Set style.{left,top} as strings with explicit "px" suffix.
Set style.{left,top} as strings with explicit "px" suffix.

Setting style.left to an integer causes a problem for some browsers,
specifically it can cause the assignment to be a noop. Setting it as a
string with explicit units fixes the problem.

Incidentally, setting it this way appears to be 3-4 times faster than
setting an integer.

0x6e6562/diffa,0x6e6562/diffa,0x6e6562/diffa,aprescott/diffa,lshift/diffa,0x6e6562/diffa,aprescott/diffa,aprescott/diffa,lshift/diffa,lshift/diffa,lshift/diffa,lshift/diffa,aprescott/diffa