function ChangeAccount(object)
{
	for(i=0;i<object.form.username.value.length;i++)
	{
		if(object.form.username.value.charAt(i)=='@')
		{
			break;
		}
		
	}
	object.form.username.value=object.form.username.value.substring(0,i)+object.form.mailat.options[object.form.mailat.selectedIndex].value;
}
function openwin(id) {
    window.open("http://xf.nchu.edu.cn/show.aspx?id=" + id, "_blank", "height=600,width=800,resizable=yes,scrollbars=yes,status=yes,toolbar=no,menubar=no,location=no");
}