Forcing attribute title tooltip

Forcing attribute title tooltip

I want to force a tooltip on a mouse click. I want to use the default yellow browser tooltip which normally appears when you mouse over an HTML item with a Title-attribute in it.

How it works right now is the user clicks on the label of a textfield and then a database call retrieves the tooltip information. Javascript then inserts this information as Title attribute.
However when you want to see this tooltip you need to move the mouse a little before it's triggered and I don't want that. It needs to be instant.

So is there a way to force it or simulate a mouse move. Ofcourse i don't want the users to notice anything.