How would you reccommend adding the jumping animation to my script?

 #pragma strict
 function PlayAnimation(AnimName : String) {
     if (!animation.IsPlaying(AnimName))
     animation.CrossFadeQueued(AnimName, 0.3, QueueMode.PlayNow);
     }
 
 function Update () {
     if (Input.GetAxis("Horizontal") == 0) {
         if (Input.GetAxis("Vertical") == 0) {
             PlayAnimation("ArmatureAction");
             }
         }
     if (Input.GetAxis("Horizontal") < 0) {
         PlayAnimation("walkL");
         }
     else if (Input.GetAxis("Horizontal") > 0) {
         PlayAnimation("walkR");
         }
     if (Input.GetAxis("Vertical") < 0) {
         PlayAnimation("walkB");
         }
     else if (Input.GetAxis("Vertical") > 0) {
         PlayAnimation("walkF");
         }
 }

No idea how to add the jumping animation. What I want is to play the jumping animation and freeze it at the end of the animation until the player touches the floor again. However, anything would be a step in the right direction. Right now the script has the right animations for walking.