Making a sprite move to mouse click

Do you want to make a movieClip move to any point you click on the screen and are tired of all the Math.functions?Well,this is it.
First,draw your character i just used a square.
Convert it to a movieclip,name it whatever you like.No instance name needed for the square.draw a very small circle,this is to detect the mouse angle.Convert your small circle to a movieClip and give it the instance name"mu".Now lets move to the coding aspect,dont be scared,just a few if() statements and variables.thats all.Select your “mu” movieclip(small circle) and paste the following code:

onClipEvent (mouseDown) {:diss:
_x = _root._xmouse;
_y = _root._ymouse;
}

Go to your sprite movieClip and enter the follwoing:

onClipEvent (load) {
mu = _root.go;
speed = 5;
}
onClipEvent (enterFrame) {
if (_x<mu._x) {
_x +=speed;
}
if (_x>mu._x) {
_x -=speed;
}
if (_y>mu._y) {
_y -=speed;
}
if (_y<mu._y) {
_y +=speed;
}
}

Thats it all.
Hope its okay for a thirteen-yearold