[JS]js得现年月日联动
[JS]js得现年月日联动
[JS]js得现年月日联动
- var StartYear = 1980;
- var EndYear = 2500;
- function MonthAndDay()
- {
- this.initDDL = function(objYear,objMonth,objDay,hidYear,hidMonth,hidDay)
- {
- this.init(objYear,objMonth,objDay,hidYear,hidMonth,hidDay);
- this.SelectChange(objYear,objMonth,objDay,hidYear,hidMonth,hidDay);
- }
- this.init = function(objYear,objMonth,objDay,hidYear,hidMonth,hidDay)
- {
- var year = document.getElementById(objYear);
- var month = document.getElementById(objMonth);
- var day = document.getElementById(objDay);
- var me=this;
- if(year.length == 1)
- {
- year.options[0] = new Option("不限","");
- for(var i = StartYear; i < EndYear; i++)
- {
- year.options[year.length] = new Option(i,i);
- }
- }
- me.yearOptionsChange(document.all[objYear].value,objYear,objMonth,objDay);
- me.monthOptionsChange(document.all[objYear].value,document.getElementById(objMonth).value,objDay);
- }
- this.yearOptionsChange = function(selectValue,objYear,objMonth,objDay)
- {
- var month = document.getElementById(objMonth);
- var day = document.getElementById(objDay);
- var me=this;
- month.length = 0;
- day.length = 0;
- month.options[0]=new Option("不限",'');
- day.options[0]=new Option("不限",'');
- if(selectValue == "")
- {
- return ;
- }
- for(var i = 1; i < 13; i++)
- {
- month.options[month.length] = new Option((i < 10 ? ("0" + i) : i),i);
- }
- me.monthOptionsChange(document.getElementById(objYear).value,document.getElementById(objMonth).value,objDay);
- }
- this.monthOptionsChange = function(yearSelectValue,monthSelectValue,objDay)
- {
- var day = document.getElementById(objDay);
- var endDay;
- day.length = 0;
- day.options[0]=new Option("不限",'');
- if(monthSelectValue == "")
- {
- return;
- }
- if((parseInt(yearSelectValue) % 400 == 0) || (parseInt(yearSelectValue) % 4 == 0 && parseInt(yearSelectValue) % 100 != 0))
- {
- if(parseInt(monthSelectValue) == "2")
- {
- endDay = 29;
- }
- }
- else
- {
- if(parseInt(monthSelectValue) == "2")
- {
- endDay = 28;
- }
- }
- switch(parseInt(monthSelectValue))
- {
- case 1:
- case 3:
- case 5:
- case 7:
- case 8:
- case 10:
- case 12:
- endDay = 31;
- break;
- case 4:
- case 6:
- case 9:
- case 11:
- endDay = 30;
- break;
- }
- for(var i = 1; i <= endDay; i++)
- {
- day.options[day.length] = new Option((i < 10 ? ("0" + i) : i),i);
- }
- }
- this.SelectChange = function(objYear,objMonth,objDay,hidYear,hidMonth,hidDay)
- {
- var year = document.all[objYear];
- var month = document.all[objMonth];
- var day = document.all[objDay];
- var me = this;
- year.onchange = function()
- {
- me.yearOptionsChange(this.options[this.selectedIndex].value,objYear,objMonth,objDay);
- document.all[hidYear].value = this.options[this.selectedIndex].value;
- document.all[hidMonth].value = "";
- document.all[hidDay].value = "";
- }
- month.onchange = function()
- {
- me.monthOptionsChange(document.all[hidYear].value,this.options[this.selectedIndex].value,objDay);
- document.all[hidMonth].value = this.options[this.selectedIndex].value;
- document.all[hidDay].value = "";
- }
- day.onchange = function()
- {
- document.all[hidDay].value = day.selectValue;
- }
- }
- }
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