Showing invisible elements lets you select and view them and change their properties in the Property inspector. A check mark next to the name of the element in the dialog box means the element is visible. Invisible Elements must be selected for the markers representing invisible elements to appear in the Document window. Scripts Displays an icon that marks the location of JavaScript or VBScript code in the body of the document. Select the icon to edit the script in the Property inspector or to link to an external script file.
Comments Displays an icon that marks the location of HTML comments.
Select the icon to see the comment in the Property inspector. The default setting for this option is off. Embedded Styles Displays an icon showing the location of styles embedded in the body of the document. If styles are placed in the head of a document, they will not appear in the Document window. Anchor Points for Layers Displays an icon that marks the location of code defining a layer.