3、在button的onClick事件中输入
this.RegisterClientScriptBlock("e","<scriptlanguage=javascript>history.go(-2);</script>");
三、弹出框
1、 弹出提示框
Alert("提示框，呵呵");
2、 弹出确认框
return confirm("确认框，呵呵");
四、其它常用JS
1. oncontextmenu="window.event.returnValue=false" 将彻底屏蔽鼠标右键
<table border oncontextmenu=return(false)><td>no</table> 可用于Table
2. <body onselectstart="return false"> 取消选取、防止复制
3. onpaste="return false" 不准粘贴
4. oncopy="return false;" oncut="return false;" 防止复制
5. <link rel="Shortcut Icon" href="favicon.ico"> IE地址栏前换成自己的图标
6. <link rel="Bookmark" href="favicon.ico"> 可以在收藏夹中显示出你的图标
7. <input style="ime-mode:disabled"> 关闭输入法
8. 永远都会带着框架 <script language="JavaScript"><!-- if (window == top)top.location.href = "frames.htm"; //frames.htm为框架网页 // --></script>
9. 防止被人frame <SCRIPT LANGUAGE=JAVASCRIPT><!-- if (top.location != self.location)top.location=self.location; // --></SCRIPT>
10. <noscript><iframe src=*.html></iframe></noscript> 网页将不能被另存为
11. <input type=button value=查看网页源代码 onclick="window.location = \'view-source:\'+ \'http://www.csdn.net/\'">
12. 怎样通过asp的手段来检查来访者是否用了代理
<% if Request.ServerVariables("HTTP_X_FORWARDED_FOR")<>"" then
response.write "<font color=#FF0000>您通过了代理服务器，"& _ "真实的IP为"&Request.ServerVariables("HTTP_X_FORWARDED_FOR") end if %>
13. 取得控件的绝对位置
//Javascript
<script language="Javascript">
function getIE(e)
{ var t=e.offsetTop;
var l=e.offsetLeft;
while(e=e.offsetParent)
{ t+=e.offsetTop;
l+=e.offsetLeft;
}
alert("top="+t+"\nleft="+l);
}
</script>
//VBScript
<script language="VBScript">
<!-- function getIE()
dim t,l,a,b
set a=document.all.img1
t=document.all.img1.offsetTop
l=document.all.img1.offsetLeft
while a.tagName<>"BODY"
set
a = a.offsetParent
t=t+a.offsetTop
l=l+a.offsetLeft
wend
msgbox "top="&t&chr(13)&"left="&l,64,"得到控件的位置"
end function -->
</script>
14. 光标是停在文本框文字的最后
<script language="javascript">
function cc()
{ var e = event.srcElement;
var r =e.createTextRange();
r.moveStart(\'character\',e.value.length);
r.collapse(true);
r.select(); }
</script> <input type=text name=text1 value="123" onfocus="cc()">
15. 判断上一页的来源
asp: request.servervariables("HTTP_REFERER")
java script: document.referrer
16. 最小化、最大化、关闭窗口
<object id=hh1
classid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11">
<param name="Command" value="Minimize">
</object>
<object
id=hh2 classid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11">
<param name="Command" value="Maximize"></object>
<OBJECT id=hh3
classid="clsid:adb880a6-d8ff-11cf-9377-00aa003b7a11">
<PARAM NAME="Command" VALUE="Close"></OBJECT>
<input type=button value=最小化 onclick=hh1.Click()>
<input type=button value=最大化 onclick=hh2.Click()>
<input type=button value=关闭 onclick=hh3.Click()> 本例适用于IE