Verification IP on an example
Windows usually feel the IP input box with a good, if the website can also achieve certain things that feel so cool. Core code as follows:
<script Language="javascript">
Function outStr () (
If (document.all.ip1.value> 0 & & document.all.ip2.value> 0 & & document.all.ip3.value> 0 & & document.all.ip4.value> 0) (
Alert ( "you enter the IP address:" document.all.ip1.value + + "." Document.all.ip2.value + + "." Document.all.ip3.value + + "." + Document. all.ip4.value);
) / / End if
) / / End
Function moveRight (obj) (
Id = parseInt (obj.name.substr (2,1))
If (id <4) (
Eval ( "document.all.ip" + (id +1) +. "Focus ()");
Else ()
OutStr ();
) / / End if
)
Function moveLeft (obj) (
Id = parseInt (obj.name.substr (2,1))
If (id> 1) (
Eval ( "document.all.ip" + (id -1) +. "Focus ()");
) / / End if
) / / End if
Function Keypress (obj) (
Var objInput = obj;
Window.event.keyCode = cod;
If (cod == 46 & & (obj.value). Length> 0) (/ / If by the "." And with a character, a right move
Window.event.keyCode = 0;
MoveRight (obj);
) Else if ((obj.value). Length == 2 & & (cod> = 48) & & (cod <= 57 )){// If the number keys and enough 2
If (cod <58) (/ /
Obj.value obj.value * = 10 + cod - 48;
) / / End if
Window.event.keyCode = 0;
MoveRight (obj);
) Else (/ / input judgement is not just numbers
If (! (((Cod> = 48) & & (cod <= 57)) | | (cod == 13) | | (cod == 37) | | (cod == 39))) (
Window.event.keyCode = 0;
) / / End if
) / / End if
) / / End function keydown
Function getCaretPos (obj) (
Var currentRange = document.selection.createRange ();
Var workRange = currentRange.duplicate ();
Obj.select ();
Var allRange = document.selection.createRange ();
Var len = 0;
While (workRange.compareEndPoints ( "StartToStart" allRange)> 0) (
WorkRange.moveStart ( "character", -1);
Len + +;
)
CurrentRange.select ();
Return len;
) / / End
Function KeyDown (obj) (
Window.event.keyCode = cod;
I = getCaretPos (obj); / / cursor position
N = obj.value.length; / / characters in length
If (cod == 37 & & i == 0) (/ / cursor backspace
MoveLeft (obj);
) Else if (cod == 39 & & i> = n) (
MoveRight (obj);
) Else if (cod == 8 & (obj.value == "" | | i == 0)) (
MoveLeft (obj);
) / / End if
) / / End
Function checkDate (obj, max_num) (
If (obj.value> max_num | | obj.value <0) (
Window.event.keyCode = 0;
Alert (obj.value + "is null and void, only the importation of 0 to" max_num + + "between the number.");
Obj.value = max_num;
Obj.focus ();
Obj.select ();
) / / End if
) / / End
</ Script>
Testing Website: http://www.yemaweb.com/test/ipv1.0.htm
All source code in the Web page, there is no encryption and do not want to use when removed from the source.
Tags: ip
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