收缩左边栏效果

<HTML>
<HEAD>
<META http-equiv="Content-Type" content="text/html; charset=gb2312">
<TITLE>收缩左边栏效果</TITLE>
<STYLE  type="text/css">
td{font-size:12px;line-height:22px;}
.red{color: #FF0000}
</STYLE>
<SCRIPT language="JavaScript">
function show(){
if(document.getElementById("left").style.display=='none'){ //判断目前左边栏的状态（显示、隐藏）
document.getElementById("left").style.display='block';  //显示左边栏
}
else{document.getElementById("left").style.display='none';  //隐藏左边栏
}
}
</SCRIPT>
</HEAD>

<BODY leftmargin="0" topmargin="0" marginwidth="0" marginheight="0" ONCONTEXTMENU="return false;">
<TABLE width="98%" border="0" cellspacing="0" cellpadding="0" align="center">
  <TR>
    <TD id="left" width="200">点点右边的收缩按钮，看看我是不是进去了！</TD>
    <TD width="8"  style="border-right:1 #cccccc  solid;"><A href="javascript:show();"><IMG src="image/fclose.jpg" align="absmiddle" border="0"></A></TD>
    <TD valign="top"><DIV style="padding-left:10px;padding-right:10px;"><BR>
    一、点击左边的缩进图片，左边栏收缩
	<BR><BR>
	二、实现的思路
	<DIV style="padding-left:20px;">1、图片作为按扭，点击图片触发层的显示和收缩，图片代码如下：<BR>
	  <SPAN class="red">< A href="javascript:show();"> < IMG src="image/fclose.gif" align="absmiddle" border="0"> < /A></SPAN></DIV>
	  
	  <BR>三、主要源代码
	  <DIV style="padding-left:20px;background-color:#efefef;">
	    <P><HTML><BR>
	      <HEAD><BR>
	      <META http-equiv="Content-Type" content="text/html; charset=gb2312"><BR>
	      <TITLE>收缩左边栏效果</TITLE><BR>
	      <STYLE  type="text/css"><BR>
	      td{font-size:12px;line-height:22px;}<BR>
	      .red{color: #FF0000}<BR>
	      </STYLE><BR>
	      <SCRIPT language="JavaScript"><BR>
	      function show(){<BR>
	      <SPAN class="red">if(document.getElementById("left").style.display=='none')</SPAN>{ //判断目前左边栏的状态（显示、隐藏）<BR>
	      <SPAN class="red">document.getElementById("left").style.display='block';  </SPAN>//显示左边栏<BR>
	      }<BR>
	      <SPAN class="red">else{document.getElementById("left").style.display='none';</SPAN>  //隐藏左边栏<BR>
	      }<BR>
	      }<BR>
	      </SCRIPT><BR>
	      </HEAD></P>
	    <P><BODY leftmargin="0" topmargin="0" marginwidth="0" marginheight="0" ONCONTEXTMENU="return false;"><BR>
	      <TABLE width="98%" border="0" cellspacing="0" cellpadding="0" align="center"><BR>
  <TR><BR>
  <TD id="left" width="200">点点右边的收缩按钮，看看我是不是进去了！</TD><BR>
  <TD width="8"  style="border-right:1 #cccccc  solid;"><SPAN class="red"><A href="javascript:show();"><IMG src="image/fclose.jpg" align="absmiddle" border="0"></A></SPAN></TD><BR>
  <TD valign="top">右侧</TD><BR>
  </TR><BR>
  </TABLE></P>
	    <P></BODY><BR>
	      </HTML></P>
	  </DIV>
<BR>四、制作一个页面，实现收缩左边栏的效果(和本例效果一样)<BR>
<BR> 	
</DIV>	
	</TD>
  </TR>
</TABLE>

</BODY>
</HTML>