41.后退
<INPUT TYPE="button" onclick=window.history.back() value=back>

42.前进
<INPUT TYPE="button" onclick=window.history.forward() value=forward>

43.刷新
<INPUT TYPE="button" onclick=document.location.reload() value=reload>

44.转向指定网页
document.location="http://ww"或者document.location.assign("http://guoguo.com")

45.在网页上显示实时时间
<SCRIPT LANGUAGE="JavaScript">
var clock_id;
window.onload=function()
{
 clock_id=setInterval("document.form1.txtclock.value=(new Date);",1000)
}
</SCRIPT>//

46.可以下载文件
document.location.href="目标文件"//

47.连接数据库
import java.sql.*;
String myDBDriver="sun.jdbc.odbc.JdbcOdbcDriver";
Class.forName(myDBDriver);
Connection conn=DriverManager.getConnection("jdbc:odbc:firm","username","password");
Statement stmt=conn.createStatement();
ResultSet rs=stmt.executeQuery(sql);
rs.getString("column1");//

48.可以直接在页面“div”内写下所需内容
<INPUT TYPE="button" onclick="a1.innerHTML='<font color=red>*</font>'">
<div id=a1></div>//

49.可以改变页面上的连接的格式，使其为双线
<style>
A:link {text-decoration: none; color:#0000FF; font-family: 宋体}
A:visited {text-decoration: none; color: #0000FF; font-family: 宋体}
A:hover {text-decoration: underline overline; color: FF0000}
</style>

<style>
A:link {text-decoration: none; color:#0000FF; font-family: 宋体}
A:visited {text-decoration: none; color: #0000FF; font-family: 宋体}
A:hover {text-decoration: underline overline line-through; color: FF0000}
TH{FONT-SIZE: 9pt}
TD{FONT-SIZE: 9pt}
body {SCROLLBAR-FACE-COLOR: #A9D46D; SCROLLBAR-HIGHLIGHT-COLOR: #e7e7e7;SCROLLBAR-SHADOW-COLOR:#e7e7e7;

SCROLLBAR-3DLIGHT-COLOR: #000000; LINE-HEIGHT: 15pt; SCROLLBAR-ARROW-COLOR: #ffffff;

SCROLLBAR-TRACK-COLOR: #e7e7e7;}

INPUT{BORDER-TOP-WIDTH: 1px; PADDING-RIGHT: 1px; PADDING-LEFT: 1px; BORDER-LEFT-WIDTH: 1px; FONT-SIZE:

9pt; BORDER-LEFT-COLOR: #cccccc;
BORDER-BOTTOM-WIDTH: 1px; BORDER-BOTTOM-COLOR: #cccccc; PADDING-BOTTOM: 1px; BORDER-TOP-COLOR: #cccccc;

PADDING-TOP: 1px; HEIGHT: 18px; BORDER-RIGHT-WIDTH: 1px; BORDER-RIGHT-COLOR: #cccccc}
DIV,form ,OPTION,P,TD,BR{FONT-FAMILY: 宋体; FONT-SIZE: 9pt}
textarea, select {border-width: 1; border-color: #000000; background-color: #efefef; font-family: 宋体;

font-size: 9pt; font-style: bold;}
.text { font-family: "宋体"; font-size: 9pt; color: #003300; border: #006600 solid; border-width: 1px 1px

1px 1px}
</style>完整的css

50.新建frame
<a

href="javascript:newframe('http://www.163.net/help/a_little/index.html','http://www.163.net/help/a_little

/a_13.html')"><img alt=帮助 border=0 src=" 阅读排行