code to update level repeats how do i call and hold the funtion

code to update level repeats how do i call and hold the function

once i apply this script my level increases at frame rate what have i done wrong

//Variable For Experience *** var curExperienceu :float; var ExpBarEmtey = 0; var ExpBarCur : float; var screenHeight : float; static var ExpPart = 25; var curLevelu : float; var LvMax : float; private var checkexp : float;

var Lv0 = 12; var Lv1 = 18; var Lv2 = 28; var Lv3 = 42; var Lv4 = 78; var Lv5 = 156; var Lv6 = 330; var Lv7 = 800; var Lv8 = 1760; var Lv9 = 4110; var Lv10 = 8670; function Start () {

// gameObject.GetComponent("PlayerStatus").curLevel();

}

function Update () { curExperienceu =(PlayerStatus.curExperience); curLevelu = PlayerStatus.curLevel; checkexp = curExperienceu;

// if stored xp is if (curExperienceu >= checkexp){ // Here is the level decider. If the current exp is higher then the number there then you +1 level. switch(curLevelu){ case 0: if(curExperienceu <= Lv0){ PlayerStatus.curLevel += 0; } case 1: if(curExperienceu >= Lv1){ PlayerStatus.curLevel += 1; PlayerStatus.LvMax = Lv1; } break; case 2: if(curExperienceu >= Lv2){ PlayerStatus.curLevel += 1; PlayerStatus.LvMax = Lv2;

      }
    break;
    case 3:
    if(curExperienceu >= Lv3){
      PlayerStatus.curLevel += 1;
      PlayerStatus.LvMax = Lv3;
      }    
   break;
    case 4:
     if(curExperienceu >= Lv4){
      PlayerStatus.curLevel += 1;
      PlayerStatus. LvMax = Lv4;
      }
   break;
    case 5:
    if(curExperienceu >= Lv5){
      PlayerStatus.curLevel += 1;
      PlayerStatus.LvMax = Lv5;
      }
    break;
    case 6:
    if(curExperienceu >= Lv6){
      PlayerStatus.curLevel += 1;
      PlayerStatus.LvMax = Lv6;

      }
    break;
    case 7:
     if(curExperienceu >= Lv7){
     PlayerStatus.curLevel += 1;
     PlayerStatus.LvMax = Lv7;
      }
    break;
    case 8:
     if(curExperienceu >= Lv8){
      PlayerStatus.curLevel += 1;
     PlayerStatus.LvMax = Lv8;
     }
   break;
    case 9:
     if(curExperienceu >= Lv9){
      PlayerStatus.curLevel += 1;
    PlayerStatus.LvMax = Lv9;
      }
    break;
    case 10:
     if(curExperienceu >= Lv10){
      PlayerStatus.curLevel += 1;
      PlayerStatus.LvMax = Lv10;        
      }
    break;

} if (curExperienceu == checkexp){ } } }