sendAndLoad - duplicity record

programming flash
1

I use this code and send vars to the ASP -> database.
I click only once the submit btn, but I have 2 same records in my database.

What I have wrong?

// bSubmit btn action
var submit_listener:Object = new Object ();
submit_listener.click = function (evt:Object)
{
	// send variables to ASP page and save new entry to database
	var result_lv:LoadVars = new LoadVars ();
	result_lv.onLoad = function (success:Boolean)
	{
		if (success)
		{
			trace (mySendVars.toString ());
			msg.text = "SENDED.";
		}
		else
		{
			msg.text = "NOT Sended.";
		}
	};
	var mySendVars:LoadVars = new LoadVars ();
	mySendVars.gname = gname.text;
	mySendVars.gmail = gmail.text;
	mySendVars.gfrom = gfrom.text;
	mySendVars.gmsg = gmsg.text;
	//
	mySendVars.sendAndLoad ("new_entry_guestbook.asp", result_lv, "POST");
};
bSubmit.addEventListener ("click", submit_listener);