Html>
<meta http-equiv= "Content-type" content= "text/html; charset=gb2312 ">
<meta name= "generator" content= "Microsoft FrontPage 4.0" >
<meta name= "ProgId" content= "FrontPage.Editor.Document" >
<title>new Page 1</title>
<body>
<script language = ' JavaScript ' >
Check for English
function Checkchar ()
{
var letters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
for (i=0 i < document.form.aaa.value.length; i++)
{
var Checkchar = document.form.aaa.value.charAt (i);
Checkchar = Checkchar.touppercase ();
if (Letters.indexof (checkchar) = =-1)
{
Alert ("input type must be English!") ");
return false;
}
}
}
Checksum is a number
function Checknum (p)
{
if (p = = "")
{Alert ("Input cannot be empty!") ");
return false;
}
var L = p.length;
var count=0;
for (var i=0; i<l; i++)
{
var digit = P.charat (i);
if (digit = = ".")
{
++count;
if (count>1)
{Alert ("input type must be a number!") ");
return false;
}
}
else if (digit < "0" | | digit > "9")
{Alert ("input type must be a number!") ");
return false;
}
}
return true;
}
Verify IP address format
function Checkip ()
{
var scount=0;
var ip = document.form3.ccc.value;
var iplength = ip.length;
var letters = "1234567890.";
for (i=0 i < document.form3.ccc.value.length; i++)
{
var Checkchar = document.form3.ccc.value.charAt (i);
if (Letters.indexof (checkchar) = =-1)
{
Alert ("The IP address format is not!!, you can only enter numbers and". ", the format is XXX.XXX.XXX.XXX for example: 192.168.0.1");
Document.form3.ccc.value= "";
Document.form3.ccc.focus ();
return false;
}
}
for (var i = 0;i<iplength;i++)
(Ip.substr (i,1) = = ".")? Scount++:scount;
if (scount!=3)
{
Alert ("The IP address format is not correct!, you can only enter numbers and". ", the format is XXX.XXX.XXX.XXX for example: 192.168.0.1");
Document.form3.ccc.value= "";
Document.form3.ccc.focus ();
return false;
}
A/Ip.indexof (".");
last = Ip.lastindexof (".");
STR1 = ip.substring (0,first);
Subip = ip.substring (0,last);
Sublength = Subip.length;
Second = Subip.lastindexof (".");
str2 = subip.substring (First+1,second);
STR3 = subip.substring (second+1,sublength);
STR4 = ip.substring (last+1,iplength);
if (str1== "" | | str2== "" | | str3== "" | | STR4 = "")
{Alert ("Number cannot be empty!") Format for XXX.XXX.XXX.XXX For example: 192.168.0.1 ");
Document.form3.ccc.value= "";
Document.form3.ccc.focus ();
return false;
}
if (str1< 0 | | | str1 >255)
{Alert ("number range is 0~255! ");
Document.form3.ccc.value= "";
Document.form3.ccc.focus ();
return false;
}
else if (str2< 0 | | str2 >255)
{Alert ("number range is 0~255! ");
Document.form3.ccc.value= "";
Document.form3.ccc.focus ();
return false;
}
else if (str3< 0 | | str3 >255)
{Alert ("number range is 0~255! ");
Document.form3.ccc.value= "";
Document.form3.ccc.focus ();
return false;
}
else if (str4< 0 | | STR4 >255)
{Alert ("number range is 0~255! ");
Document.form3.ccc.value= "";
Document.form3.ccc.focus ();
return false;
}
Verifying phone numbers
function Checkphone ()
{
var letters = "1234567890,";
for (i=0 i < document.form4.ddd.value.length; i++)
{
var Checkchar = document.form4.ddd.value.charAt (i);
if (Letters.indexof (checkchar) = =-1)
{
Alert ("Phone number can only be a number or comma!") ");
return false;
}
}
}
}
</script>
<form name = "form" method= "POST" action = "AA" onsubmit = "return Checkchar ()" >
<p> Check English letters: <input type= "text" Name= "AAA" size= ">"
</p>
<p>
<input type= "Submit" value= "submitted" name= "B1" >
<input type= "reset" value= "rewrite" name= "B2" ></p>
</form>
<form name = "Form2" method= "POST" onsubmit= "return Checknum (Document.form2.bbb.value)" >
<p> Check Number: <input type= "text" Name= "BBB" size= "></p>"
<p><input type= "Submit" value= "submitted" name= "B1" ><input type= "reset" value= "all Rewrite" name= "B2" ></p>
</form>
<form name = "FORM3" method= "POST" onsubmit = "return Checkip ()" >
<p> Verify IP Address: <input type= "text" Name= "CCC" size= "></p>"
<p><input type= "Submit" value= "submitted" name= "B1" ><input type= "reset" value= "all Rewrite" name= "B2" ></p>
</form>
<form name = "FORM4" method= "POST" onsubmit = "return Checkphone ()" >
<p> Check phone number: <input type= "text" name= "ddd" size= "><input type=" Submit "value=" submitted "name=" B1 ">< Input type= "reset" value= "rewrite" name= "B2" ></p>
</form>
</body>
