function CheckLogin(){
	if (document.Login.Username.value==""){
		alert("用户名不能为空！");
		document.Login.Username.focus();
	}
	else if (document.Login.Password.value==""){
		alert("密码不能为空！");
	    document.Login.Password.focus();
	}
	else {
        return true;
    }
    return false;
}
document.write('<table width=100%  border=0 cellpadding=0 cellspacing=0>');
document.write('<form action=/User/Action.asp?Act=UserLogin method=post name=Login>');
document.write('<tr>');
document.write('<td width=6%><img src=/Images/default/icon_login.gif width=16 height=13 align=absmiddle> </td>');
document.write('<td width=62%>');
document.write('用户名：<input name=Username type=text class=ipt size=12>');
document.write(' 密码：<input name=Password type=password class=ipt size=12></td>');
document.write('<td width=32%><input name=imageField type=image src=/Images/default/login_button.gif width=39 height=19 border=0 onClick="return CheckLogin()" align=absmiddle>');
document.write('&nbsp;<a href=/User/Register.asp><img src=/Images/default/register_button.gif width=39 border=0 align=absmiddle></a></td>');
document.write('</tr>');
document.write('</form>');
document.write('</table>');