Can someone give me an example of adding a tooltip whenever I hover a td in a table.
The content of the tooltip must come from database records.
Example:
If I hover A name on a table.. the tooltip must display his/her information.
Use the title attribute:
<table>
<tr>
<td>
<a href="#" title="John Smith lives in New York."> John Smith </a>
</td>
</tr>
</table>
Live demo: http://jsfiddle.net/GpU5f/
You'll get a tooltip on hover if you add 'title="whatever"' to the <td>:
<tr><td title="whatever">hover here to see "whatever" in a tooltip</td>
Where the title content comes from is a different and perhaps more difficult story, but perhaps you can arrange for the program code that is providing the cell's innerText to do the same for the cell's title=....
HTH
-- pete
since the original question was tagged jquery and none of the examples mention this (however trivial), it's just a matter of
$(tdSelector).attr('title', titleText);