Dynamic Alternatives
City, St Zip

Date: Mon, 25 Mar 2002 17:23:44 -0800

Mr. Rod Welch
The Welch Company
440 Davis Court #1602
San Francisco, CA 94111 2496
Subject:   SDS and Purple numbers


[Responding to your letter dated March 20, 2001 notifying that a redundant link feature has been added to SDS to facilitate communication through increased addressability... ]
You asked "How does it work?

As you can see, quite well!

Accessing links is much easier since I never have to leave the browser.

As to handling an onmouseOver event as suggested,



...it will still be necessary to have some sort of target for the mouse to be "over", but the net result is that the anchors can be made to do nearly anything deemed useful with the JavaScript events.
Since there is no need to make paper copies of SDS records, the targets for the anchors do not have to be human readable. The double dots work quite well. They are unobtrusive and still allow simple copying of the link. Very nice.

As you point out at...


it is not necessary to convert all SDS records at once so long as they are converted when "touched". Those records that are used will be current, and the others don't need to be.
Having the targets available in the foundation documents such as POIMS...


...makes commentary very much easier. I had to struggle to reference these documents in my first attempt to comment on them, since there weren't even invisible targets for the most part. Making the links accessible increases the usefulness of the SDS records and documents on the internet.
I am happy to provide the irritant that brought this change about!

I will take a look at my sample files to see the difficulties you describe at

I don't know why there should be any problem, and since it triggered a better approach it is now moot, but I will see what happened.