How to add the javascript in display tag sort event?

Hi i am using display tag to display the data. on clicki开发者_运维技巧ng on the table header link it should call the javascript and submits the page instead of navigation to it. how to do it?

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In the Onload of the page, seach for the sort column and add the script to submit the page as follows,

 $(document).ready(function() {
                    $('.sortable').each(function(event){ 
                     var obj = $(this).find('a').attr('href'); 
                var urltext = 'javascript:submitform("'+contextPath+'/'+obj+'\")';  
                $(this).find('a').attr('href', urltext);
            }); 
      });