"How to" Guideline series is coordinated by Helen Mongan-Rallis of the Education Department at the University of Minnesota Duluth. If you have any questions, comments, or suggestions to improve these guidelines please me at e-mail firstname.lastname@example.org.
This is a special code that you add to your web page that tells the browser to go and get a special set of information from another file and include it with the current page. This special set of information is usually information that you repeat across a number of pages and/or information that you may need to update often. Thus, every page that has this library object on it will show this same information. When you change the information (change the code on just this one page), all these pages will be updated. This makes using a library object a great time saves if you have a number of pages (files) in your site that use the same information. Example of items you might want to make into library objects: Page logo or banner; disability statement on course syllabi; your office address and phone number.
Caution: If you change the library object, you have to upload every page that is affected by it when you make any changes to the library object. This is not too much of a problem in Dreamweaver because (1) When you make a change to the Library Object, Dreamweaver will prompt you and ask you if you want to update all affected pages. If you say yes, (which you should!) then Dreamweaver makes all updates for you (2) When you have made a change that affects multiple pages, you can use the Site --> synchronize command (see details later under Site Synchronization) and Dreamweaver will check and list all the pages that you have changed and that need to be uploaded.
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