How to track a validation error in PL/SQL

Question

Is there a way in PL/SQL to track the fact that a page is rendered after a validation error?
I know there is condition type "Inline validation errors displayed" but
I would like to "translate" in PL/SQL expression. In case I would combine it with other PL/SQL expressions.
Thanks,
Marco

Answer 1

I try to show/hide a div depending on the occurence of errors. I resolved this problem by doing this in javascript.
function showEdu(){
$("#edu").animate({ height: 'show', opacity: 'show' }, 'slow');
$s('P6_EDU_SHOWN','Y');
function hideEdu(){
$("#edu").animate({ height: 'hide', opacity: 'hide' }, 'slow');
$s('P6_EDU_SHOWN','N');
function checkEduError(){
if($("span").hasClass("errTxt") == true)
{showEdu();}
else
if($v('P6_EDU_SHOWN') == 'Y')
{showEdu();}
else
{hideEdu();}
}