How to remove apex.widget.waitPopup() when ui dialog opens

Question

I need to remove waitPopup() when "value required" error is displayed. (Correct errors before saving.) Do you have any suggestions?

I have DA Before Page Submit:

$('body').append('<div class="apex_wait_overlay"/>');
vWait = apex.widget.waitPopup();

I already have remove when validation error appears. (jQuery Selector -> #APEX_ERROR_MESSAGE)

try{
  vWait.remove();
  $('body').children('div.apex_wait_overlay').remove(); 
}
catch(e){}

It would be nice if it was possible on ui dialog too.

waitPopup blocks clicking on dialog

Thanks