Bootstrap Snippet Show Hide Text Fields using HTML Bootstrap jQuery

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<link href="//netdna.bootstrapcdn.com/bootstrap/3.1.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//netdna.bootstrapcdn.com/bootstrap/3.1.0/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<!------ Include the above in your HEAD tag ---------->
<div class="container">
<div class="row">
<div class="col-md-6">
<h1>Toggle fields based on form values</h1>
<p>Change the age field and see what happens</p>
<form method="POST">
    <p>Name:
        <input type="text" name="player_name" />
    </p>
    <p>Email:
        <input type="text" name="player_email" />
    </p>
    <p>Age:
        <select id="age" name="age">
            <option value="13">13</option>
            <option value="14">14</option>
            <option value="15">15</option>
            <option value="16">16</option>
            <option value="17">17</option>
            <option value="18">18</option>
            <option value="19">19</option>
            <option value="20">20</option>
            <option value="21">21</option>
            <option value="22">22</option>
            <option value="23">23</option>
            <option value="24">24</option>
            <option value="25">25</option>
            <option value="0">Other</option>
        </select>
    </p>
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//Purpose: toggle the visibility of fields depending on the value of another field
$(document).ready(function () 
{
    toggleFields(); 
    //call this first so we start out with the correct visibility depending on the selected form values
    //this will call our toggleFields function every time the selection value of our underAge field changes
    $("#age").change(function () 
    {
        toggleFields();
    });
});
//Function: this toggles the visibility of the child field depending on the selected value of the parent
function toggleFields() {
    if ($("#age").val() == 0)
        $("#parentPermission").show();
    else
        $("#parentPermission").hide();
}
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"Show Hide Text Fields"
Bootstrap 3.1.0 Snippet by escapedlion

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"Show Hide Text Fields" Bootstrap 3.1.0 Snippet by escapedlion

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"Show Hide Text Fields"
Bootstrap 3.1.0 Snippet by escapedlion