Dialog Display issues on long dashboard pages

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Hello, I'm working on a add on for 5.5 where users can create test. I'm having an issue with the dialog boxes though. When the page is long and I initiate a dialog box it scrolls the page down and places the dialog in the top portion of the page (see screenshot).

Here is the jQuery call.
function newMSField(qID) {
         $.fn.dialog.open({
            width: 500,
            height: 450,
            modal: false,
            href: '<?php  echo $uh->getToolsURL('field_multipleSelect','linchpinQuizzes'); ?>?qID='+qID,
            title: '<?php  echo t('Add a Multiple Select'); ?>'         
         });
      }

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