新手提问???图片不显示,,急!!请高手们给予指导!谢谢

<LINK href="image/help.css" type="text/css" rel="stylesheet">
<SCRIPT language="JavaScript">
<!--
//改变节点的图标和说明
function ShiftPic(obj,SpanID)
{
if(SpanID.className=='hide')
{
//alert("1");
obj.src="image/open.gif";
obj.height="15";
obj.width="16";
}
else
{
//alert("2");
obj.src="image/fold.gif";
obj.height="15";
obj.width="16";
}
if(SpanID.className=='hide')
{
SpanID.className='show';
}
else
{
SpanID.className='hide';
}
}
//改变节点的隐藏，显示属性
//function ShowHide(obj,SpanID)
//{

// if(SpanID.className=='hide')
// {
// SpanID.className='show';
// }
// else
// {
// SpanID.className='hide';
// }
//}

//-->
</SCRIPT>
<META content="MSHTML 6.00.2800.1106" name="GENERATOR"></HEAD>
<BODY text="#000000" bgColor="#ffffff">
<TABLE>
<TBODY>
<TR>
<TD><IMG id="Ai1" style="BORDER-RIGHT: 0px; BORDER-TOP: 0px; BORDER-LEFT: 0px; CURSOR: hand; BORDER-BOTTOM: 0px"
onclick="ShiftPic(this,Span2)" src="image/fold.gif"> <A class="linktree" href="javascript:ShiftPic(Ai1,Span2)">
我的桌面</A>
<SPAN class="hide" id="Span2">
<ul>
<IMG src="image/list.gif"> <A href="我的桌面/修改密码.htm" target="mainFrame">修改密码</A>
</ul>
<UL>
<IMG src="image/list.gif"> <A href="定义桌面.htm" target="mainFrame">定义桌面</A>
</UL>
<UL>
<IMG src="image/list.gif"> <A href="我的桌面/私有报表.htm" target="mainFrame">私有报表</A>
</UL>
<UL>
<IMG src="image/list.gif"> <A href="个人名片.htm" target="mainFrame">站内短信</A>
</UL>
</SPAN></TD>
</TR>
<TR>