function return2tab (div)
{
    document.addEventListener('keydown', function (ev) {
        if (ev.key === "Enter" && ev.target.nodeName === 'INPUT') {

            var focusableElementsString = 'a[href], area[href], input:not([disabled]), select:not([disabled]), textarea:not([disabled]), button:not([disabled]), iframe, object, embed, [tabindex="0"], [contenteditable]';

            let ol= div.querySelectorAll(focusableElementsString);

            for (let i=0; i