bPopup opens centre-aligned in one page and left-aligned in other

by NishitDhakar

HTML

<script src="http://dinbror.dk/downloads/jquery.bpopup-0.9.4.js"></script>
<div id="divAlert"></div>
<div>
<button id="btnSave">Save Click</button>
</div>

JavaScript

$(document).ready(function () {

        $("#btnSave").click(
            function () {
                OpenCompareRequestPrintWindow();
            }            
        );
    });

function OpenCompareRequestPrintWindow() {
    var x = 20;
    var y = 50;
    jQuery('#divAlert').empty();
    jQuery('#divAlert').append('<div id="popup"><span class="buttonPopup b-close"><span>X</span></span> Hi </div>');
    $('#divAlert').bPopup({
        follow: [true, true], //x, y
        position: [x, y], //x, y
        easing: 'easeOutBack', //uses jQuery easing plugin
        speed: 450,
        transition: 'slideDown'
    });
}