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JavaScript时间操作之年月日星期级联操作

时间:2017-01-12 01:49来源:网络整理 作者:51自学网
具体代码: htmlheadmeta http-equiv="Content-Type" content="text/html; charset=GB2312"title年月日星期级联/title/headbody topmargin="10" leftmargin="0"formselect id=year onchange="toDate();"scriptfor(i=1970;i=2010;i++)document.write("optio

JavaScript时间操作之年月日星期级联操作

具体代码:

<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=GB2312"> <title>年月日星期级联</title> </head> <body topmargin="10" leftmargin="0"> <form> <select id=year onchange="toDate();"> <script>for(i=1970;i<=2010;i++)document.write("<option>"+i+"</option>")</script> </select> <select id=month onchange="toDate();"> <script>for(i=1;i<=12;i++)document.write("<option>"+i+"</option>")</script> </select> <select id=day onchange="toDay();"></select> <input name=weekday> </form> <script type="text/javascript"> var arr="日一二三四五六".split("") function toDate(){ with(document.all){ vYear=parseInt(year.options[year.selectedIndex].text) vMonth=parseInt(month.options[month.selectedIndex].text) day.length=0; for(i=0;i<(new Date(vYear,vMonth,0)).getDate();i++){day.options[day.length++].value=day.length;day.options[day.length-1].text=day.length;} } toDay(); } function toDay(){ vDay=parseInt(document.all.day.options[document.all.day.selectedIndex].value) document.all("weekday").value="星期"+arr[new Date(vYear,vMonth-1,vDay).getDay()] } window.onload=toDate; </script> </body> </html>

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