identifier expected

im trying to create a health bar using a tutorial i found but at “public void AdjustcurHealth (adj)” it says identifier expected

tutorial: http://wiki.unity3d.com/index.php/Health_Bar_Tutorial

help?

UPDATE: ok i got that fixed but now i got a new problem it says Unexpected symbol `/’

public class healthbar : MonoBehaviour {
    	private int maxhealth = 100;
    	public int curHealth = 100;
    
    	private float healthBarLength;
    
    	// Use this for initialization
    	void Start () {
    		healthBarLength = Screen.width / 2;
    	}
    	
    	// Update is called once per frame
    	void Update () {
    		AdjustcurHealth(0);
    	}
    	void OnGUI (){
    		GUI.Box(new Rect(10,10, healthBarLength,20), curHealth.ToString "/" maxhealth.ToString);
    	}
    	public void AdjustcurHealth (adj) {
    		curHealth += adj;
    
    		if(curHealth > 0)
    			curHealth = 0;
    
    		if(curHealth > maxhealth)
    			curHealth = maxhealth;
    
    		if(maxhealth < 1)
    			maxhealth = 1;
    
    		healthBarLength = (Screen.width / 2) * (curHealth / (float)maxhealth);
    
    	}
    }

When declaring a function you need to specify argument type:

public void AdjustcurHealth (int adj)