Welcome!

Adobe Flex Authors: Matthew Lobas, PR.com Newswire, Shelly Palmer, Kevin Benedict

Related Topics: Adobe Flex

Adobe Flex: Article

Harnessing Adobe's Web Bundle: Dreamweaver For Beginners

Creating Dynamic Layers in DW with Interactive Image Rollovers

Layers are a special kind of HTML elements that can be used as a container to hold other HTML elements and to show them dynamically using JavaScripts. We can stack more than one layer on top of each other. One or more layer can be made visible dynamically, by hiding others. But using Macromedia Dreamweaver you can do all this without even knowing JavaScript or coding.

In this tutorial we are going to use multiple layers stacked over one another, and make it viewable, when you mouseover an image. In this case study I have taken 2 rollover images: Image1, Image 2, and three layers: Layer1, Layer2 and Layer3.

When we mouse over on the Image1, the second layer will appear while Layer1 and Layer 3 will be hidden along with its content. Likewise for the Image 3, Layer1 and 2 will be hidden and only Layer3 will appear with its content. When we mouse out from the images, Layer 1 will come up again.

To achieve this follow the steps and enjoy!

1.  Creating rollover Images
First as I said let us create 2 Images. We can use Macromedia Fireworks to create the images. In our case I have designed 4 buttons; 2 for the up state and 2 for the down state.

After designing the buttons, open a new page in Dreamweaver and create a 2X1 table. Now Insert the images using, Insert>Interactive Images>Rollover Image. Browse and select the first one for the up state and the second one for the down state. ( I am assuming you have put the images in the proper folder.)

Now do the same for the next image, so that both the images are in the first column of the table as shown in this example.

2.  Placing Layers
Open Insert>Layer and place the Layer1. Move the layer into column2 of the table. Now you can write the content inside the Layer. Select the layer in the Properties Inspector and select Overflow as 'visible'. This makes this first layer the default layer and makes it visible while the page is being loaded.

Note down the position of the Layer (566px and 163px). Insert the second and third layers on the same position, so that they will sit over the first layer.

Now insert the text on those layers. (Note: Due to the overlapping of layers the text may not be clear. So, you can place the layers somewhere else, write down the text and then change the position of the layers to sit on the same position as the first layer.)

3.  Changing the Layer Properties
Select Window>Layers. You will get the Layer Inspector, with all the three layer details. Select Layer2 and Layer3 and if the eye is open click on it to close it for both of them. In the properties Inspector you can see the OverFlow is selected as hidden for Layer2 and Layer3. This enables Layer2 and 3 to be hidden while the page is loaded.

4.  Adding Behaviors
Now select the Image1 where we are going to add the dynamic Layer effects. Then Open Window > Behavior. You can see the Events and actions created by Dreamweaver for the Rollover Images which we did in step 1.

Click on the button and select "Show-hide Layers". You will get this box to 'Show or Hide" the Layers.

Now do the following:
a. Select Layer1 than click on 'Hide'
b. Select Layer2 and click on 'Show' then,
c. Select Layer3 and click on 'Hide'.

This action will make Layer1 and 3 disappear and show Layer2 whenever you mouseover Image1.

You can also see the new JavaScript events created by Dreamweaver in the Behaviors Inspector. Here the new onMouseOver and onMouseOut with Show-hide Layers as actions.

Note here that you can use other events also as you like. For example instead of onMouseOver you can use onClick. To do this you need to click on the tiny black, inverted arrow next to the event. Use this to select other events, ie OnClick, Down etc.,.

At the foot of the list there is a category which allows you to choose which browsers to support, make sure a check is next to 4 and higher browsers. (Only after choosing the browser 4 or higher you will be able to see all the Events in a list)

Follow step 4 by selecting Image2. Then,
a. Select Layer1 than click on 'Hide';
b. Select Layer2 and click on 'Hide' then,
c. Select Layer3 and click on 'Show'.

This action will make the Layer1 and Layer2 disappear and show Layer2 while you move your mouse over Image1.

5.  Bringing Default Layer Again
Now as a final step, you need to bring back Layer1 when you move your mouse out of the Image (or when you mouse away from the images to somewhere on that page). Select Image1 and click on the button and select "Show-hide Layers". You will get a box to 'Show or Hide" the Layers.

Now do the following...
a. Select Layer1 than click on 'Show'
b. Select Layer2 and click on 'Hide' then,
c. Select Layer3 and click on 'Hide'.

This action will make Layer2 and Layer3 disappear and show Layer1 while you move your mouse out of the Image1. Also do not forget to change the Events to onMouseOut.

Repeat step 5 with Image2 also. Now you should get the Behavior Inspector like this Image, showing all the Events for both Image1 & Image2.

More Stories By Benny Alexander

Benny Alexander is lead developer with Macronimous.com, an offshore web design company focusing on quality Web and PDA application development services at low costs and serving the needs of small to medium businesses.

Comments (0)

Share your thoughts on this story.

Add your comment
You must be signed in to add a comment. Sign-in | Register

In accordance with our Comment Policy, we encourage comments that are on topic, relevant and to-the-point. We will remove comments that include profanity, personal attacks, racial slurs, threats of violence, or other inappropriate material that violates our Terms and Conditions, and will block users who make repeated violations. We ask all readers to expect diversity of opinion and to treat one another with dignity and respect.


@ThingsExpo Stories
Basho Technologies has announced the latest release of Basho Riak TS, version 1.3. Riak TS is an enterprise-grade NoSQL database optimized for Internet of Things (IoT). The open source version enables developers to download the software for free and use it in production as well as make contributions to the code and develop applications around Riak TS. Enhancements to Riak TS make it quick, easy and cost-effective to spin up an instance to test new ideas and build IoT applications. In addition to...
There are several IoTs: the Industrial Internet, Consumer Wearables, Wearables and Healthcare, Supply Chains, and the movement toward Smart Grids, Cities, Regions, and Nations. There are competing communications standards every step of the way, a bewildering array of sensors and devices, and an entire world of competing data analytics platforms. To some this appears to be chaos. In this power panel at @ThingsExpo, moderated by Conference Chair Roger Strukhoff, Bradley Holt, Developer Advocate a...
Presidio has received the 2015 EMC Partner Services Quality Award from EMC Corporation for achieving outstanding service excellence and customer satisfaction as measured by the EMC Partner Services Quality (PSQ) program. Presidio was also honored as the 2015 EMC Americas Marketing Excellence Partner of the Year and 2015 Mid-Market East Partner of the Year. The EMC PSQ program is a project-specific survey program designed for partners with Service Partner designations to solicit customer feedbac...
Connected devices and the industrial internet are growing exponentially every year with Cisco expecting 50 billion devices to be in operation by 2020. In this period of growth, location-based insights are becoming invaluable to many businesses as they adopt new connected technologies. Knowing when and where these devices connect from is critical for a number of scenarios in supply chain management, disaster management, emergency response, M2M, location marketing and more. In his session at @Th...
The cloud market growth today is largely in public clouds. While there is a lot of spend in IT departments in virtualization, these aren’t yet translating into a true “cloud” experience within the enterprise. What is stopping the growth of the “private cloud” market? In his general session at 18th Cloud Expo, Nara Rajagopalan, CEO of Accelerite, explored the challenges in deploying, managing, and getting adoption for a private cloud within an enterprise. What are the key differences between wh...
A strange thing is happening along the way to the Internet of Things, namely far too many devices to work with and manage. It has become clear that we'll need much higher efficiency user experiences that can allow us to more easily and scalably work with the thousands of devices that will soon be in each of our lives. Enter the conversational interface revolution, combining bots we can literally talk with, gesture to, and even direct with our thoughts, with embedded artificial intelligence, wh...
Cloud computing is being adopted in one form or another by 94% of enterprises today. Tens of billions of new devices are being connected to The Internet of Things. And Big Data is driving this bus. An exponential increase is expected in the amount of information being processed, managed, analyzed, and acted upon by enterprise IT. This amazing is not part of some distant future - it is happening today. One report shows a 650% increase in enterprise data by 2020. Other estimates are even higher....
SYS-CON Events announced today that Bsquare has been named “Silver Sponsor” of SYS-CON's @ThingsExpo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. For more than two decades, Bsquare has helped its customers extract business value from a broad array of physical assets by making them intelligent, connecting them, and using the data they generate to optimize business processes.
19th Cloud Expo, taking place November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, will feature technical sessions from a rock star conference faculty and the leading industry players in the world. Cloud computing is now being embraced by a majority of enterprises of all sizes. Yesterday's debate about public vs. private has transformed into the reality of hybrid cloud: a recent survey shows that 74% of enterprises have a hybrid cloud strategy. Meanwhile, 94% of enterpri...
Internet of @ThingsExpo, taking place November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 19th Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The Internet of Things (IoT) is the most profound change in personal and enterprise IT since the creation of the Worldwide Web more than 20 years ago. All major researchers estimate there will be tens of billions devices - comp...
It is one thing to build single industrial IoT applications, but what will it take to build the Smart Cities and truly society changing applications of the future? The technology won’t be the problem, it will be the number of parties that need to work together and be aligned in their motivation to succeed. In his Day 2 Keynote at @ThingsExpo, Henrik Kenani Dahlgren, Portfolio Marketing Manager at Ericsson, discussed how to plan to cooperate, partner, and form lasting all-star teams to change t...
The 19th International Cloud Expo has announced that its Call for Papers is open. Cloud Expo, to be held November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, brings together Cloud Computing, Big Data, Internet of Things, DevOps, Digital Transformation, Microservices and WebRTC to one location. With cloud computing driving a higher percentage of enterprise IT budgets every year, it becomes increasingly important to plant your flag in this fast-expanding business opportuni...
Internet of @ThingsExpo, taking place November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with the 19th International Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world and ThingsExpo Silicon Valley Call for Papers is now open.
There is little doubt that Big Data solutions will have an increasing role in the Enterprise IT mainstream over time. Big Data at Cloud Expo - to be held November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA - has announced its Call for Papers is open. Cloud computing is being adopted in one form or another by 94% of enterprises today. Tens of billions of new devices are being connected to The Internet of Things. And Big Data is driving this bus. An exponential increase is...
In his general session at 18th Cloud Expo, Lee Atchison, Principal Cloud Architect and Advocate at New Relic, discussed cloud as a ‘better data center’ and how it adds new capacity (faster) and improves application availability (redundancy). The cloud is a ‘Dynamic Tool for Dynamic Apps’ and resource allocation is an integral part of your application architecture, so use only the resources you need and allocate /de-allocate resources on the fly.
In his keynote at 18th Cloud Expo, Andrew Keys, Co-Founder of ConsenSys Enterprise, provided an overview of the evolution of the Internet and the Database and the future of their combination – the Blockchain. Andrew Keys is Co-Founder of ConsenSys Enterprise. He comes to ConsenSys Enterprise with capital markets, technology and entrepreneurial experience. Previously, he worked for UBS investment bank in equities analysis. Later, he was responsible for the creation and distribution of life sett...
Machine Learning helps make complex systems more efficient. By applying advanced Machine Learning techniques such as Cognitive Fingerprinting, wind project operators can utilize these tools to learn from collected data, detect regular patterns, and optimize their own operations. In his session at 18th Cloud Expo, Stuart Gillen, Director of Business Development at SparkCognition, discussed how research has demonstrated the value of Machine Learning in delivering next generation analytics to imp...
Cognitive Computing is becoming the foundation for a new generation of solutions that have the potential to transform business. Unlike traditional approaches to building solutions, a cognitive computing approach allows the data to help determine the way applications are designed. This contrasts with conventional software development that begins with defining logic based on the current way a business operates. In her session at 18th Cloud Expo, Judith S. Hurwitz, President and CEO of Hurwitz & ...
SYS-CON Events announced today that ReadyTalk, a leading provider of online conferencing and webinar services, has been named Vendor Presentation Sponsor at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. ReadyTalk delivers audio and web conferencing services that inspire collaboration and enable the Future of Work for today’s increasingly digital and mobile workforce. By combining intuitive, innovative tec...
Amazon has gradually rolled out parts of its IoT offerings, but these are just the tip of the iceberg. In addition to optimizing their backend AWS offerings, Amazon is laying the ground work to be a major force in IoT - especially in the connected home and office. In his session at @ThingsExpo, Chris Kocher, founder and managing director of Grey Heron, explained how Amazon is extending its reach to become a major force in IoT by building on its dominant cloud IoT platform, its Dash Button strat...