i want to set counter which automatically increment and decrements the value - dom

Question

I want to set counter which automatically ++ the value of name like this Email1 Email2 and so on by clicking add field button and further when i click on the remove button it should -- the value of Email in reverse like Email2 Email1 and so on below I'm using the code,
<div class="input_fields_wrap">
<div class="form-group">
<label>Email</label>
<button class="add_field_button">Add More Fields</button>
<input type="text" class="form-control" name="Email" value="<?php echo htmlspecialchars($team->email);?>" />
</div>
</div>
<script type="text/javascript">
$(document).ready(function() {
var max_fields = 20; //maximum input boxes allowed
var wrapper = $(".input_fields_wrap"); //Fields wrapper
var add_button = $(".add_field_button"); //Add button ID
var x = 1; //initlal text box count
$(add_button).click(function(e){ //on add input button click
e.preventDefault();
if(x < max_fields){ //max input box allowed
x++; //text box increment
$(wrapper).append('<div><input type="text" name="Email"/>Remove</div>'); //add input box
}
});
$(wrapper).on("click",".remove_field", function(e){ //user click on remove text
e.preventDefault(); $(this).parent('div').remove(); x--;
})
});
</script>
Email is the name of the text field and i want to to increment or decrement this name

Answer 1

Just changed following code:
<input type="text" class="del" id="' + name + '"/>
and
$(".del").last().parent('div').remove();
it will always remove the last element.
Following is the working code Just set the value of text box:
$(document).ready(function() {
var max_fields = 20; //maximum input boxes allowed
var wrapper = $(".input_fields_wrap"); //Fields wrapper
var add_button = $(".add_field_button"); //Add button ID
var x = 1; //initlal text box count
$(add_button).click(function(e){ //on add input button click
e.preventDefault();
if(x < max_fields){ //max input box allowed
x++; //text box increment
var name = "Email" + x;
$(wrapper).append('<div><input type="text" class="del" id="' + name + '"/>Remove</div>'); //add input box
}
});
$(wrapper).on("click", ".remove_field", function (e) { //user click on remove text
var removeLastName = "Email" + x;
e.preventDefault(); $(".del").last().parent('div').remove();
x--;
})
});