javascript常用备忘

Fri, 17 Nov 2006 06:29:29 +0000

1、父子窗口
打开一个子窗口：
open

打开即最大化：

得到父窗口的控件：
window.opener.document.forms[0].txt1.value;

得到父窗口全局javascript变量：
window.opener.var

刷新父页面：
self.opener.location='url of super page'

关闭窗口时，刷新父窗口：

弹出对话框：
window.alert();
window.confirm()
window.prompt()
window.showModalDialog()

定时刷新窗口：

设定iframe的src：
myIframe.src = "the URL";

探测分辨率：
screen.width
screen.height

2、控件
遍历一个select（名为airline）：
for(var j=0;j if(document.forms[0].airline.options[j].text=="<%=airline%>"){
document.forms[0].airline.selectedIndex = j;
}
}
3、语言
二维数组：
var arr = new Array();
for(var i=0;i<3;i++){
arr[i] = new Array();
arr[i][0] = i+"0";
arr[i][1] = i+"1";
}

4、其他：
------------------------------------------------

如果你的网页设计了一个弹出窗口，发布一些消息什么的。将下面的代码加入适当
位置，会使这个页面经过设置的时间后自动关闭。多实用呀！！！不会使弹出窗口功能
招人嫌！本例设定10秒。
将如下代码加入在规定时间自动关闭的页面HTML的区：

将如下代码加入在规定时间自动关闭的页面HTML的区：
*调用关闭脚本

--------------------------------------------------
如何在JavaScript里定时触发一个函数调用？

setTimeout() 是延时**微秒之后执行，
setInterval()是每隔**微秒执行一次

如果函数的最后一行是 setTimeout() 并执行自己，如：
function abc() {
... ...
setTimeout("abc()", 100);
}

执行的效果就和 setInterval("abc()", 100) 差不多了

-------------------------------------------------
如何从父窗口定时关闭子窗口:

...

...

...

---------------------------------------------------------------------------------------------------------

---------------------------------------------------------------------------------------------------------

一个日历：

使用：

BUG：在frame中报错

解决：将这句parent.WebCalendar.wordColor的parent.去掉

源代码：

document.write("");
function writeIframe()
{
var strIframe = "

";
if (WebCalendar.drag){ strIframe += ""+
"var drag=false, cx=0, cy=0, o = parent.WebCalendar.calendar; function document.onmousemove(){"+
"if(parent.WebCalendar.drag && drag){if(o.style.left=='')o.style.left=0; if(o.style.top=='')o.style.top=0;"+
"o.style.left = parseInt(o.style.left) + window.event.clientX-cx;"+
"o.style.top = parseInt(o.style.top) + window.event.clientY-cy;}}"+
"function document.onkeydown(){ switch(window.event.keyCode){ case 27 : parent.hiddenCalendar(); break;"+
"case 37 : parent.prevM(); break; case 38 : parent.prevY(); break; case 39 : parent.nextM(); break; case 40 : parent.nextY(); break;"+
"case 84 : document.forms[0].today.click(); break;} window.event.keyCode = 0; window.event.returnValue= false;}"+
"function dragStart(){cx=window.event.clientX; cy=window.event.clientY; drag=true;}"}
strIframe += ""+
""+
""+
"

"+
" "+
" "+
" "+
" "+
"

" onmouseover='this.bgColor=parent.WebCalendar.darkColor; this.style.color=parent.WebCalendar.lightColor'"+
" onmouseout='this.bgColor=parent.WebCalendar.lightColor; this.style.color=parent.WebCalendar.wordColor'>

"+
"

if(WebCalendar.drag){strIframe += "onmousedown='dragStart()' onmouseup='drag=false' onmouseout='drag=false'";}
strIframe += " borderColorLight='"+ WebCalendar.darkColor +"' borderColorDark='"+ WebCalendar.lightColor +"'>"+
"

日

一

二

三

四

五

六

"+
"

"+
" ";
for(var x=0; x<5; x++){ strIframe += "";
for(var y=0; y<7; y++) strIframe += ""; strIframe += "";}
strIframe += "";
for(var x=35; x<39; x++) strIframe += "";
strIframe +="


	" type=button value=' 关闭' onclick='parent.hiddenCalendar()'>

"+
"

"+
" "+
"

" onfocus='this.blur()' style='meizz:expression(this.disabled=parent.WebCalendar.thisYear==1000)'> " onfocus='this.blur()' name=prevMonth title='向前翻 1 月快捷键：←' onclick='parent.prevM()' type=button value='< '>"+
"

" onclick=\"parent.returnDate(new Date().getDate() +'/'+ (new Date().getMonth() +1) +'/'+ new Date().getFullYear())\">"+
"

" onfocus='this.blur()'> " onfocus='this.blur()' style='meizz:expression(this.disabled=parent.WebCalendar.thisYear==9999)'>

"+
"

";
with(WebCalendar.iframe)
{
document.writeln(strIframe); document.close();
for(var i=0; i<39; i++)
{
WebCalendar.dayObj[i] = eval("meizzDay"+ i);
WebCalendar.dayObj[i].onmouseover = dayMouseOver;
WebCalendar.dayObj[i].onmouseout = dayMouseOut;
WebCalendar.dayObj[i].onclick = returnDate;
}
}
}
function WebCalendar() //初始化日历的设置
{
this.regInfo = "WEB Calendar ver 3.0 作者：meizz(梅花雪疏影横斜) 网站：http://www.meizz.com/ 关闭的快捷键：[Esc]";
this.regInfo += " Ver 2.0：walkingpoison(水晶龙) Ver 1.0：meizz(梅花雪疏影横斜)";
this.daysMonth = new Array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
this.day = new Array(39); //定义日历展示用的数组
this.dayObj = new Array(39); //定义日期展示控件数组
this.dateStyle = null; //保存格式化后日期数组
this.objExport = null; //日历回传的显示控件
this.eventSrc = null; //日历显示的触发控件
this.inputDate = null; //转化外的输入的日期(d/m/yyyy)
this.thisYear = new Date().getFullYear(); //定义年的变量的初始值
this.thisMonth = new Date().getMonth()+ 1; //定义月的变量的初始值
this.thisDay = new Date().getDate(); //定义日的变量的初始值
this.today = this.thisDay +"/"+ this.thisMonth +"/"+ this.thisYear; //今天(d/m/yyyy)
this.iframe = window.frames("meizzCalendarIframe"); //日历的 iframe 载体
this.calendar = getObjectById("meizzCalendarLayer"); //日历的层
this.dateReg = ""; //日历格式验证的正则式
this.yearFall = 50; //定义年下拉框的年差值
this.format = "yyyy-mm-dd"; //回传日期的格式
this.timeShow = false; //是否返回时间
this.drag = true; //是否允许拖动
this.darkColor = "#0000D0"; //控件的暗色
this.lightColor = "#FFFFFF"; //控件的亮色
this.btnBgColor = "#E6E6FA"; //控件的按钮背景色
this.wordColor = "#000080"; //控件的文字颜色
this.wordDark = "#DCDCDC"; //控件的暗文字颜色
this.dayBgColor = "#F5F5FA"; //日期数字背景色
this.todayColor = "#FF0000"; //今天在日历上的标示背景色
this.DarkBorder = "#D4D0C8"; //日期显示的立体表达色
} var WebCalendar = new WebCalendar();
function calendar() //主调函数
{
var e = window.event.srcElement; writeIframe();
var o = WebCalendar.calendar.style; WebCalendar.eventSrc = e;
if (arguments.length == 0) WebCalendar.objExport = e;
else WebCalendar.objExport = eval(arguments[0]);
WebCalendar.iframe.tableWeek.style.cursor = WebCalendar.drag ? "move" : "default";
var t = e.offsetTop, h = e.clientHeight, l = e.offsetLeft, p = e.type;
while (e = e.offsetParent){t += e.offsetTop; l += e.offsetLeft;}
o.display = ""; WebCalendar.iframe.document.body.focus();
var cw = WebCalendar.calendar.clientWidth, ch = WebCalendar.calendar.clientHeight;
var dw = document.body.clientWidth, dl = document.body.scrollLeft, dt = document.body.scrollTop;

if (document.body.clientHeight + dt - t - h >= ch) o.top = (p=="image")? t + h : t + h + 6;
else o.top = (t - dt < ch) ? ((p=="image")? t + h : t + h + 6) : t - ch;
if (dw + dl - l >= cw) o.left = l; else o.left = (dw >= cw) ? dw - cw + dl : dl;
if (!WebCalendar.timeShow) WebCalendar.dateReg = /^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2})$/;
else WebCalendar.dateReg = /^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2}) (\d{1,2}):(\d{1,2}):(\d{1,2})$/;
try{
if (WebCalendar.objExport.value.trim() != ""){
WebCalendar.dateStyle = WebCalendar.objExport.value.trim().match(WebCalendar.dateReg);
if (WebCalendar.dateStyle == null)
{
WebCalendar.thisYear = new Date().getFullYear();
WebCalendar.thisMonth = new Date().getMonth()+ 1;
WebCalendar.thisDay = new Date().getDate();
alert("原文本框里的日期有错误！\n可能与你定义的显示时分秒有冲突！");
writeCalendar(); return false;
}
else
{
WebCalendar.thisYear = parseInt(WebCalendar.dateStyle[1], 10);
WebCalendar.thisMonth = parseInt(WebCalendar.dateStyle[3], 10);
WebCalendar.thisDay = parseInt(WebCalendar.dateStyle[4], 10);
WebCalendar.inputDate = parseInt(WebCalendar.thisDay, 10) +"/"+ parseInt(WebCalendar.thisMonth, 10) +"/"+
parseInt(WebCalendar.thisYear, 10); writeCalendar();
}
} else writeCalendar();
} catch(e){writeCalendar();}
}
function funMonthSelect() //月份的下拉框
{
var m = isNaN(parseInt(WebCalendar.thisMonth, 10)) ? new Date().getMonth() + 1 : parseInt(WebCalendar.thisMonth);
var e = WebCalendar.iframe.document.forms[0].tmpMonthSelect;
for (var i=1; i<13; i++) e.options.add(new Option(i +"月", i));
e.style.display = ""; e.value = m; e.focus(); window.status = e.style.top;
}
function funYearSelect() //年份的下拉框
{
var n = WebCalendar.yearFall;
var e = WebCalendar.iframe.document.forms[0].tmpYearSelect;
var y = isNaN(parseInt(WebCalendar.thisYear, 10)) ? new Date().getFullYear() : parseInt(WebCalendar.thisYear);
y = (y <= 1000)? 1000 : ((y >= 9999)? 9999 : y);
var min = (y - n >= 1000) ? y - n : 1000;
var max = (y + n <= 9999) ? y + n : 9999;
min = (max == 9999) ? max-n*2 : min;
max = (min == 1000) ? min+n*2 : max;
for (var i=min; i<=max; i++) e.options.add(new Option(i +"年", i));
e.style.display = ""; e.value = y; e.focus();
}
function prevM() //往前翻月份
{
WebCalendar.thisDay = 1;
if (WebCalendar.thisMonth==1)
{
WebCalendar.thisYear--;
WebCalendar.thisMonth=13;
}
WebCalendar.thisMonth--; writeCalendar();
}
function nextM() //往后翻月份
{
WebCalendar.thisDay = 1;
if (WebCalendar.thisMonth==12)
{
WebCalendar.thisYear++;
WebCalendar.thisMonth=0;
}
WebCalendar.thisMonth++; writeCalendar();
}
function prevY(){WebCalendar.thisDay = 1; WebCalendar.thisYear--; writeCalendar();}//往前翻 Year
function nextY(){WebCalendar.thisDay = 1; WebCalendar.thisYear++; writeCalendar();}//往后翻 Year
function hiddenSelect(e){for(var i=e.options.length; i>-1; i--)e.options.remove(i); e.style.display="none";}
function getObjectById(id){ if(document.all) return(eval("document.all."+ id)); return(eval(id)); }
function hiddenCalendar(){getObjectById("meizzCalendarLayer").style.display = "none";};
function appendZero(n){return(("00"+ n).substr(("00"+ n).length-2));}//日期自动补零程序
function String.prototype.trim(){return this.replace(/(^\s*)|(\s*$)/g,"");}
function dayMouseOver()
{
this.className = "over";
this.style.backgroundColor = WebCalendar.darkColor;
if(WebCalendar.day[this.id.substr(8)].split("/")[1] == WebCalendar.thisMonth)
this.style.color = WebCalendar.lightColor;
}
function dayMouseOut()
{
this.className = "out"; var d = WebCalendar.day[this.id.substr(8)], a = d.split("/");
this.style.removeAttribute('backgroundColor');
if(a[1] == WebCalendar.thisMonth && d != WebCalendar.today)
{
if(WebCalendar.dateStyle && a[0] == parseInt(WebCalendar.dateStyle[4], 10))
this.style.color = WebCalendar.lightColor;
this.style.color = WebCalendar.wordColor;
}
}
function writeCalendar() //对日历显示的数据的处理程序
{
var y = WebCalendar.thisYear;
var m = WebCalendar.thisMonth;
var d = WebCalendar.thisDay;
WebCalendar.daysMonth[1] = (0==y%4 && (y%100!=0 || y%400==0)) ? 29 : 28;
if (!(y<=9999 && y >= 1000 && parseInt(m, 10)>0 && parseInt(m, 10)<13 && parseInt(d, 10)>0)){
alert("对不起，你输入了错误的日期！");
WebCalendar.thisYear = new Date().getFullYear();
WebCalendar.thisMonth = new Date().getMonth()+ 1;
WebCalendar.thisDay = new Date().getDate(); }
y = WebCalendar.thisYear;
m = WebCalendar.thisMonth;
d = WebCalendar.thisDay;
WebCalendar.iframe.meizzYearHead.innerText = y +" 年";
WebCalendar.iframe.meizzYearMonth.innerText = parseInt(m, 10) +" 月";
WebCalendar.daysMonth[1] = (0==y%4 && (y%100!=0 || y%400==0)) ? 29 : 28; //闰年二月为29天
var w = new Date(y, m-1, 1).getDay();
var prevDays = m==1 ? WebCalendar.daysMonth[11] : WebCalendar.daysMonth[m-2];
for(var i=(w-1); i>=0; i--) //这三个 for 循环为日历赋数据源（数组 WebCalendar.day）格式是 d/m/yyyy
{
WebCalendar.day[i] = prevDays +"/"+ (parseInt(m, 10)-1) +"/"+ y;
if(m==1) WebCalendar.day[i] = prevDays +"/"+ 12 +"/"+ (parseInt(y, 10)-1);
prevDays--;
}
for(var i=1; i<=WebCalendar.daysMonth[m-1]; i++) WebCalendar.day[i+w-1] = i +"/"+ m +"/"+ y;
for(var i=1; i<39-w-WebCalendar.daysMonth[m-1]+1; i++)
{
WebCalendar.day[WebCalendar.daysMonth[m-1]+w-1+i] = i +"/"+ (parseInt(m, 10)+1) +"/"+ y;
if(m==12) WebCalendar.day[WebCalendar.daysMonth[m-1]+w-1+i] = i +"/"+ 1 +"/"+ (parseInt(y, 10)+1);
}
for(var i=0; i<39; i++) //这个循环是根据源数组写到日历里显示
{
var a = WebCalendar.day[i].split("/");
WebCalendar.dayObj[i].innerText = a[0];
WebCalendar.dayObj[i].title = a[2] +"-"+ appendZero(a[1]) +"-"+ appendZero(a[0]);
WebCalendar.dayObj[i].bgColor = WebCalendar.dayBgColor;
WebCalendar.dayObj[i].style.color = WebCalendar.wordColor;
if ((i<10 && parseInt(WebCalendar.day[i], 10)>20) || (i>27 && parseInt(WebCalendar.day[i], 10)<12))
WebCalendar.dayObj[i].style.color = WebCalendar.wordDark;
if (WebCalendar.inputDate==WebCalendar.day[i]) //设置输入框里的日期在日历上的颜色
{WebCalendar.dayObj[i].bgColor = WebCalendar.darkColor; WebCalendar.dayObj[i].style.color = WebCalendar.lightColor;}
if (WebCalendar.day[i] == WebCalendar.today) //设置今天在日历上反应出来的颜色
{WebCalendar.dayObj[i].bgColor = WebCalendar.todayColor; WebCalendar.dayObj[i].style.color = WebCalendar.lightColor;}
}
}
function returnDate() //根据日期格式等返回用户选定的日期
{
if(WebCalendar.objExport)
{
var returnValue;
var a = (arguments.length==0) ? WebCalendar.day[this.id.substr(8)].split("/") : arguments[0].split("/");
var d = WebCalendar.format.match(/^(\w{4})(-|\/)(\w{1,2})\2(\w{1,2})$/);
if(d==null){alert("你设定的日期输出格式不对！\r\n\r\n请重新定义 WebCalendar.format ！"); return false;}
var flag = d[3].length==2 || d[4].length==2; //判断返回的日期格式是否要补零
returnValue = flag ? a[2] +d[2]+ appendZero(a[1]) +d[2]+ appendZero(a[0]) : a[2] +d[2]+ a[1] +d[2]+ a[0];
if(WebCalendar.timeShow)
{
var h = new Date().getHours(), m = new Date().getMinutes(), s = new Date().getSeconds();
returnValue += flag ? " "+ appendZero(h) +":"+ appendZero(m) +":"+ appendZero(s) : " "+ h +":"+ m +":"+ s;
}
WebCalendar.objExport.value = returnValue;
hiddenCalendar();
}
}
function document.onclick()
{
if(WebCalendar.eventSrc != window.event.srcElement) hiddenCalendar();
}

Tags - js

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Thu, 01 Jan 1970 00:00:00 +0000

沧海一粟

javascript常用备忘

[评论] javascript常用备忘