Color change prototype delete please

1

Would someone be so kind as to add an “if statement” that will delete the onEnterFrame upon arrival at the new color in the following prototype? Thank you

MovieClip.prototype.fadeColor = function(cto, ease) {
var myColor = new Color(this), cColor = myColor.getTransform();
this.onEnterFrame = function() {
for (var c in cColor) {
cColor[c] += (cto[c]-cColor[c])/ease;
}
myColor.setTransform(cColor);
};
};