1
<html>
2<script type="text/JavaScript">
3function checkfile(file)
4
{
5
var checkfiles=new RegExp("((^http)|(^https)|(^ftp)):\/\/(\\w)+\.(\\w)+");
6 return checkfiles.test(file);
7
}
8function files()
9{
10 var frm = document.forms["formname"];
11 var str = frm.filename.value;
12 if(checkfile(str))
13
{
14 alert('验证成功！');
15 //return true;
16
}
17 else
18 {
19 alert("验证失败！");
20 //return false;
21 }
22}
23</script>
24<body>
25<form method="POST" action="" id="formid" name="formname">
26<tr>
27 <td>
28 <input name="filename" type="text" class="" />
29 </td>
30 <br>
31 <input type="button" name="check" value="验证" onclick="files()">
32</tr>
33</form>
34</body>
35</html>
<html>2
<script type="text/JavaScript">3
function checkfile(file)4
{ 
5
var checkfiles=new RegExp("((^http)|(^https)|(^ftp)):\/\/(\\w)+\.(\\w)+");6
return checkfiles.test(file);7
}8
function files()9
{10
var frm = document.forms["formname"]; 11
var str = frm.filename.value;12
if(checkfile(str))13
{
14
alert('验证成功！');15
//return true;16
}17
else18
{19
alert("验证失败！");20
//return false;21
}22
}23
</script>24
<body>25
<form method="POST" action="" id="formid" name="formname">26
<tr> 27
<td> 28
<input name="filename" type="text" class="" /> 29
</td> 30
<br> 31
<input type="button" name="check" value="验证" onclick="files()"> 32
</tr>33
</form>34
</body>35
</html>