anchor.diff:        <div id="extra_organism_details" style="display:none;">
           <div class="association_step">
             <b>Step 2</b> - Select method of culture growth (optional)<br/><br/>
  -          <%= select_tag "specimen[culture_growth_type_id]",culture_growth_options ,{:onchange=>"check_show_which_fields();"}-%>
  +          <%= select_tag "specimen[culture_growth_type_id]",culture_growth_options ,{:onchange=>"check_show_which_fields();return(false);"}-%>
             <br/>
            <div id="fields_for_cultured_cell_line_and_primary_cell_culture" style="display:none;">
              <table id="table1" border="1" cellpadding="10" >
  
positive.code:         }else{
             div1.style.display = 'none';
             div2.style.display='none';
            // clearTable1();
            // clearTable2();
  
          }
         }
  
negative.code:         Effect.Appear('extra_organism_details');
        }
      }
  
  
      function check_show_which_fields(){
          if($F('specimen_culture_growth_type_id')){
  