Alaska Law on Wills

Who may make a will. Any person 18 or more years of age who is of sound mind may make a will. Alaska Code Section 13.12.501.

Execution and signature of will; witnesses. Every will shall be in writing signed by the testator or in the testator's name by some other person in the testator's presence and by his direction, and shall be signed by at least two persons each of whom witnessed either the signing or the testator's acknowledgment of the signature or of the will. Alaska Code Section 13.12.502.

(1) in writing;

(2) signed by the testator or in the testator's name by another individual in the testator's conscious presence and by the testator's direction; and

(3) signed by at least two individuals, each of whom signs within a reasonable time after the witness witnesses either the signing of the will as described in (2) of this subsection or the testator's acknowledgment of that signature or the will.

More information: http://www.touchngo.com/lglcntr/akstats/Statutes/Title13/Chapter12.htm

Definition's:
A holographic will is a will and testament that has been entirely handwritten and signed by the testator.
A testator is a person who has written and executed a last will and testament that is in effect at the time of his/her death.^[1] It is any "person who makes a will."