NGUI input and checkbox

[rottweiler]

Hello.
I have an input label and i get text for this from variable. But when i click on label text is disappear. When i input text in game and then click on iput label, text remains and i can easily change it. How make text not to disappear? For taking text from variable i use this:

1. var healthText : GameObject;
2. function Start () {
3. healthText.GetComponent(UILabel).text = health;
4. }

And another question. How control checbox state via script?

[ArenMook]

It's an option on the UIInput: useLabelTextAtStart.