How do I Reset Scene

I'm tring to Reset time after game is over and the counter goes to zero,I start the game in level select hitting the level 1 button it counts down fine to 000 but when I replay the Level 1 again the counter is still at 000 can some one help me Pleae????????

var aniFont1 : GameObject; // holds a sprite sheet - should be a number sheet 0-9 var aniFont2 : GameObject; // holds a sprite sheet - should be a number sheet 0-9 var aniFont3 : GameObject; // holds a sprite sheet - should be a number sheet 0-9

var playTime : float = 0.0; // playTime is the current time printed to screen - think of it like current game time var continueTimeDown : float = 0.0; // used to continue time down from stopped time var countDownDelay : float = 0.0; // used to delay time during counting var countDownAmount : float = 0; // amount to delay each time

var playTimeEnabled : boolean = true; // toggle for playTime var countDownEnabled : boolean = true; // toggle for countDown

function aniSprite ( spriteObject, columnSize, rowSize, colFrameStart, rowFrameStart, totalFrames, type:String) { var index : int = playTime; // to control frame location, playTime will equal the index count var font1 = ( index % 10 ); // font1 position var font2 = ( ( index - font1 ) / 10 ) % 10; // font2 position var font3 = ( ( index - font1 ) / 100 ) % 10; // font3 position

if ( type == "font1" ) index = font1; // check for which sprite sheet to use - font1 if ( type == "font2" ) index = font2; // check for which sprite sheet to use - font2 if ( type == "font3" ) index = font3; // check for which sprite sheet to use - font3 var size = Vector2 ( 1.0 / columnSize, 1.0 / rowSize ); // find scale to show on poly

var u = index % columnSize; // u cord separated from v, to find just the column and mod it var v = index / columnSize; // v finds location on row based on columnSize count var offset = Vector2 ( ( u + colFrameStart ) size.x, ( 1.0 - size.y ) - ( v + rowFrameStart ) size.y ); // offset uv's spriteObject.renderer.material.mainTextureOffset = offset; // apply the offset amount to the correct sprite sheet object spriteObject.renderer.material.mainTextureScale = size; // apply the scale amount to the correct sprite sheet object } function Update () { if (aniFont1 != null) aniSprite ( aniFont1, 10, 1, 0, 0, 10, "font1" ); // animated font sprite - type: font1 if (aniFont2 != null) aniSprite ( aniFont2, 10, 1, 0, 0, 10, "font2" ); // animated font sprite - type: font2 if (aniFont3 != null) aniSprite ( aniFont3, 10, 1, 0, 0, 10, "font3" ); // animated font sprite - type: font3

if ( playTimeEnabled && countDownEnabled ) // if countDown enabled, then use this for playTime { playTime = countDownDelay - Time.time + countDownAmount + continueTimeDown; // get playTime start } if ( playTime <= 0 ) // simple stop for countDown { playTimeEnabled = false; // stop timer - playTime countDownEnabled = false; // stop timer - countDown } }