日期:2014-05-16  浏览次数:20359 次

急死 我了 帮帮忙!!!JS日期 显示错误
<!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>
<script     language= "javascript ">
function   proStartDate()
{
    document.theform.startYear.options.length=5;
  //循环请选择
  document.theform.startYear.options[0].text= "请选择 ";
  document.theform.startYear.options[0].value=0;
  for     (i=1;i <=5;i++)
    {
        document.theform.startYear.options[i].text=2006+i;
document.theform.startYear.options[i].value=2006+i;
    }
    //循环请选择
  document.theform.startMonth.options.length=13;
      document.theform.startMonth.options[0].text= "请选择 ";
      document.theform.startMonth.options[0].value=0;
 
    for   (i=1;i <=12;i++)
    {
      document.theform.startMonth.options[i].text=i+0;
      document.theform.startMonth.options[i].value=i+0;
    }
  //请选择判断
  var   month=document.theform.startMonth.value;
  var   year   =document.theform.startYear.value;
 
    if   ( "2 ".indexOf(month)   !=   -1)
    {
    if   (year%4==0   &&   year%100   !=0   ||year%400   ==0   )
    {
        document.theform.startDay.options.length=30;
document.theform.startDay.options[0].text= "请选择 ";
  document.theform.startDay.options[0].value=0;
        for   (i=1;i <=29;i++)
{
          document.theform.startDay.options[i].text=i+0;
          document.theform.startDay.options[i].value=i+0;
        }
    }
    else
    {
    document.theform.startDay.options.length=29;
document.theform.startDay.options[0].text= "请选择 ";
  document.theform.startDay.options[0].value=0;
        for   (i=1;i <=28;i++)
{
      document.   theform.startDay.options[i].text=i+0;
        document.theform.startDay.options[i].value=i+0;
        }
    }  
    }  
else   if   ( "135781012 ".indexOf(month)   !=   -1)
    {
              document.theform.startDay.options.length=32;
      document.theform.startDay.options[0].text= "请选择 ";
  document.theform.startDay.options[0].value=0;
              for   (i=1;i <=31;i++)
      {
                document.   theform.startDay.options[i].text=i+0;
          &