Code fading in and out captions

Is there any reason why some of these captions aren’t displaying? The scalpal, knife, and blade arent displaying all the others are fine, the code is basically the same the whole way through.

// OBJECT - FELT STRIP

feltstrip.onRollOver = function() {
this.onEnterFrame = function () {
caption._alpha += (100-caption._alpha)/3;
caption._x -= (caption._x-_xmouse)/2;
caption._y -= (caption._y-_ymouse)/2;
}
};
feltstrip.onRollOut = function() {
this.onEnterFrame = function() {
caption._alpha += (0-caption._alpha)/3;
};
;}

// OBJECT - HOUSING

housing.onRollOver = function() {
this.onEnterFrame = function () {
caption2._alpha += (100-caption2._alpha)/3;
caption2._x -= (caption2._x-_xmouse)/2;
caption2._y -= (caption2._y-_ymouse)/2;
}
};
housing.onRollOut = function() {
this.onEnterFrame = function() {
caption2._alpha += (0-caption2._alpha)/3;
};
};

// OBJECT - KNIFE

knife.onRollOver = function() {
this.onEnterFrame = function () {
caption3._alpha += (100-caption3._alpha)/3;
caption3._x -= (caption3._x-_xmouse)/2;
caption3._y -= (caption3._y-_ymouse)/2;
}
};
knife.onRollOut = function() {
this.onEnterFrame = function() {
caption3._alpha += (0-caption3._alpha)/3;
};
};

// OBJECT - PENCIL

pencil.onRollOver = function() {
this.onEnterFrame = function () {
caption4._alpha += (100-caption4._alpha)/3;
caption4._x -= (caption4._x-_xmouse)/2;
caption4._y -= (caption4._y-_ymouse)/2;
}
};
pencil.onRollOut = function() {
this.onEnterFrame = function() {
caption4._alpha += (0-caption4._alpha)/3;
};
};

// OBJECT - SCALPAL

scalpal.onRollOver = function() {
this.onEnterFrame = function () {
caption5._alpha += (100-caption5._alpha)/3;
caption5._x -= (caption5._x-_xmouse)/2;
caption5._y -= (caption5._y-_ymouse)/2;
}
};
scalpal.onRollOut = function() {
this.onEnterFrame = function() {
caption5._alpha += (0-caption5._alpha)/3;
};
};

// OBJECT - BLADE

blade.onRollOver = function() {
this.onEnterFrame = function () {
caption6._alpha += (100-caption6._alpha)/3;
caption6._x -= (caption6._x-_xmouse)/2;
caption6._y -= (caption6._y-_ymouse)/2;
}
};
blade.onRollOut = function() {
this.onEnterFrame = function() {
caption6._alpha += (0-caption6._alpha)/3;
};
};

stop();