martinkariuki7/dynamicform.html

## dynamicform.html
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
                    "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
    <title></title>
    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.3/jquery.min.js"></script>

    <script type="text/javascript">
        $(document).ready(function() {
            $('#btnAdd').click(function() {
                var num     = $('.clonedInput').length; // how many "duplicatable" input fields we currently have
                var newNum  = new Number(num + 1);      // the numeric ID of the new input field being added

                // create the new element via clone(), and manipulate it's ID using newNum value
                var newElem = $('#input' + num).clone().attr('id', 'input' + newNum);

                // manipulate the name/id values of the input inside the new element
                newElem.children(':first').attr('id', 'name' + newNum).attr('name', 'name' + newNum);

                // insert the new element after the last "duplicatable" input field
                $('#input' + num).after(newElem);

                // enable the "remove" button
                $('#btnDel').attr('disabled','');
				$('#fieldnumber').val(num+1);

                // business rule: you can only add 5 names
                if (newNum == 5)
                    $('#btnAdd').attr('disabled','disabled');
            });

            $('#btnDel').click(function() {
                var num = $('.clonedInput').length; // how many "duplicatable" input fields we currently have
                $('#input' + num).remove();     // remove the last element

                // enable the "add" button
                $('#btnAdd').attr('disabled','');

				//Take one from value of hidden field
 				$('#fieldnumber').val(num-1);

                // if only one element remains, disable the "remove" button
                if (num-1 == 1)
                    $('#btnDel').attr('disabled','disabled');
            });

            $('#btnDel').attr('disabled','disabled');
        });
    </script>
</head>

<body>

<form id="myForm">
    <div id="input1" style="margin-bottom:4px;" class="clonedInput">
        Name: <input type="text" name="name1" id="name1" />
    </div>

    <div>
        <input type="button" id="btnAdd" value="add another name" />
        <input type="button" id="btnDel" value="remove name" />
		<input type="hidden" id="fieldnumber" value="1">
    </div>
</form>

</body>
</html>
	<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
	"http://www.w3.org/TR/html4/loose.dtd">
	<html>
	<head>
	<title></title>
	<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.3/jquery.min.js"></script>

	<script type="text/javascript">
	$(document).ready(function() {
	$('#btnAdd').click(function() {
	var num = $('.clonedInput').length; // how many "duplicatable" input fields we currently have
	var newNum = new Number(num + 1); // the numeric ID of the new input field being added

	// create the new element via clone(), and manipulate it's ID using newNum value
	var newElem = $('#input' + num).clone().attr('id', 'input' + newNum);

	// manipulate the name/id values of the input inside the new element
	newElem.children(':first').attr('id', 'name' + newNum).attr('name', 'name' + newNum);

	// insert the new element after the last "duplicatable" input field
	$('#input' + num).after(newElem);

	// enable the "remove" button
	$('#btnDel').attr('disabled','');
	$('#fieldnumber').val(num+1);

	// business rule: you can only add 5 names
	if (newNum == 5)
	$('#btnAdd').attr('disabled','disabled');
	});

	$('#btnDel').click(function() {
	var num = $('.clonedInput').length; // how many "duplicatable" input fields we currently have
	$('#input' + num).remove(); // remove the last element

	// enable the "add" button
	$('#btnAdd').attr('disabled','');

	//Take one from value of hidden field
	$('#fieldnumber').val(num-1);

	// if only one element remains, disable the "remove" button
	if (num-1 == 1)
	$('#btnDel').attr('disabled','disabled');
	});

	$('#btnDel').attr('disabled','disabled');
	});
	</script>
	</head>

	<body>

	<form id="myForm">
	<div id="input1" style="margin-bottom:4px;" class="clonedInput">
	Name: <input type="text" name="name1" id="name1" />
	</div>

	<div>
	<input type="button" id="btnAdd" value="add another name" />
	<input type="button" id="btnDel" value="remove name" />
	<input type="hidden" id="fieldnumber" value="1">
	</div>
	</form>

	</body>
	</html>