网页设计常用代码
    1、禁止页面正文内容被选取  
<body oncontextmenu="return false" ondragstart="return false" onselectstart ="return false" onselect="document.selection.empty()" oncopy="document.selection.empty()" onbeforecopy="return  
false"onmouseup="document.selection.empty()">    
2、消除ie6自动出现的图像工具栏,设置 GALLERYIMG属性为false或no .  
<IMG SRC="mypicture.jpg" HEIGHT="100px" WIDTH="100px" GALLERYIMG="no">    
3、防止点击空链接时,页面往往重置到页首端。  
代码"javascript :void(null)"代替原来的"#"标记    
4、如何避免别人把你的网页放在框架中  
<script language="javascript"><!--if (self!=top) -->< /script>    
5、页面定时刷新  
<meta http-equiv="Refresh" content="秒" >    
6、页面定时转向新的地址  
<meta http-equiv="refresh" content="秒;URL=url">    
7、关闭窗口,这个是不会弹出提示直接关的:  
把如下代码加入<body>区域中  
<OBJECT id=closes type="application/x-oleobject" classid="clsid:adb880a6-d8ff-11cf-9377-00aa003b7a11">  
<param name="Command" value="Close">  
</object>  
<script language="javascript">function shutwin()</script>  
<a href="javascript :shutwin();">关闭本窗口</a>