anchor.diff:  						}
   
   						d_pstmt.close();
  -					}
  -					else
  -					{
  -						%>
  -						<t:message type="danger" message="Duplicate name found. Please enter a unique category name."></t:message>
  -						<%	
  -					}
  -
  -					check_pstmt.close();
  -					check_rs.close();
   				}
   				catch(SQLException e){
   					e.printStackTrace();
  
positive.code: 	{
  			if(role.equals("Owner"))
  			{
  				try{					
  					PreparedStatement check_pstmt = conn.prepareStatement("SELECT name FROM categories");
  					String input_c_name = ""+request.getParameter("name");
  					ResultSet check_rs = check_pstmt.executeQuery();
  					
  					Boolean duplicate_name = false;
  					while(check_rs.next())
  					{
  						String rs_c_name = check_rs.getString("name").toLowerCase();
  						if(input_c_name.toLowerCase().equals(rs_c_name))
  							duplicate_name = true;	
  					}
  					
  					if(duplicate_name==false)
  					{
  						sql =	"UPDATE categories SET (name, img_url, description) = " +
  								"(?,?,?) WHERE category_id = ?";
  						d_pstmt = conn.prepareStatement(sql);
  
negative.code: 							<%
  							
  						}
  				}
  				
  				catch(SQLException e){
  