How to prevent open new window while sandAndLoad

I want to send vars to one PHP page and I dont want to open restult in new win.
I want only send data to PHP and store it in my dtb.

How can I make it in the same window?

	var sendVars:LoadVars = new LoadVars ();
		sendVars.sendRegEmail = my_ti.text;
		sendVars.sendAndLoad ("register.php", sendVars, "POST");
		trace ("sendVars.sendRegEmail = " + sendVars.sendRegEmail);
                 my_ti.text = "Zaregistrováno!";