Insert Current Date if blank, static if not blank

[karenw19297174]

I have a form that I want to place the current date in the date field when you open the form.  Once the form is saved and I open it two days later, I do not want to have the date field reset to the new current date.  I want it to stay static but allow me to manually change it if I want.  How to do this and where do I write it?

Thank you in advance.

[Bernd Alheit]

Place the date when the field is empty.

[JR Boulay]

Hi

Place this script as a document level Javascript

if (this.getField("DateField").value == null || this.getField("DateField").value == "") {
    this.getField("DateField").value = util.printd("yyyy-mm-dd", new Date());
}

[karenw19297174]

It still reverts to current date if I save it with a different date.

[karenw19297174]

Nevermind....it works now....thank you so much.