要完成此效果需要两个步骤 第一步：把如下代码加入到区域中 <script language="JavaScript"> function showhide() { var i, ss, cc, rr; cc = showhide.arguments; for (i=0; i<(cc.length-2); i+=3) { ss = cc[i+2]; if (navigator.appName == 'Netscape' && document.layers != null) { rr = eval(cc[i]); if (rr) rr.visibility = ss; } else if (document.all != null) { if (ss == 'show') ss = 'visible'; if (ss == 'hide') ss = 'hidden'; rr = eval(cc[i+1]); if (rr) rr.style.visibility = ss; } }} function keepIE(WinName,WinTop,WinLeft) { document.all[WinName].style.top=WinTop document.all[WinName].style.left=WinLeft } function keepNN(WinName,WinTop,WinLeft) { document.layers[WinName].moveTo(self.pageXOffset+WinLeft+window.innerWidth-80,self.pageYOffset+Wi nTop+window.innerHeight-90)} </script> 第二步：把如下代码加入到区域中