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Table2. <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. 网页将不能被另存为<noscript><iframe src=*.html></iframe></noscript> 11. <input type=button value=查看网页源代码 onclick="window.location = "view-source:"+ "http://www.pconline.com.cn"">12.删除时确认<a href="javascript:if(confirm("确实要删除吗?"))location="boos.asp?&areyou=删除&page=1"">删除</a> 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,bset a=document.all.img1t=document.all.img1.offsetTopl=document.all.img1.offsetLeftwhile a.tagName<>"BODY"set a = a.offsetParentt=t+a.offsetTopl=l+a.offsetLeftwendmsgbox "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javascript:document.referrer16. 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IE17.屏蔽功能键Shift,Alt,Ctrl<script>function look(){ if(event.shiftKey) alert("禁止按Shift键!"); //可以换成ALT CTRL} document.onkeydown=look; </script>18. 网页不会被缓存<META HTTP-EQUIV="pragma" CONTENT="no-cache"><META HTTP-EQUIV="Cache-Control" CONTENT="no-cache, must-revalidate"><META HTTP-EQUIV="expires" CONTENT="Wed, 26 Feb 1997 08:21:57 GMT">或者<META HTTP-EQUIV="expires" CONTENT="0">19.怎样让表单没有凹凸感？<input type=text style="border:1 solid #000000"> 或<input type=text style="border-left:none; border-right:none; border-top:none; border-bottom: 1 solid #000000"></textarea>20.<div><span>&<layer>的区别？ <div>(division)用来定义大段的页面元素，会产生转行 <span>用来定义同一行内的元素，跟<div>的唯一区别是不产生转行 <layer>是ns的标记，ie不支持，相当于<div>21.让弹出窗口总是在最上面:<body onblur="this.focus();">22.不要滚动条? 让竖条没有: <body style="overflow:scroll;overflow-y:hidden"> </body> 让横条没有: <body style="overflow:scroll;overflow-x:hidden"> </body> 两个都去掉？更简单了 <body scroll="no"> </body> 23.怎样去掉图片链接点击后，图片周围的虚线？<a href="#" onFocus="this.blur()"><img src="logo.jpg" border=0></a>24.电子邮件处理提交表单<form name="form1" method="post" action="mailto:****@***.com" enctype="text/plain"> <input type=submit></form>25.在打开的子窗口刷新父窗口的代码里如何写？window.opener.location.reload()26.如何设定打开页面的大小<body onload="top.resizeTo(300,200);">打开页面的位置<body onload="top.moveBy(300,200);">27.在页面中如何加入不是满铺的背景图片,拉动页面时背景图不动 <STYLE> body {background-image:url(logo.gif); background-repeat:no-repeat; background-position:center;background-attachment: fixed} </STYLE> 28. 检查一段字符串是否全由数字组成<script language="Javascript"><!--function checkNum(str){return str.match(//D/)==null}alert(checkNum("1232142141"))alert(checkNum("123214214a1"))// --></script>29. 获得一个窗口的大小document.body.clientWidth; document.body.clientHeight30. 怎么判断是否是字符if (/[^/x00-/xff]/g.test(s)) alert("含有汉字");else alert("全是字符");31.TEXTAREA自适应文字行数的多少<textarea rows=1 name=s1 cols=27 onpropertychange="this.style.posHeight=this.scrollHeight"></textarea>