[bes]

<input type="file" onchange = "location.href = window.webkitURL.createObjectURL(event.target.files[0])">

<input type="file">

<script>
//хром и FF
document.body.children[0].onchange = function (e) {
	window.URL = window.URL || webkitURL;
	var file = e.target.files[0];
	if (file.type.indexOf('html') != - 1) {
		window.location.href = window.URL.createObjectURL(file);
	}
}
</script>

<input type="file">

<script>
//хром, FF, IE
document.body.children[0].onchange = function (e) {
	if (navigator.userAgent.indexOf('MSIE') != -1) {
		var url = this.value; 
		if (url.indexOf('html') != -1 || url.indexOf('htm') != -1) {
			window.location.href = url;
		}
	} else {
		window.URL = window.URL || webkitURL;
		var file = e.target.files[0];
		if (file.type.indexOf('html') != - 1) {
			window.location.href = window.URL.createObjectURL(file);
		}
	}
}
</script>