[jQuery] mark a td when left mouse button is pressed

[jQuery] mark a td when left mouse button is pressed


Hi,
how can i mark/unmark (toggleClass) a td when:
a) I press the left mouse button
b) Press the left mouse button and move over all tds (fast selection)
a) is not so much of a problem, but how would I realize b) and in a
way it is not interffering with a)
melwood