紧急求助,关于层控制问题。
测试网站:http://01.s320.cn 
 如果控制打开隐藏后中的链接后,原层自动隐藏?谢谢。
------解决方案--------------------给你个sina首页的滑动门吧:   
  <!DOCTYPE HTML PUBLIC  "-//W3C//DTD HTML 4.01 Transitional//EN "  "http://www.w3c.org/TR/1999/REC-html401-19991224/loose.dtd ">  
  <HTML  
 xmlns= "http://www.w3.org/1999/xhtml ">  <HEAD>  <TITLE> 新浪首页 </TITLE>  
  <META http-equiv=Content-Type content= "text/html; charset=gb2312 ">  
  <META content=PGLS000022 name=stencil>  
  <META content=30,50,1 name=publishid>  
  <STYLE type=text/css>      
 .BlkBlack { 
 	WIDTH: 585px 
 } 
 .BlkBlack .Blk2RC { 
 	BACKGROUND: url(http://image2.sina.com.cn/home/07index/sinahome_ws_016.gif) repeat-y; WIDTH: 289px; BORDER-BOTTOM: #bfbfbf 1px solid 
 } 
 .BlkBlack .Blk2RC H1 { 
 	FONT-WEIGHT: normal; FONT-SIZE: 12px; BACKGROUND: url(http://image2.sina.com.cn/home/07index/sinahome_ws_014.gif) #575757 repeat-x; MARGIN-BOTTOM: 9px; OVERFLOW: hidden; COLOR: #fffae1; HEIGHT: 24px 
 } 
 .BlkBlack .Blk2RC H1 .BlkBlackTab { 
 	PADDING-RIGHT: 0px; PADDING-LEFT: 0px; FONT-WEIGHT: bold; BACKGROUND: url(http://image2.sina.com.cn/home/07index/sinahome_ws_024.gif) #ddd no-repeat; FLOAT: left; PADDING-BOTTOM: 0px; OVERFLOW: hidden; WIDTH: 62px; COLOR: #333; PADDING-TOP: 6px; HEIGHT: 18px; TEXT-ALIGN: center 
 } 
 .BlkBlack .Blk2RC H1 .BlkBlackTabOff { 
 	PADDING-RIGHT: 0px; PADDING-LEFT: 0px; BACKGROUND: url(http://image2.sina.com.cn/home/07index/sinahome_ws_025.gif) #888 no-repeat; FLOAT: left; PADDING-BOTTOM: 0px; OVERFLOW: hidden; WIDTH: 62px; COLOR: #fff; PADDING-TOP: 6px; HEIGHT: 18px; TEXT-ALIGN: center 
 } 
 .BlkBlack .Blk2RC H1 .BlkBlackTab A:link { 
 	COLOR: #333; TEXT-DECORATION: none 
 } 
 .BlkBlack .Blk2RC H1 .BlkBlackTab A:visited { 
 	COLOR: #333; TEXT-DECORATION: none 
 } 
 .BlkBlack .Blk2RC H1 .BlkBlackTab A:hover { 
 	COLOR: #333; TEXT-DECORATION: underline 
 } 
 .BlkBlack .Blk2RC H1 .BlkBlackTab A:active { 
 	COLOR: #333; TEXT-DECORATION: underline 
 } 
 .BlkBlack .Blk2RC H1 .BlkBlackTabOff A:link { 
 	COLOR: #fff; TEXT-DECORATION: none 
 } 
 .BlkBlack .Blk2RC H1 .BlkBlackTabOff A:visited { 
 	COLOR: #fff; TEXT-DECORATION: none 
 } 
 .BlkBlack .Blk2RC H1 .BlkBlackTabOff A:hover { 
 	COLOR: #fff; TEXT-DECORATION: underline 
 } 
 .BlkBlack .Blk2RC H1 .BlkBlackTabOff A:active { 
 	COLOR: #fff; TEXT-DECORATION: underline 
 } 
 .BlkBlack .Blk2RC H1 .capTxt { 
 	PADDING-RIGHT: 8px; DISPLAY: block; PADDING-LEFT: 0px; FLOAT: right; PADDING-BOTTOM: 0px; PADDING-TOP: 6px; TEXT-ALIGN: right 
 } 
 .BlkBlack .Blk2RC H1 .capTxt A:link { 
 	COLOR: #fffae1; TEXT-DECORATION: underline 
 } 
 .BlkBlack .Blk2RC H1 .capTxt A:visited { 
 	COLOR: #fffae1; TEXT-DECORATION: underline 
 } 
 .BlkBlack .Blk2RC H1 .capTxt A:hover { 
 	COLOR: #ffd77b; TEXT-DECORATION: underline 
 } 
 .BlkBlack .Blk2RC H1 .capTxt A:active { 
 	COLOR: #ffd77b; TEXT-DECORATION: underline 
 } 
 #head A:unknown { 
 	COLOR: #ffd77b; TEXT-DECORATION: underline 
 }     
 .BlkBlack2 .Blk2RC H1 .capTxt A:link { 
 	COLOR: #fffae1; TEXT-DECORATION: underline 
 } 
 .BlkBlack2 .Blk2RC H1 .capTxt A:visited { 
 	COLOR: #fffae1; TEXT-DECORATION: underline 
 } 
 .BlkBlack2 .Blk2RC H1 .capTxt A:hover { 
 	COLOR: #ffd77b; TEXT-DECORATION: underline 
 } 
 .BlkBlack2 .Blk2RC H1 .capTxt A:active { 
 	COLOR: #ffd77b; TEXT-DECORATION: underline 
 } 
 .BlkBlack2 .Blk2RC .List { 
 	CLEAR: both; PADDING-RIGHT: 0px; PADDING-LEFT: 9px; PADDING-BOTTOM: 0px; PADDING-TOP: 0px 
 } 
 .Bl