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php判断表单是否为空的js怎么不管用呢？

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php判断表单是否为空的js怎么不管用呢？[已结贴,结贴人:applejuzi]

发表于：2007-09-21 12:42:10 楼主

代码如下：

<html>

<head>
<meta http-equiv= "content-type " content= "text/html; charset=iso-8859-1 ">
<meta name= "author " content= " ">
</head>
<script language= "javascript ">
function checkdata（)
{
first=document.myform.txt_fname.value;
if（first==null)
{
alert（ "is null! ");
return false;
}
}
</script>

<body>
<form action= "res.php " method= "post " name= "myform " onbsumit= "return checkdata（); ">
<table align= "center " width= "500px " border= "1 ">
<tr> <td> first </td> <td> <input type= "text " name= "txt_fname "> </td> </tr>
<tr> <td> last </td> <td> <input type= "text " name= "txt_lname "> </td> </tr>
<tr> <td> position </td> <td> <input type= "text " name= "txt_position "> </td> </tr>
<tr> <td> address </td> <td> <textarea rows= "4 " name= "txt_address "> </textarea>
<tr> <td colspan= "2 " align= "center "> <input type= "submit " value= "query ">    <input type= "reset "> </td> </tr>
</table>
</form>
</body>
</html>

发表于：2007-09-21 12:51:081楼得分:8

<form action= "res.php " method= "post " name= "myform " onbsumit= "return checkdata（); "> //onsubmit 拼写有误

发表于：2007-09-21 12:58:482楼得分:5

<html>

<head>
<meta http-equiv= "content-type " content= "text/html; charset=iso-8859-1 ">
<meta name= "author " content= " ">
</head>
<script language= "javascript ">
function checkdata（)
{
first=document.myform.txt_fname.value;
if（first==null ¦ ¦ first== ' ')
{
alert（ "is null! ");
return false;
}
else
document.myform.submit（);
}
</script>

<body>
<form action= "res.php " method= "post " name= "myform ">
<table align= "center " width= "500px " border= "1 ">
<tr> <td> first </td> <td> <input type= "text " name= "txt_fname "> </td> </tr>
<tr> <td> last </td> <td> <input type= "text " name= "txt_lname "> </td> </tr>
<tr> <td> position </td> <td> <input type= "text " name= "txt_position "> </td> </tr>
<tr> <td> address </td> <td> <textarea rows= "4 " name= "txt_address "> </textarea>
<tr> <td colspan= "2 " align= "center ">
<input type= "button " value= "query " onclick= "checkdata（) ">
   <input type= "reset ">
</td> </tr>
</table>
</form>
</body>
</html>

发表于：2007-09-21 15:33:093楼得分:0

hehe,肯定哪里拼错了

发表于：2007-09-21 16:53:254楼得分:5

onbsumit= "return checkdata（); ">
onsubmit

发表于：2007-09-21 17:39:595楼得分:0

多谢大家了，晚上再试试吧。

发表于：2007-09-21 18:01:576楼得分:2

拼写错误是所有程序员必犯的错误
o（∩_∩)o...哈哈

发表于：2007-09-22 19:02:167楼得分:0

要注意单词的拼写
呵呵`````````

发表于：2007-10-06 20:38:298楼得分:0

呵呵，路过，学习一下，正在研究php和js之间的变量传值呢。

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