window.open后父窗口显示[object]解决方案

<a href="javascript:window.open('http://www.mzwu.com/');">木子屋</a>

<script>
function winopen()
{
	window.open('http://www.mzwu.com/');
}
</script>
<a href="javascript:winopen();">木子屋</a>

<a href="javascript:void(window.open('http://www.mzwu.com/'));">木子屋</a>