A simple way to implement a calendar with jQuery_jquery
The example in this article describes how to simply implement a calendar with jQuery. Share it with everyone for your reference. The specific analysis is as follows:
The principle is quite simple. First, calculate how many days there are in a month, then calculate the day of the week when the first day of the month is, and then just sort it out in order.
<!DOCTYPE HTML>
<html lang="zh-CN">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0;" />
<meta name="format-detection" content="telephone=no" />
<title>tryMyOwnCalendar</title>
<script src="js/jquery.min.js" language="javascript"></script>
<style>
*{ margin:0; padding:0;}
.choosecal{ width:96%; margin:3% auto; overflow:hidden;}
.ccaltop{ width:100%; border-radius:5px; }
.caltline1,.caltline2{ width:94%; background-color:#F90; overflow:hidden; padding:2% 3%;}
.caltline1 p,.caltline2 p{ float:left; width:10%; font-weight:700; text-align:right;}
.caltline1 .bookdate{ width:90%; text-align:left;}
.caltline2{ background-color:#FFF; display:none;}
.caltline2 p{ width:20%;}
.caltline2 .datetext{ width:35%; border:1px solid #000;
background-color:#FFF; font-weight:700;}
.inputdate{ color:#F60;}
.calender{ width:100%; margin-top:3%; overflow:hidden; display:none;}
.selectmouth{ background-color:#F30; width:94%;
overflow:hidden;padding:2% 3%;border-radius:5px 5px 0 0;}
.selectmouth p{ float:left; width:33%; color:#FFF;
font-weight:700; cursor:pointer;}
.selectmouth .selectdate{ width:100%; background-color:#F30;
border:none; color:#FFF; font-weight:700; text-align:center;}
.data_table{ width:100%;border:1px solid #cccccc;
border-collapse:collapse; }
.data_table thead{ background-color:#333;}
.data_table thead td{ color:#FFF; text-align:center;
border:1px solid #333;border-collapse:collapse; padding:1% 0;
}
.data_table tbody td{border:1px solid #cccccc;
border-collapse:collapse;
text-align:center;color:#0C6;padding:1% 0;
}
.data_table tbody td.orderdate{ color:#000;}
.data_table tbody td.tdselect{ color:#fff;background-color:#999}
</style>
</head>
<body>
<div class="choosecal">
<div class="ccaltop">
<div class="caltline1">
<p class="bookdate">选择入住日期……</p>
<p><img src="images/next.png" /></p>
</div>
<div class="caltline2">
<p style=" width:80%; text-align:left;">
<input type="text" value=""
class="datetext datetoday inputdate" readonly=readonly />
至
<input type="text" value="" class="datetext dateendday"
readonly=readonly />
</p>
<p><input type="button" value="确定" class="btsure" /></p>
</div>
</div>
<div class="calender">
<div class="selectmouth">
<p style="text-align:right" class="lastmonth"><</p>
<p><input type="text" class="selectdate" value="2014年2月" readonly=readonly /></p>
<p class="nextmonth">></p>
</div>
<table class="data_table" cellspacing="0px">
<thead>
<tr>
<td>日</td><td>一</td><td>二</td><td>三</td><td>四</td><td>五</td><td>六</td>
</tr>
</thead>
<tbody>
<tr>
<td>1</td><td></td><td></td><td></td><td></td><td></td><td></td>
</tr>
<tr>
<td>1</td><td></td><td></td><td></td><td></td><td></td><td></td>
</tr>
<tr>
<td>1</td><td></td><td></td><td></td><td></td><td></td><td></td>
</tr>
<tr>
<td>1</td><td></td><td></td><td></td><td></td><td></td><td></td>
</tr>
<tr>
<td>1</td><td></td><td></td><td></td><td></td><td></td><td></td>
</tr>
<tr>
<td>1</td><td></td><td></td><td></td><td></td><td></td><td></td>
</tr>
</tbody>
</table>
</div>
</div>
<script>
window.onload=function(){
var mydate=new Date();
var thisyear=mydate.getFullYear();
var thismonth=mydate.getMonth()+1;
var thisday=mydate.getDate();
var mydate1=new Date();
var thisyear1=mydate1.getFullYear();
var thismonth1=mydate1.getMonth()+1;
var thisday1=mydate1.getDate();
var selectday=thisday;
//标记日期
var indate=thisday;
//入住日期
var inmonth=thismonth;
//入住月份
var outdate=thisday+1;
//退房日期
var outmonth=thismonth;
//退房月份
var datetxt="datetoday";
var datefirst;
var datesecond;
function initdata(){
//日期初始填充
var tdheight=jQuery(".data_table tbody tr").eq(0).find("td").height();
jQuery(".data_table tbody td").css("height",tdheight);
jQuery(".selectdate").val(thisyear+"年"+thismonth+"月");
var days=getdaysinonemonth(thisyear,thismonth);
var weekday=getfirstday(thisyear,thismonth);
setcalender(days,weekday);
markdate(thisyear,thismonth,selectday);
orderabledate(thisyear,thismonth,thisday);
}
initdata();
jQuery(".datetoday").val(thisyear+"-"+thismonth+"-"+thisday);
jQuery(".dateendday").val(thisyear+"-"+thismonth+"-"+(thisday+1));
function orderabledate(thisyear,thismonth,thisday){
//能预订的日期
if(thisyear<thisyear1){
jQuery(".data_table tbody td").addClass("orderdate");
jQuery(".data_table tbody td").removeClass("usedate");
}else if(thisyear==thisyear1){
if(thismonth<thismonth1){
jQuery(".data_table tbody td").addClass("orderdate");
jQuery(".data_table tbody td").removeClass("usedate");
}else if(thismonth==thismonth1){
for(var j=0;j<6;j++){
for(var i=0;i<7;i++){
var tdhtml=jQuery(".data_table tbody tr").eq(j).find("td").eq(i).html();
if(tdhtml<thisday){
jQuery(".data_table tbody tr").eq(j).find("td").eq(i).addClass("orderdate");
jQuery(".data_table tbody tr").eq(j).find("td").eq(i).removeClass("usedate");
}else{
jQuery(".data_table tbody tr").eq(j).find("td").eq(i).removeClass("orderdate");
}
}
}
}else{
jQuery(".data_table tbody td").removeClass("orderdate");
}
}else{
jQuery(".data_table tbody td").removeClass("orderdate");
}
}
function markdate(thisyear,thismonth,thisday){
//标记日期
var datetxt=thisyear+"年"+thismonth+"月";
var thisdatetxt=thisyear1+"年"+thismonth1+"月";
jQuery(".data_table td").removeClass("tdselect");
if(datetxt==thisdatetxt){
for(var j=0;j<6;j++){
for(var i=0;i<7;i++){
var tdhtml=jQuery(".data_table tbody tr").eq(j).find("td").eq(i).html();
if(tdhtml==thisday){
jQuery(".data_table tbody tr").eq(j).find("td").eq(i).addClass("tdselect");
}
}
}
}
}
function getdaysinonemonth(year,month){
//算某个月的总天数
month=parseInt(month,10);
var d=new Date(year,month,0);
return d.getDate();
}
function getfirstday(year,month){
//算某个月的第一天是星期几
month=month-1;
var d=new Date(year,month,1);
return d.getDay();
}
function setcalender(days,weekday){
//往日历中填入日期
var a=1;
for(var j=0;j<6;j++){
for(var i=0;i<7;i++){
if(j==0&&i<weekday){
jQuery(".data_table tbody tr").eq(0).find("td").eq(i).html("");
jQuery(".data_table tbody tr").eq(0).find("td").eq(i).removeClass("usedate");
}else{
if(a<=days){
jQuery(".data_table tbody tr").eq(j).find("td").eq(i).html(a);
jQuery(".data_table tbody tr").eq(j).find("td").eq(i).addClass("usedate");
a++;
}else{
jQuery(".data_table tbody tr").eq(j).find("td").eq(i).html("");
jQuery(".data_table tbody tr").eq(j).find("td").eq(i).removeClass("usedate");
a=days+1;
}
}
}
}
}
function errorreset(){
//日期报错后，数据重置
thisyear=thisyear1;
thismonth=thismonth1;
thisday=thisday1;
selectday=thisday1;
indate=thisday1;
inmonth=thismonth1;
outdate=thisday1+1;
outmonth=thismonth1;
initdata();
}
jQuery(".data_table tbody td.usedate").live("click",function(){ //点击日期的效果
var thishtml=parseInt(jQuery(this).html());
jQuery(".data_table td").removeClass("tdselect");
jQuery(this).addClass("tdselect");
selectday=thishtml;
if(datetxt=="datetoday"){
jQuery(".datetoday").val(thisyear+"-"+thismonth+"-"+selectday);
indate=selectday;
inmonth=thismonth;
}else{
jQuery(".dateendday").val(thisyear+"-"+thismonth+"-"+selectday);
outdate=selectday;
outmonth=thismonth;
if(outmonth<inmonth){
alert("日期填写错误");
jQuery(".datetoday").val(thisyear1+"-"+thismonth1+"-"+thisday1);
jQuery(".dateendday").val(thisyear1+"-"+thismonth1+"-"+(thisday1+1));
errorreset();
}else if(outmonth==inmonth){
if(outdate<=indate){
alert("日期填写错误");
jQuery(".datetoday").val(thisyear1+"-"+thismonth1+"-"+thisday1);
jQuery(".dateendday").val(thisyear1+"-"+thismonth1+"-"+(thisday1+1));
errorreset();
}
}
}
});
jQuery(".datetoday").click(function(){
//选择入住日期
datetxt="datetoday";
jQuery(".datetext").removeClass("inputdate");
jQuery(this).addClass("inputdate");
});
jQuery(".dateendday").click(function(){
//选择退房日期
datetxt="dateendday";
jQuery(".datetext").removeClass("inputdate");
jQuery(this).addClass("inputdate");
});
jQuery(".lastmonth").click(function(){
//上一个月
thismonth--;
if(thismonth==0){
thismonth=12;
thisyear--;
}
initdata();
});
jQuery(".nextmonth").click(function(){
//上一个月
thismonth++;
if(thismonth==13){
thismonth=1;
thisyear++;
}
initdata();
});
jQuery(".btsure").click(function(){
//确定日期
var start = new Date($(".datetoday").val());
var end = new Date($(".dateendday").val());
var diff = parseInt((end - start) / (1000*3600*24));
jQuery(".bookdate").html(inmonth+"月"+indate+"日至"+outmonth+"月"+outdate+"日("+diff+")晚")
});
jQuery(".caltline1").toggle(
function(){
jQuery(".caltline2").slideDown(500);
jQuery(".calender").fadeIn(500);
errorreset();
jQuery(".caltline1").find("img").attr("src","images/iconpointup.png");
},
function(){
jQuery(".caltline2").slideUp(500);
jQuery(".calender").fadeOut(500);
jQuery(".caltline1").find("img").attr("src","images/iconpoint.png");
}
);
}
</script>
</body>
</html>I hope this article will be helpful to everyone’s jQuery programming.
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