Tooltip on checkbox object in table_column

Hai Experts,

i have a table with columns on a view within my webdynpro, one of the columns contains a checkbox without the text property filled. I want to add a tooltip on mouseover the checkbox.

I find out the tooltip is not shown in the browser allthought it is shown in se80.

When i add text to the checkbox the tooltip is shown in the browser on mouseover the text.

In my case i do want a plain checkbox without text and a tooltip on mouseover the checkbox, is this possible?!

Grtz Richard