Remeber button click with a cookie or localstorage

[zazu]

Hey guys i have 2 buttons that i hide and show depending on users click. What i want to do is when a user click first button to rememeber in a cookie that the button is clicked and show the secound button and viceversa. My js code that i;m using right now is posted bellow. How can i do this? Thank you very much!

  var first = document.getElementById( 'first' ),
    second = document.getElementById( 'second' );

function toggle() {

    if ( first.style.display === "block" ) {

        first.style.display = "none";
        second.style.display = "block";

    } else { // switch back

        first.style.display = "block";
        second.style.display = "none";

    }

}


first.onclick = toggle;
second.onclick = toggle;

[requinix]

Use Javascript to set (and possibly get) a cookie.