<form action="">
<button type="button">Выбрать</button>
<input name="f" type="file" multiple></input>
<input name="t" type="text"></input>
</form>[type="file"] {
display: none;
}$(document)
.on('click', '[type="button"]', function (e) {
this.form.f.click();
}).on('change', '[type="file"]', function (e) {
if (this.files) {
for (var i = 0, value = []; i < this.files.length; i++) {
value.push(this.files[i].name);
}
value.join();
} else {
var value = this.value.replace(/^.+[\\\/]/, '');
}
this.form.t.value = value;
});
<form action="">
<input name="f" id="f" type="file" onchange="ept();"></input>
<input name="t" id="t" type="text"></input>
</form>function ept() {
document.getElementById('t').value = document.getElementById('f').value;
}