if(document.querySelector('input[type=file]')) {
// query string exists
//
var button = document.querySelector('.gfield_description');
var input = document.querySelector('input[type=file]');
// Making input invisible, but leaving shown fo graceful degradation
input.style.display = 'none';
button.style.display = 'initial';
button.addEventListener('click', function (e) {
e.preventDefault();
input.click();
});
input.addEventListener('change', function () {
button.innerText = this.value;
});
} else {
// no query string exists
}
this selects athe output from the file selector and displays it on another div
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