a. Layout View - you can build page layout, insert graphics, & other media.

b. Standard View - as well to insert graphics text & media, you can also add layers, create frame documents, and create tables & other options not in layout view

2. A rollover image is an image whose display modified while the pointer passes ("roll") over it. A rollover image contains two images - the image displayed when the page first loads in the browser and the image displayed when the pointer moves onto the original image. To create a rollover image, do the following:

• In the common category of the object panel, insert Rollover Image Icon.
• Choose Insert > Interactive Image > Rollover Image.
• Insert the Insert Rollover Image Dialog box, type name of the Image in Image Name Field.
• In the original Image field, select the image to display when the page loads.
• In the Rollover Image field, select the Image to display when the mouse pointer is over the original Image.
• Preload Rollover Image should be selected to load the rollover image when the page when the page is initially loaded to avoid delays.
• Click on OK to close the dialog box.