要想实现这样功能，如何做，谢谢！（在线等待);

<HTML>
<HEAD>
<META NAME="GENERATOR" Content="Microsoft Visual Studio 6.0">
<TITLE></TITLE>
<script language="javascript">
function GoProd(theForm)
{
   var i=1;
   var Premoney;
   for(i=1;i<=24;i++)
   {
      Premoney="Premoney"+i;
      if(theForm.Premoney.value =="")
     {
         alert("请输入预算");
         theForm.Premoney.focus();
         return false;
        }
   }

   return true
}
</script>
</HEAD>
<BODY onload="GoProd(document.theForm)">
<form name="theForm">
<input type="text" name="Premoney" size="16">
</form>
</BODY>
</HTML>是这个要求吗?

解决方案 »

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theForm.Premoney.value中的Premoney不能够是变量只能用theForm.Premoney1.value   theForm.Premoney2.value  theForm.Premoney3.value。。才行
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<script>
function GoProd(theForm){
    if(theForm.Premoney1.value==""){
alert("ÇëÊäÈëÔ¤Ëã");
theForm.Premoney1.focus();
return false;
}
if(theForm.Premoney2.value==""){
alert("ÇëÊäÈëÔ¤Ëã");
theForm.Premoney2.focus();
return false;
}
.
.
.
.
.
return true
}</script>
</HEAD><BODY>
<FORM METHOD=POST ACTION="" name="form1" onSubmit="return GoProd(form1);">
<INPUT TYPE="text" NAME="Premoney1">
<INPUT TYPE="text" NAME="Premoney2">
<INPUT TYPE="text" NAME="Premoney3">
<INPUT TYPE="text" NAME="Premoney4">
<INPUT TYPE="text" NAME="Premoney5">
<INPUT TYPE="text" NAME="Premoney6">
<INPUT TYPE="text" NAME="Premoney7">
<INPUT TYPE="text" NAME="Premoney8">
<INPUT TYPE="text" NAME="Premoney9">
<INPUT TYPE="text" NAME="Premoney10"><INPUT TYPE="submit" value="ok">
</FORM>
</BODY>
</HTML>
谢谢longshenwang, 刚才没看清:)<HTML>
<HEAD>
<META NAME="GENERATOR" Content="Microsoft Visual Studio 6.0">
<TITLE></TITLE>
<script language="javascript">
function GoProd()
{;
   for(i=0;i<24;i++)
   {
     if ((document.theForm .elements[i] .type="text") && (document.theForm .elements [i].value==""))
        {
          alert("请输入预算")
          document.theForm .elements [i].focus()
          return false
        }
   }

   return true
}
</script>
</HEAD>
<BODY>
<form name="theForm">
<input type="text" name="Premoney1" size="16">
<input type="text" name="Premoney2" size="16">
<input type="button" name="button1" value="提交" onclick="GoProd()">
</form>
</BODY>
</HTML>