jquery inside Bootstrap modal

I'm using jquery code to check for duplicates in a database as the user types an email address in a field.  The code works fine until I place the field inside a Bootstrap modal.

Here's the jquery function
    <script type="text/javascript"> //Check if family email address has already been used.
	$(document).ready(function() {
    var x_timer;    
    $("#f_email").keyup(function (e){
        clearTimeout(x_timer);
        var f_email_var = $(this).val();
        x_timer = setTimeout(function(){
            check_f_email_ajax(f_email_var);
        }, 1000);
    });

function check_f_email_ajax(f_email){
    $("#user-result").html('<img src="ajax-loader.gif" />');
    $.post('/support/check_f_email.php', {'f_email':f_email}, function(data) {
      $("#user-result").html(data);
    });
}
});
</script>

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Here's the form code 
<div id="registration-form">
  <label for="f_email">Enter f_email :
  <input name="f_email" type="text" id="f_email" maxlength="45"> <span id="user-result"></span>
  </label>
</div>

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The page is here..

http://testregister.cenational.org/cc/dashboard.php

You'll see at the top a field where the jqery call works--when you finish typing, the database is dup-checked for the email address.  But when you click 'Add Family' you'll see a field called 'Enter f_email' that doesn't work.

Thanks for any help give,

Steve
LVL 2
stkoontzAsked:
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zephyr_hex (Megan)DeveloperCommented:
I suspect your problem is with event binding.  The way in which you're binding is only binding to elements that exist on the page at the point in time when this code runs:

$("#f_email").keyup(function (e){

}

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Try using "on", which will bind elements that are dynamically added to a page.

$("#f_email").on("keyup",function (e){

}

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stkoontzAuthor Commented:
Thanks for the suggestion, I do appreciate the help.  I inserted your code, but still don't get the function to work inside the modal.

Steve
zephyr_hex (Megan)DeveloperCommented:
Put a console log inside the jQuery function to verify it's triggering.  If it's not triggering, then please post the HTML for the modal, including the div or whatever that contains the modal.
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stkoontzAuthor Commented:
It didn't trigger.  Here's the HTML for the modal.  But if it's not triggering, would this code even have a chance to run?

    <div class="container">
  <!-- Trigger the modal with a button -->
	<td colspan="1"><button type="button" class="btn btn-info btn-lg" data-toggle="modal" data-target="#myModal">Add Family</button></td>

  <!-- Modal -->
  <div class="modal fade" id="myModal" role="dialog">
    <div class="modal-dialog">
    
      <!-- Modal content-->
      <div class="modal-content">
        <div class="modal-header">
          <button type="button" class="close" data-dismiss="modal">&times;</button>
          <h4 class="modal-title">Add Family</h4>
          Email, first and last name are required.  Other information will need to be filled out by the family contact.
        </div>
        <div class="modal-body">
          <p> 
          <div id="registration-form">
			  <label for="f_email">Enter f_email :
			  <input name="f_email" type="text" id="f_email" maxlength="45"> <span id="user-result"></span>
			  </label>
		  </div>
         
            	   <form name="form1" method="post" action="family_add_code.php">
          

         				<strong>Email address:</strong>
       		            <br />
		               	<input type="text" name="f_email" id="f_email" size="40" maxlength="50" value='' /> <span id="user-result"></span>
    		            <br />
                          <strong>First Name:</strong><br />
	                      <input type="text" name="f_fname" id="f_fname" size="25" maxlength="25" value='' required>
						<br />
                          <strong>Last Name:</strong><br />
	                      <input type="text" name="f_lname" id="f_lname" size="40" maxlength="40" value='' required>
						<br />
    		              <strong>Phone</strong><br />
	                      <input type="text" name="f_phone" id="f_phone" size="12" maxlength="12" value=''>
						<br />
    		              <strong>Address 1</strong><br />
	                      <input type="text" name="f_address1" id="f_address1" size="40" maxlength="50" value=''>
						<br />
    		              <strong>Address 2</strong><br />
	                      <input type="text" name="f_address2" id="f_address2" size="40" maxlength="50" value=''>
						<br />
    		              <strong>City</strong><br />
	                      <input type="text" name="f_city" id="f_city" size="40" maxlength="40" value=''>
						<br />
						  <strong>State</strong><br />
	                      <input type="text" name="f_state" id="f_state" size="20" maxlength="20" value=''>
						<br />
						  <strong>Zip</strong><br />
	                      <input type="text" name="f_zip" id="f_zip" size="20" maxlength="20" value=''>
						<br />
						  <strong>Country</strong><br />
	                      <input type="text" name="f_country" id="f_country" size="20" maxlength="20" value='United States'>
						<br />
						<br />
	                      <input type="text" name="id_church" id="id_church" value='<?php echo $id_church;?>'>
	                      <input type="submit" name="button" id="button" value="Add Family">
                    </form>
		</p>
        </div>
        <div class="modal-footer">
          <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
        </div>
      </div>
      
    </div>
  </div>

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stkoontzAuthor Commented:
Thanks @zephyr_hex for helping me. Any ideas from the modal code?

Steve
zephyr_hex (Megan)DeveloperCommented:
You must have something else going on then.  Because the code you posted works fine and triggers the jQuery event when I type.  Here is a Fiddle Demo

demo result
For the demo, I just copied your code directly, and added the jQuery:
$('#f_email').on('keyup', function() {
  console.log('hello world');
});

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stkoontzAuthor Commented:
I don't know what was going on, but it's working now.  Thanks for the help!

Steve
zephyr_hex (Megan)DeveloperCommented:
Glad you were able to get it working.
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