Hovering Help

Hi , i searched kirupa’s tutorial database and i found the telltarget’s hovering and it’s really useful , but there is one problem . Let’s say i have a button and a text , if i roll over my button the text will fade in , if i roll out it will fade out . but if i roll over the button again before the fade in and out is completed , it will go back to the starting , is there anyway i can stop this ?