javascript發表評論或者留言時的展開效果

<meta http-equiv="content-type" content="text/html; charset=gb2312"><br /><style type="text/css"> body { margin:20px; background:#c72c02; color:#ffffff; font-size:12px; font-family:verdana; } fieldset { width:300; border:1px dashed #ffffff; } legend { width:150px; border:1px dashed #ffffff; background-color:#c72c02; font-weight:bold; line-height:24px; text-align:center } a:link,a:hover,a:visited { color:#ffffff; } </style><i>Happy new year!to 51jser</i><p><br />……………………</p><p>人太多，我就不一一列舉了，千言萬語。盡在不言中！<br />