i must create something like dictionary in my site, but there is one problem, i don't imagine ho to solve. the client wants the following:

in the CMS he must be able to write some specification to some words or even sentences, and after it, in the site, onmouseover() of that words, i must show it's specification in popup window.

for example, in the cms he writes "hello word" -> "specification of hello world", and then, in the site, if i have the text

many many words here hello world and another words...

onmouseover of "hello world" i must show "specification of hello world".

the problem, that i don't know how to solve, is how to write the functions on the text content? could you give me an idea...

Thanks