre>

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<p>Is my javascript code wrong or i am not properly able to pass on the parameters to it ??</p>
