【javascript 实现日历式日期选择】;
date.js代码：
| /*=======Calendar.js=======By Jiang Hongbin=======*/ var months = new Array("一月", "二月", "三月", "四月", "五月", "六月", "七月", "八月", "九月", "十月", "十一月", "十二月") var daysInMonth = new Array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31) var days = new Array("日","一", "二", "三", "四", "五", "六") var today document.writeln("<div id=’Calendar’ style=’position:absolute; z-index:1; visibility: hidden; filter:"progid:DXImageTransform.Microsoft.Shadow(direction=135,color=#999999,strength=3)"’></div>"); function getDays(month, year) {; ;//下面的这段代码是判断当前是否是闰年的; ;if (1 == month); ; return ((0 == year % 4) && (0 != (year % 100))) || (0 == year % 400) ? 29 : 28 ;else; ; return daysInMonth[month] }; function getToday(); {; ;//得到今天的年,月,日; ;this.now = new Date() ;this.year = this.now.getFullYear() ;this.month = this.now.getMonth() ;this.day = this.now.getDate() } function getStringDay(str); {; ;//得到输入框的年,月,日 ;var str=str.split("-") ; ;this.now = new Date(parseFloat(str[0]),parseFloat(str[1])-1,parseFloat(str[2])) ;this.year = this.now.getFullYear() ;this.month = this.now.getMonth() ;this.day = this.now.getDate() } function newCalendar() {; ;var parseYear = parseInt(document.all.Year.options[document.all.Year.selectedIndex].value) ;var newCal = new Date(parseYear, document.all.Month.selectedIndex, 1) ;var day = -1 ;var startDay = newCal.getDay() ;var daily = 0 ; ;if ((today.year == newCal.getFullYear()) &&(today.month == newCal.getMonth())); ; day = today.day ;var tableCal = document.all.calendar ;var intDaysInMonth =getDays(newCal.getMonth(), newCal.getFullYear()); ;for (var intWeek = 1; intWeek < tableCal.rows.length;intWeek++); ; for (var intDay = 0;intDay < tableCal.rows[intWeek].cells.length;intDay++); ; {; var cell = tableCal.rows[intWeek].cells[intDay] if ((intDay == startDay) && (0 == daily)); ;daily = 1 ;; if(day==daily) //今天，调用今天的Class; { ;cell.style.background=’#6699CC&rsquo ;cell.style.color=’#FFFFFF&rsquo ;//cell.style.fontWeight=’bold&rsquo } else if(intDay==6) //周六; ;cell.style.color=’green’ else if (intDay==0) //周日; ;cell.style.color=’red&rsquo ; if ((daily > 0) && (daily <= intDaysInMonth)); {; ;cell.innerText = daily ;daily++ }; else; ;cell.innerText = "" ; }; }; function GetDate(InputBox) {; ;var sDate ;//这段代码处理鼠标点击的情况; ;if (event.srcElement.tagName == "TD"); ; if (event.srcElement.innerText != ""); ; {; sDate = document.all.Year.value + "-" + document.all.Month.value + "-" + event.srcElement.innerText; eval("document.all."+InputBox).value=sDate; HiddenCalendar(); ; }; }; function HiddenCalendar() { ;//关闭选择窗口 ;document.all.Calendar.style.visibility=’hidden&rsquo } function ShowCalendar(InputBox) { ;var x,y,intLoop,intWeeks,intDays; ;var DivContent; ;var year,month,day; ;//var o=document.getElementById(InputBox); ;var o=InputBox; ;var oid=o.id; ;var thisyear; //真正的今年年份 ; ;if(!oid)oid=o.name; ; ;thisyear=new getToday(); ;thisyear=thisyear.year; ; ;today = o.value; ;if(isDate(today)) ; today = new getStringDay(today); ;else ; today = new getToday() ; ;//显示的位置 ;x=o.offsetLeft; ;y=o.offsetTop; ;while(o=o.offsetParent) ;{ ; x+=o.offsetLeft; ; y+=o.offsetTop; ;} ;document.all.Calendar.style.left=x+2; ;document.all.Calendar.style.top=y+20; ;document.all.Calendar.style.visibility="visible" ; ;//下面开始输出日历表格(border-color:#9DBAF7) ;DivContent="<table border=’0’ cellspacing=’0’ style=’border:1px solid #0066FF; background-color:#EDF2FC’>" ;DivContent+="<tr>" ;DivContent+="<td style=’border-bottom:1px solid #0066FF; background-color:#C7D8FA’>" ; ;//年 ;DivContent+="<select name=’Year’ id=’Year’ onChange=’newCalendar()’ style=’font-family:Verdana; font-size:12px’>" ;for (intLoop = thisyear - 100; intLoop < (thisyear + 2); intLoop++); ; DivContent+="<option value= " + intLoop + " " + (today.year == intLoop ? "Selected" : "") + ">" + intLoop + "</option>" ;DivContent+="</select>" ; ;//月 ;DivContent+="<select name=’Month’ id=’Month’ onChange=’newCalendar()’ style=’font-family:Verdana; font-size:12px’>" ;for (intLoop = 0; intLoop < months.length; intLoop++); ; DivContent+="<option value= " + (intLoop + 1) + " " + (today.month == intLoop ? "Selected" : "") + ">" + months[intLoop] + "</option>" ;DivContent+="</select>" ; ;DivContent+="</td>" ; ;DivContent+="<td style=’border-bottom:1px solid #0066FF; background-color:#C7D8FA; font-weight:bold; font-family:Wingdings 2,Wingdings,Webdings; font-size:16px; padding-top:2px; color:#4477FF; cursor:hand’ align=’center’ title=’关闭’ onClick=’javascript:HiddenCalendar()’>S</td>" ;DivContent+="</tr>" ;DivContent+="<tr><td align=’center’ colspan=’2’>" ;DivContent+="<table id=’calendar’ border=’0’ width=’100%’>" ; ;//星期 ;DivContent+="<tr>" ;for (intLoop = 0; intLoop < days.length; intLoop++); ; DivContent+="<td align=’center’ style=’font-size:12px’>" + days[intLoop] + "</td>" ;DivContent+="</tr>" ; ;//天 ;for (intWeeks = 0; intWeeks < 6; intWeeks++) ;{; ; DivContent+="<tr>" ; for (intDays = 0; intDays < days.length; intDays++); DivContent+="<td onClick=’GetDate("" + oid + "")’ style=’cursor:hand; border-right:1px solid #BBBBBB; border-bottom:1px solid #BBBBBB; color:#215DC6; font-family:Verdana; font-size:12px’ align=’center’></td>" ; DivContent+="</tr>" ;}; ;DivContent+="</table></td></tr></table>" ;document.all.Calendar.innerHTML=DivContent; ;newCalendar(); } function isDate(dateStr) {; ;var datePat = /^(d{4})(-)(d{1,2})(-)(d{1,2})$/; ;var matchArray = dateStr.match(datePat); ;if (matchArray == null) return false ;var month = matchArray[3]; ;var day = matchArray[5] ;var year = matchArray[1] ;if (month < 1 || month > 12) return false ;if (day < 1 || day > 31) return false ;if ((month==4 || month==6 || month==9 || month==11) && day==31) return false ;if (month == 2) ;{ ; var isleap = (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0)) ; if (day > 29 || (day==29 && !isleap)) return false ;}; ;return true; } ; |
HTML中的写法：
|
<script type="text/javascript" src="js/date.js"></script> |
