function switchSysBar(){
if (switchPoint.innerText==3){
switchPoint.innerText=4
document.all("frmTitle").style.display="none"
}
else{
switchPoint.innerText=3
document.all("frmTitle").style.display=""
}
}
</script>
<table border="0" cellspacing="0" cellpadding="0" width="100%" height="100%">
<tr>
<td id="frmTitle" name="frmTitle" nowrap valign="middle" align="center">
<IFRAME id="BoardTitle" name="main" style="HEIGHT: 100%; VISIBILITY: inherit; WIDTH: 200; Z-INDEX: 2" scrolling="no" frameborder="0" src="left.asp"></IFRAME>
<td style="width:10pt" background="images/t2.gif">
<table cellspacing="0" cellpadding="0" border="0" height="100%">
<tr><td style="height:100%" onclick="switchSysBar()"><span class="navPoint" id="switchPoint" title="关闭/打开左栏">3</span>
</table>
</td><td style="width:100%">
<IFRAME id="frmright" name="BoardList" style="HEIGHT: 100%; VISIBILITY: inherit; WIDTH: 100%; Z-INDEX: 1" scrolling="auto" frameborder="0" src="main.htm"></IFRAME>
</tr></table>