烦恼：动态的input框怎么验证？

Question

<SCRIPT language=javascript>
function check(locationid)
{
    temp="change_time"+locationid;
if (eval("document.myform.change_time"+locationid).value!="" & (eval("document.myform.change_time"+locationid).value.substring(4,5)!="-" | eval("document.myform.change_time"+locationid).value.substring(7,8)!="-" ))
    {    
  alert("日期请按要求格式输入！例如（1900-01-01）");
      eval("document.myform.change_time"+locationid).focus();
  return (false);
}
}
</SCRIPT><input name="change_time<%=(num4+1)%>" type="text" id="change_time<%=(num4+1)%>" value="<%if (view.change(rs.getString("change_time")).equals("")) out.println(""); else out.println(rs.getDate("change_time"));%>" onMouseOut="return check(<%=(num4+1)%>)">
Good Luck!

Answer 1

for(var i=0;i<document.all.length;i++)
{
  if(document.all.item(i).TagName=="TEXT")
  {
    ........
  }
}