a.asp代码:
<form method="POST" name="form1" autocomplete=off>
<p align="center"><input type="text" name="T1" size="20" onClick="JavaScript:window.open('day.asp?form='+this.form.name+'&field='+this.name+'&oldDate='+this.value,'','directorys=no,toolbar=no,status=no,menubar=no,scrollbars=no,resizable=no,width=250,height=200,top=220,left=250');">
<input type="text" name="T2" size="20" onclick="form1.T3.value=this.form.name;form1.T4.value=this.name;"><input type="text" name="T3" size="20" onClick="JavaScript:window.open('day.asp?form='+this.form.name+'&field='+this.name+'&oldDate='+this.value,'','directorys=no,toolbar=no,status=no,menubar=no,scrollbars=no,resizable=no,width=250,height=200,top=220,left=250');"><input type="text" name="T4" size="20" onClick="JavaScript:window.open('day.asp?form='+this.form.name+'&field='+this.name+'&oldDate='+this.value,'','directorys=no,toolbar=no,status=no,menubar=no,scrollbars=no,resizable=no,width=250,height=200,top=220,left=250');"><input type="submit" value="提交" name="B1"><input type="reset" value="重置" name="B2"></p>
</form>
day.asp代码(也可以用其他现成的日历控件,注意参数。本例调用的是服务器的时间):
<html>
<head>
<title>选择日期 </title>
<style type=text/css>
<!--
body{margin:0;font-size:9pt;color:#5E639B}
td{font-size:9pt;color:#000000}
a:link {color:#000000;text-decoration: none}
a:visited {color:#000000;text-decoration: none}
a:active {color:#000000;text-decoration: none}
a:hover { color:#ff3333;text-decoration: none}
-->
</style>
<Script Language="JavaScript">
function getDay(v){
window.opener.document.<%=request.querystring("form")%>.<%=request.querystring("field")%>.value=v;
window.opener.document.<%=request.querystring("form")%>.<%=request.querystring("field")%>.focus();
window.opener=null;
window.close();
return false;
}
</Script>
</head>
<body bgcolor=#ffffff onBlur="window.focus()">
<%
oldDate=request("oldDate")
if not isDate(oldDate) then oldDate=date
yy=year(cdate(oldDate))
mm=month(cdate(oldDate))
if request("yy")<>"" then yy=request("yy")
if request("mm")<>"" then mm=request("mm")
if yy="" then yy=year(date)
if mm="" then mm=month(date)
if mm>12 then mm=1:yy=yy+1
if mm<1 then mm=12:yy=yy-1
dim m(12)
m(1)=31
m(3)=31
m(5)=31
m(7)=31
m(8)=31
m(10)=31
m(12)=31
m(2)=28
m(4)=30
m(6)=30
m(9)=30
m(11)=30
if (yy mod 4=0 and yy mod 100<>0) or yy mod 400=0 then m(2)=29
mms=m(mm)
week1=(weekday(cdate(yy & "-" & mm & "-1"))-1)
%>
<table width=250 cellspacing=1 cellpadding=0 bgcolor=#FFDFDF align=center>
<tr>
<td colspan=7 align=center>
<table width=100% height=20 cellspacing=0 cellpadding=0>
<tr height=20>
<td width=30 align=center>
<a href=day.asp?form=<%=request("form")%>&field=<%=request("field")%>&yy=<%=(yy-1)%>&mm=<%=mm%>>
<font face=webdings style=color:#000000 title="上一年">7</font>
</a>
<td width=30 align=center>
<a href=day.asp?form=<%=request("form")%>&field=<%=request("field")%>&mm=<%=(mm-1)%>&yy=<%=yy%>>
<font face=webdings style=color:#000000 title="上一月">3</font>
</a>
<td width=130 align=center style="FONT:9pt Verdana,Geneva,sans-serif;color:#CD0101">
<b><%=yy%> 年 <%=mm%> 月</b>
<td width=30 align=center>
<a href=day.asp?form=<%=request("form")%>&field=<%=request("field")%>&mm=<%=(mm+1)%>&yy=<%=yy%>>
<font face=webdings style=color:#000000 title="下一月">4</font>
</a>
<td width=30 align=center>
<a href=day.asp?form=<%=request("form")%>&field=<%=request("field")%>&yy=<%=(yy+1)%>&mm=<%=mm%>>
<font face=webdings style=color:#000000 title="下一年">8</font>
</a>
</table>
<tr bgcolor=#ffffff height=20>
<td width=35 align=center bgcolor=#FFF4F4 style=color:#ff6633>日
<td width=35 align=center bgcolor=#FFF4F4>一
<td width=35 align=center bgcolor=#FFF4F4>二
<td width=35 align=center bgcolor=#FFF4F4>三
<td width=35 align=center bgcolor=#FFF4F4>四
<td width=35 align=center bgcolor=#FFF4F4>五
<td width=35 align=center bgcolor=#FFF4F4>六
<%
if week1<>0 then
response.write "<tr>"
for i=1 to week1
response.write "<td width=35 height=20 bgcolor=#ffffff> "
next
end if
for i=1 to mms
if (i+week1-1) mod 7=0 then response.write "<tr>"
response.write "<td width=35 height=20 align=center bgcolor=#ffffff>"
if cdate(yy & "-" & mm & "-" & i)=date() then
%>
<input type=button value=<%=i%>
style="BORDER:#CD0101 1px groove;width:30;height:16;font-size:9pt;background-color:#FFD9D9;color:#CD0101"
onclick="javascript:getDay('<%=yy%>-<%=mm%>-<%=i%>');" title="<%=yy%>年<%=mm%>月<%=i%>日（今天）">
<%
else
%>
<input type=button value=<%=i%>
style="BORDER:#000000 1px groove;width:30;height:16;font-size:9pt;background-color:#ffffff;color:#000000"
onclick="javascript:getDay('<%=yy%>-<%=mm%>-<%=i%>');" title="<%=yy%>年<%=mm%>月<%=i%>日">
<%
end if
next
if (mms+week1) mod 7<>0 then
for i=1 to (7-((mms+week1) mod 7))
response.write "<td width=35 height=20 bgcolor=#ffffff> "
next
end if
%>
</table><br>
<div align=center><a href="javascript:window.close()">〖关闭本窗口〗</a></div>
</body>
</html>