is there any script to cancel buff?

[azu]

wanna roll a dwarf rogue
and i need a macro to deal with certain situation
stoneform to get rid of poison/bleed -> cancel stoneform to get to normal speed

im not familiar with script language
can anyone help?

[ijustwantaname]

You don't need a script for this, Blizz already included the ability to right-click on a buff to dispell it.

[Kragus]

I'm guessing that he wants a script to turn on and off stoneform with one click.

You might try looking here:
http://www.cosmosui.org/texts/BlizzardCommands.xml

CancelPlayerBuff(index) might be what you want.