日期选择，累加，赋值

来源：互联网发布：服务器装centos系统编辑：程序博客网时间：2024/04/29 03:31

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
</head>

<TABLE>
<TR>
    <TD>现在的日期：</TD>
    <TD><input type="text" name="u" value="2009-01-01"></TD>
</TR>
<TR>
    <TD>要加的天数：</TD>
    <TD><INPUT TYPE="text" name="entry" id="d" VALUE="" onkeyup="calculate('d')"></TD>
</TR>
<TR>
    <TD>要加的周数：</TD>
    <TD><INPUT TYPE="text" name="entry" id="w" VALUE="" onkeyup="calculate('w')"></TD>
</TR>
<TR>
    <TD>要加的月数：</TD>
    <TD><INPUT TYPE="text" name="entry" id="m" VALUE="" onkeyup="calculate('m')"></TD>
</TR>
<TR>
    <TD>要加的年数：</TD>
    <TD><INPUT TYPE="text" name="entry" id="y" VALUE="" onkeyup="calculate('y')"></TD>
</TR>
<TR>
    <TD>结果：</TD>
    <TD><input name="twice"></TD>
</TR>

</TABLE>
</form>
<script language="JavaScript">
function   DateAdd(strInterval,   NumDay,   dtDate)   {
var   dtTmp   =   new   Date(dtDate);
if   (isNaN(dtTmp))   dtTmp   =   new   Date();
switch   (strInterval)   {
   case   "s":
     dtTmp =   new   Date(Date.parse(dtTmp)   +   (1000   *   parseInt(NumDay)));
     break;
   case   "n":
     dtTmp =   new   Date(Date.parse(dtTmp)   +   (60000   *   parseInt(NumDay)));
     break;
   case   "h":
     dtTmp =   new   Date(Date.parse(dtTmp)   +   (3600000   *   parseInt(NumDay)));
     break;
   case   "d":
     dtTmp =   new   Date(Date.parse(dtTmp)   +   (86400000   *   parseInt(NumDay)));
     break;
   case   "w":
     dtTmp =   new   Date(Date.parse(dtTmp)   +   ((86400000   *   7)   *   parseInt(NumDay)));
     break;
   case   "m":
     dtTmp =   new   Date(dtTmp.getFullYear(),   (dtTmp.getMonth())+parseInt(NumDay),   dtTmp.getDate(),   dtTmp.getHours(),   dtTmp.getMinutes(),   dtTmp.getSeconds());
     break;
   case   "y":
     //alert(dtTmp.getFullYear());
     dtTmp =   new   Date(dtTmp.getFullYear()+parseInt(NumDay),   dtTmp.getMonth(),   dtTmp.getDate(),   dtTmp.getHours(),   dtTmp.getMinutes(),   dtTmp.getSeconds());
     //alert(dtTmp);
     break;
}
var mStr=new String(dtTmp.getMonth()+1);
var dStr=new String(dtTmp.getDate());
if (mStr.length==1){
   mStr="0"+mStr;
}
if (dStr.length==1){
   dStr="0"+dStr;
}
return dtTmp.getFullYear()+"-"+mStr+"-"+dStr;
}
</script>
<script language="JavaScript">

function calculate(type)
{
var entry = document.getElementById(type).value;//自己判断是否合法
var uValue=document.form.u.value;
uValue=uValue.replace("-","/").replace("-","/");
//alert(uValue);
document.form.twice.value = DateAdd(type,entry,uValue);
}
</script>

</body>
</html>