getting the parent div of a button

I am trying to get the parent div of the 'button1' and enable all the inputs in that div (I currently have them disabled'

<div id="wrapper">
<div id="gameInfo">
<asp:TextBox ID="gameTitle"/>
<asp:TextBox ID="gameType" />
<asp:TextBox ID="gameprice"/>
<input type="button" id="button1" value="enable" onClick="myFunc()"/>
</div>

javascript:

function myFunc() {
            setTimeout(function () {
                var inputs = document.getElementById("button1").parentNode.querySelectorAll('input[type="text"]');
                [].forEach.call(inputs, function (input) {
                    input.disabled = false;
                });
            });
        }

I am trying to get the parent node of button1 and then I'm not really sure of the correct way of doing it but I want all the inputs in that parent div of the button to enable but only of the parent div of the button I clicked. Any suggestions?