public function CheckCollition():void {
			if(posx - dobWidth/2 <= limitLeft)  {
				posx = limitLeft + dobWidth/2;
				vx = -vx;
			}
			if(posx + dobWidth/2 >= limitRight)  {
				posx = limitRight - dobWidth/2;
				vx = -vx;
			}
			if(posy - dobHeight/2 <= limitTop)  {
				posy = limitTop + dobHeight/2;
				vy = -vy;
			}
			if(posy + dobHeight/2 >= limitBottom)  {
				posy = limitBottom - dobHeight/2;
				vy = -vy;
				liv ++;
				fjerneLiv()
				}
			kule.hitTest(paddle);
			if (kule.hitTest(paddle)) {trace("COLLISION");}
			
		}