Delaying a Mousestart message until script ends

[maxs]

Is there a way to delay the running of a Mousestart or mouseend message until the script of a previously clicked-on button has finished running? Or is there a way to cancel a script that has been running when I click on a different button?

iphoneClearTouches' command will clear the touch messages that may have accumulated, but not stop the script that is currently running. This is causing unwanted images to appear on my card.

Thanks, Max