日期星座的级联显示代码,JS代码库,德仔网

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【JS】日期星座的级联显示
作者:珍冰 / 发布于2014/10/13/ 572

	function birthdayOnchange(obj) {
	 var year = $("<%= DDL_Year.ClientID%>").value;

	 if (year == "year")
	 return;
	 else
	 year = parseInt(year, 10);

	
	 var month = $("<%=DDL_Month.ClientID%>").value;
	 if (month == "month")
	 return;
	 else
	 month = parseInt(month, 10);

	 var day = $("<%=DDL_Day.ClientID%>").value;
	 var wholeday = getDays(year, month);

	 if (1) {
	 var options = $("<%=DDL_Day.ClientID%>").options;
	 for (var i = 1; i <= wholeday; i++) {
	 var j = i.toString();
	 j = j.length == 1 ? "0" + j : j;
	 options.length = i + 1;
	 options[i].value = j;
	 options[i].text = j;
	 if (day <= wholeday && i == day) {
	 options[i].selected = true;
	 }
	 }
	 }
	 }

	function getDays(year, month) {
	 var dayarr = new Array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);

	 if (month == 2) {
	 if ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0 || year < 1900)
	 return 29;
	 else
	 return dayarr[month - 1];
	 }
	 else {
	 return dayarr[month - 1];
	 }
	 }

	 function adjustAstro() {
	 var v_astro = getAstro($("<%=DDL_Month.ClientID%>").value, $("<%=DDL_Day.ClientID%>").value);
	 $("<%=astro.ClientID %>").options[0].text = v_astro;
	 }

	 function getAstro(v_month, v_day) {
	 v_month = parseInt(v_month, 10)
	 v_day = parseInt(v_day, 10);

	 if ((v_month == 12 && v_day >= 22)
	 || (v_month == 1 && v_day <= 20)) {
	 return "魔羯座";
	 }
	 else if ((v_month == 1 && v_day >= 21)
	 || (v_month == 2 && v_day <= 19)) {
	 return "水瓶座";
	 }
	 else if ((v_month == 2 && v_day >= 20)
	 || (v_month == 3 && v_day <= 20)) {
	 return "双鱼座";
	 }
	 else if ((v_month == 3 && v_day >= 21)
	 || (v_month == 4 && v_day <= 20)) {
	 return "白羊座";
	 }
	 else if ((v_month == 4 && v_day >= 21)
	 || (v_month == 5 && v_day <= 21)) {
	 return "金牛座";
	 }
	 else if ((v_month == 5 && v_day >= 22)
	 || (v_month == 6 && v_day <= 21)) {
	 return "双子座";
	 }
	 else if ((v_month == 6 && v_day >= 22)
	 || (v_month == 7 && v_day <= 22)) {
	 return "巨蟹座";
	 }
	 else if ((v_month == 7 && v_day >= 23)
	 || (v_month == 8 && v_day <= 23)) {
	 return "狮子座";
	 }
	 else if ((v_month == 8 && v_day >= 24)
	 || (v_month == 9 && v_day <= 23)) {
	 return "处女座";
	 }
	 else if ((v_month == 9 && v_day >= 24)
	 || (v_month == 10 && v_day <= 23)) {
	 return "天秤座";
	 }
	 else if ((v_month == 10 && v_day >= 24)
	 || (v_month == 11 && v_day <= 22)) {
	 return "天蝎座";
	 }
	 else if ((v_month == 11 && v_day >= 23)
	 || (v_month == 12 && v_day <= 21)) {
	 return "射手座";
	 }
	 return "";
	 }

	

	<DIV>出生日期：</DIV>
	 <DIV>
	 <asp:DropDownList ID="DDL_Year" runat="server" onchange="birthdayOnchange(this);"></asp:DropDownList> 年
	 <asp:DropDownList ID="DDL_Month" runat="server" onchange="birthdayOnchange(this);adjustAstro();"></asp:DropDownList> 月
	 <asp:DropDownList ID="DDL_Day" runat="server" onchange="adjustAstro();"></asp:DropDownList> 日
	 </DIV>

	 <DIV>星座：</DIV>
	 <DIV>
	 <SELECT id=astro disabled name=astro runat="server">
	 <OPTION selected>处女座</OPTION>
	 </SELECT>
	 </DIV>
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　级联显示　　日期星座　
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