title: keep state of collapse and expand after page reload
body: <p>Inside an aspx page, there are five fieldset elements. Inside each fieldset next to the legend element, you can find a table element containing many rows. I have added toggle functionality to each legend element so that when you click the legend element the corresponding table collapses or expands. the problem is when you reload the page all tables are expanded. I want to keep the status of each table when the page is reloaded. appreciate any kind of advice.</p>