help with error

Question

I'm getting the following error when I click an image button that should pop up a panel that holds a table with some text. Exception Details: System.FormatException: Input string was not in a correct format. Source Error: Line 24: 'If the Help is visible, but it is displayed for a different field Line 25: 'than the one selected, then hide it Line 26: If RegLoginHelp.Visible = True And Help1.Attributes.Item() Then Line 27: hideHelp() Line 28: End If Source File: C:\Inetpub\wwwroot\LessonPlannerV1\popUpHelp.ascx.vb Line: 26 RegLoginHelp is the panel id and Help1 is the table id.