public override bool Initialize( bool enableSorting, Control control )
{
string script = @"
$('.grid-table tr td span.date-field').tooltip({html: true, container: 'body', delay: { show: 100, hide: 100 }});
$('.grid-table tr td span.date-field').click( function(){ $(this).tooltip('hide'); });;
";
ScriptManager.RegisterStartupScript( control, control.GetType(), "date-field-popover", script, true );
return base.Initialize( enableSorting, control );
}