Adobe Dreamweaver CC 2015 - Manual (Page 302)

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Page content and assets
Last updated 6/3/2015
Create a rollover image
You can insert rollover images in your page. A rollover is an image that, when viewed in a browser, changes when the
pointer moves across it.
You must have two images to create the rollover: a primary image (the image displayed when the page first loads) and
a secondary image (the image that appears when the pointer moves over the primary image). Both images in a rollover
should be the same size; if the images are not the same size, Dreamweaver resizes the second image to match the
properties of the first image.
Rollover images are automatically set to respond to the onMouseOver event. You can set an image to respond to a
different event (for example, a mouse click) or change a rollover image.
1 In the Document window, place the insertion point where you want the rollover to appear.
2 Insert the rollover using one of these methods:
• In the Common category of the Insert panel, click the Images button and select the Rollover Image icon. With
the Rollover Image icon displayed in the Insert panel, you can drag the icon to the Document window.
• Select Insert > Image Objects > Rollover Image.
3 Set the options and click OK.
Image Name The name of the rollover image.
Original image The image you want to display when the page loads. Enter the path in the text box, or click Browse
and select the image.
Rollover Image The image you want to display when the pointer rolls over the original image. Enter the path or click
Browse to select the image.
Preload Rollover Image Preloads the images in the browser’s cache so no delay occurs when the user rolls the
pointer over the image.
Alternate Text (Optional) Text to describe the image for viewers using a text-only browser.
When clicked, Go to URL The file that you want to open when a user clicks the rollover image. Enter the path or click
Browse and select the file.
Note: If you don’t set a link for the image, Dreamweaver inserts a null link (#) in the HTML source code to which the
rollover behavior is attached. If you remove the null link, the rollover image will no longer work.
4 Select File > Preview in Browser or press F12.
5 In the browser, move the pointer over the original image to see the rollover image.
Note: You cannot see the effect of a rollover image in Design view.
Use an external image editor
While in Dreamweaver, you can open a selected image in an external image editor; when you return to Dreamweaver
after saving the edited image file, any changes you made to the image are visible in the Document window.
You can set up Fireworks as your primary external editor. You can also set which file types an editor opens; and you can
select multiple image editors. For example, you can set preferences to start Fireworks when you want to edit a GIF, and
to start a different image editor when you want to edit a JPG or JPEG.