function initCustomFile() {
	var _inputs = document.getElementsByTagName("input");
	var _inputs_btn;
	var _inputs_upload;
	for (var i= 0; i < _inputs.length; i++) {
		if(_inputs[i].className.indexOf("file_input_area") != -1) {
			_inputs_btn = _inputs[i];
		}
		if(_inputs[i].className.indexOf("file_input_upload") != -1) {
			_inputs_upload = _inputs[i];
		}
	}
	if (_inputs_upload) {
		_inputs_upload.readOnly = true;
		_inputs_btn.onchange = function() {
			_inputs_upload.value = _inputs_btn.value;
		}
	}
}
if (window.addEventListener)
	window.addEventListener("load", initCustomFile, false);
else if (window.attachEvent)
	window.attachEvent("onload", initCustomFile);