Email submit

I have an email sign-up form that works fine. The only trouble is it immediately goes back to normal after you submit an email so you wonder if it really worked. It there a way to make a thank you message?

This is the code I’m using:

stop();
_root.fields.emailInput.text = "email address";
_root.fields.emailInput.onSetFocus = function() {
    if (this.text == "email address") {
        this.text = "";
    }
};
_root.fields.emailInput.onKillFocus = function() {
    if (this.text == "") {
        this.text = "email address";
    }
};
fscommand ("allowscale",false);
stop();

and on the submit button:

on (release) {
	_root.fields.loadVariables("email.php", "POST");
	_root.fields.emailInput.text = "email address";
	_root.fields.emailInput.hscroll = 0;
	_root.fields.emailInput.onSetFocus = function() {
		if (this.text == "email address") {
			this.text = "";
		}
	};
}