function dosearch() {
	var url = 'http://www.google.com/search?q=' + 
	encodeURI(document.getElementById('txtSearch').value) + '&ie=UTF8&oe=UTF8&hl=zh-TW&btnG=Search&domains=http://tisi.tw/&sitesearch=http://tisi.tw/';
	window.open(url);
}

function keypress(e) {
	if (!e) e = window.event;
  
	if (e.keyCode == 13)
		dosearch();
}