161.标题栏
document.title//
162.背景图片
<body style="BACKGROUND-ATTACHMENT: fixed" background="img/bgfix.gif"></body>//背景图片不动
<STYLE TYPE="text/css">
<!--
BODY {background-image:img/bgchild.jpg;
background-position: center;
background-repeat: no-repeat;
background-attachment: fixed;}
-->
</STYLE>//背景图片居中
163.设置透明效果
document.form.xxx.filters.alpha.opacity=0～100//
164.定义方法
var dragapproved=false;
document.onmouseup=new Function("dragapproved = false");//
165.将数字转化为人民币大写形式
function convertCurrency(currencyDigits) {
// Constants:
var MAXIMUM_NUMBER = 99999999999.99;
// Predefine the radix characters and currency symbols for output:
var CN_ZERO = "零";
var CN_ONE = "壹";
var CN_TWO = "贰";
var CN_THREE = "叁";
var CN_FOUR = "肆";
var CN_FIVE = "伍";
var CN_SIX = "陆";
var CN_SEVEN = "柒";
var CN_EIGHT = "捌";
var CN_NINE = "玖";
var CN_TEN = "拾";
var CN_HUNDRED = "佰";
var CN_THOUSAND = "仟";
var CN_TEN_THOUSAND = "万";
var CN_HUNDRED_MILLION = "亿";
var CN_SYMBOL = "人民币";
var CN_DOLLAR = "元";
var CN_TEN_CENT = "角";
var CN_CENT = "分";
var CN_INTEGER = "整";
// Variables:
var integral; // Represent integral part of digit number.
var decimal; // Represent decimal part of digit number.
var outputCharacters; // The output result.
var parts;
var digits, radices, bigRadices, decimals;
var zeroCount;
var i, p, d;
var quotient, modulus;
// Validate input string:
currencyDigits = currencyDigits.toString();
if (currencyDigits == "") {
alert("Empty input!");
return "";
}
if (currencyDigits.match(/[^,.\d]/) != null) {
alert("Invalid characters in the input string!");
return "";
}
if ((currencyDigits).match(/^((\d{1,3}(,\d{3})*(.((\d{3},)*\d{1,3}))?)|(\d+(.\d+)?))$/) == null) {
alert("Illegal format of digit number!");
return "";
}
// Normalize the format of input digits:
currencyDigits = currencyDigits.replace(/,/g, ""); // Remove comma delimiters.
currencyDigits = currencyDigits.replace(/^0+/, ""); // Trim zeros at the beginning.
// Assert the number is not greater than the maximum number.
if (Number(currencyDigits) > MAXIMUM_NUMBER) {
alert("Too large a number to convert!");
return "";
}
// Process the coversion from currency digits to characters:
// Separate integral and decimal parts before processing coversion:
parts = currencyDigits.split(".");
if (parts.length > 1) {
integral = parts[0];
decimal = parts[1];
// Cut down redundant decimal digits that are after the second.
decimal = decimal.substr(0, 2);
}
else {
integral = parts[0];
decimal = "";
}
// Prepare the characters corresponding to the digits:
digits = new Array(CN_ZERO, CN_ONE, CN_TWO, CN_THREE, CN_FOUR, CN_FIVE, CN_SIX, CN_SEVEN, CN_EIGHT,
CN_NINE);
radices = new Array("", CN_TEN, CN_HUNDRED, CN_THOUSAND);
bigRadices = new Array("", CN_TEN_THOUSAND, CN_HUNDRED_MILLION);
decimals = new Array(CN_TEN_CENT, CN_CENT);
// Start processing:
outputCharacters = "";
// Process integral part if it is larger than 0:
if (Number(integral) > 0) {
zeroCount = 0;
for (i = 0; i < integral.length; i++) {
p = integral.length - i - 1;
d = integral.substr(i, 1);
quotient = p / 4;
modulus = p % 4;
if (d == "0") {
zeroCount++;
}
else {
if (zeroCount > 0)
{
outputCharacters += digits[0];
}
zeroCount = 0;
outputCharacters += digits[Number(d)] + radices[modulus];
}
if (modulus == 0 && zeroCount < 4) {
outputCharacters += bigRadices[quotient];
}
}
outputCharacters += CN_DOLLAR;
}
// Process decimal part if there is:
if (decimal != "") {
for (i = 0; i < decimal.length; i++) {
d = decimal.substr(i, 1);
if (d != "0") {
outputCharacters += digits[Number(d)] + decimals[i];
}
}
}
// Confirm and return the final output string:
if (outputCharacters == "") {
outputCharacters = CN_ZERO + CN_DOLLAR;
}
if (decimal == "") {
outputCharacters += CN_INTEGER;
}
outputCharacters = CN_SYMBOL + outputCharacters;
return outputCharacters;
}//
166.xml数据岛绑定表格
<html><body><xml id="abc" src="test.xml"></xml><table border='1' datasrc='#abc'><thead><td>接收人</td><td>发送人</td><td>主题</td><td>内容</td></thead><tfoot><tr><th>表格的结束</th></tr></tfoot><tr><td><div datafld="to"></div></td><td><div datafld="from"></div></td><td><div datafld="subject"></div></td><td><div datafld="content"></div></td></tr></table></body></html>
//cd_catalog.xml
<?xml version="1.0" encoding="ISO-8859-1" ?><!-- Edited with XML Spy v4.2
--><CATALOG><CD><TITLE>Empire Burlesque</TITLE><ARTIST>Bob Dylan</ARTIST><COUNTRY>USA</COUNTRY><COMPANY>Columbia</COMPANY><PRICE>10.90</PRICE><YEAR>1985</YEAR></CD><CD><TITLE>Hide your heart</TITLE><ARTIST>Bonnie Tyler</ARTIST><COUNTRY>UK</COUNTRY><COMPANY>CBS Records</COMPANY><PRICE>9.90</PRICE><YEAR>1988</YEAR></CD><CD><TITLE>Greatest Hits</TITLE><ARTIST>Dolly Parton</ARTIST><COUNTRY>USA</COUNTRY><COMPANY>RCA</COMPANY><PRICE>9.90</PRICE><YEAR>1982</YEAR></CD><CD><TITLE>Still got the blues</TITLE><ARTIST>Gary Moore</ARTIST><COUNTRY>UK</COUNTRY><COMPANY>Virgin records</COMPANY><PRICE>10.20</PRICE><YEAR>1990</YEAR></CD></CATALOG>
//
167.以下组合可以正确显示汉字
================================
xml保存编码 xml页面指定编码
ANSI gbk/GBK、gb2312
Unicode unicode/Unicode
UTF-8 UTF-8
================================
168.XML操作
<xml id="xmldata" src="/data/books.xml"><div id="guoguo"></div><script>var x=xmldata.recordset //取得数据岛中的记录集if(x.absoluteposition < x.recordcount) //如果当前的绝对位置在最后一条记录之前{
x.movenext(); //向后移动 x.moveprevious(); //向前移动 x.absoluteposition=1; //移动到第一条记录 x.absoluteposition=x.recordcount;//移动到最后一条记录，注意记录集x.absoluteposition是从1到记录集记录的个
数的
guoguo.innerText=xmldso.recordset("field_name"); //从中取出某条记录}
</script>
169.动态修改CSS的另一种方式
this.runtimeStyle.cssText = "color:#990000;border:1px solid #cccccc";//
170.正则表达式
匹配中文字符的正则表达式： [\u4e00-\u9fa5]
匹配双字节字符(包括汉字在内)：[^\x00-\xff]
应用：计算字符串的长度（一个双字节字符长度计2，ASCII字符计1）
String.prototype.len=function(){return this.replace([^\x00-\xff]/g,"aa").length;}
匹配空行的正则表达式：\n[\s| ]*\r
匹配HTML标记的正则表达式：/<(.*)>.*<\/\1>|<(.*) \/>/
匹配首尾空格的正则表达式：(^\s*)|(\s*$)
应用：javascript中没有像vbscript那样的trim函数，我们就可以利用这个表达式来实现，如下：
String.prototype.trim = function()
{
return this.replace(/(^\s*)|(\s*$)/g, "");
}
////////利用正则表达式分解和转换IP地址：
下面是利用正则表达式匹配IP地址，并将IP地址转换成对应数值的Javascript程序：
function IP2V(ip)
{
re=/(\d+)\.(\d+)\.(\d+)\.(\d+)/g //匹配IP地址的正则表达式
if(re.test(ip))
{
return RegExp.$1*Math.pow(255,3))+RegExp.$2*Math.pow(255,2))+RegExp.$3*255+RegExp.$4*1
}
else
{
throw new Error("Not a valid IP address!")
}
}
不过上面的程序如果不用正则表达式，而直接用split函数来分解可能更简单，程序如下：
var ip="10.100.20.168"
ip=ip.split(".")
alert("IP值是："+(ip[0]*255*255*255+ip[1]*255*255+ip[2]*255+ip[3]*1))
匹配Email地址的正则表达式：\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*
匹配网址URL的正则表达式：http://([\w-]+\.)+[\w-]+(/[\w- ./?%&=]*)?
//////////利用正则表达式去除字串中重复的字符的算法程序：
var s="abacabefgeeii"
var s1=s.replace(/(.).*\1/g,"$1")
var re=new RegExp("["+s1+"]","g")
var s2=s.replace(re,"")
alert(s1+s2) //结果为：abcefgi
思路是使用后向引用取出包括重复的字符，再以重复的字符建立第二个表达式，取到不重复的字符，两者串连。这个方
法对于字符顺序有要求的字符串可能不适用。
//////////得用正则表达式从URL地址中提取文件名的javascript程序，如下结果为page1
s="http://www.9499.net/page1.htm"
s=s.replace(/(.*\/){0,}([^\.]+).*/ig,"$2")
alert(s)
/////////利用正则表达式限制网页表单里的文本框输入内容：
用正则表达式限制只能输入中文：onkeyup="value=value.replace(/[^\u4E00-\u9FA5]/g,'')"
onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^\u4E00-\u9FA5]/g,'')
)"
用正则表达式限制只能输入全角字符： onkeyup="value=value.replace(/[^\uFF00-\uFFFF]/g,'')"
onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^\uFF00-\uFFFF]/g,'')
)"
用正则表达式限制只能输入数字：onkeyup="value=value.replace(/[^\d]/g,'')
"onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^\d]/g,''))"
用正则表达式限制只能输入数字和英文：onkeyup="value=value.replace(/[\W]/g,'')
"onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^\d]/g,''))"
171.设置和使用cookie
<HTML><BODY>
设置与读取 cookies...<BR>
写入cookie的值<input type=text name=gg><INPUT TYPE = BUTTON Value = "设置cookie" onClick = "Set()"><INPUT TYPE = BUTTON Value = "读取cookie" onClick = "Get()"><BR><INPUT TYPE = TEXT NAME = Textbox></BODY><SCRIPT LANGUAGE="JavaScript">function Set()
{
var Then =new Date()
Then.setTime(Then.getTime() +60*1000 ) //60秒document.cookie ="Cookie1="+gg.value+";expires="+ Then.toGMTString()
}
function Get()
{
var cookieString =new String(document.cookie)
var cookieHeader ="Cookie1="var beginPosition = cookieString.indexOf(cookieHeader)
if (beginPosition !=-1)
{
document.all.Textbox.value = cookieString.substring(beginPosition + cookieHeader.length)
}
else
document.all.Textbox.value ="Cookie 未找到!"
}
</SCRIPT></HTML>//
172.取月的最后一天
function getLastDay(year,month)
{
//取年
var new_year = year;
//取到下一个月的第一天,注意这里传入的month是从1～12
var new_month = month++;
//如果当前是12月，则转至下一年
if(month>12)
{
new_month -=12;
new_year++;
}
var new_date = new Date(new_year,new_month,1);
return (new Date(new_date.getTime()-1000*60*60*24)).getDate();
}//
173.判断当前的焦点是组中的哪一个
for(var i=0;i<3;i++)
if(event.srcElement==bb[i])
break;//
174.实现类
package com.baosight.view.utils;
import javax.servlet.jsp.tagext.TagSupport;
import javax.servlet.http.HttpSession;
public class Mytag extends TagSupport
{
public int doStartTag() throws javax.servlet.jsp.JspException
{
boolean canAccess = false;
HttpSession session= pageContext.getSession();
if (canAccess)
{
return EVAL_BODY_INCLUDE;
}
else
{
return this.SKIP_BODY;
}
}
}
175.在web.xml中添加定义
<taglib><taglib-uri>guoguo</taglib-uri><taglib-location>/WEB-INF/abc.tld</taglib-location></taglib>
176.标签库中定义abc.tld
<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE taglib PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.1//EN"
"http://java.sun.com/j2ee/dtds/web-jsptaglibrary_1_1.dtd"><taglib><tlibversion>1.0</tlibversion><jspversion>1.1</jspversion><shortname>hr</shortname><uri>guoguo</uri><info>Extra 3 Tag Library</info><tag><name>mytag</name><tagclass>com.baosight.view.utils.Mytag</tagclass><attribute><name>id2</name><required>true</required><rtexprvalue>true</rtexprvalue></attribute></tag></taglib>
177.在使用自定义标签的页面中加入自己定义的标签，
<%@ taglib uri="guoguo" prefix="guoguo"%>
//自己定义标签
178.显示带边框的集
<fieldset style="border:1px gray solid;width:100px"><legend>查询条件</legend>
dfdfdf
</fieldset>//
179.【文件(F)】菜单中的命令的实现
