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$(document).ready(function() {
els = $(".rlnumber");
els.each(function (index, obj) {
var $this = $(this);
$this.bind("keyup", function () {
var v = $this.val();
$this.val(v.replace(/\D|^0/g, '0'));
});
});
els.mouseenter(function(){
$(this).focus();
}).keypress(function(event){
var keycode = event.which;
if((keycode < 48 || keycode > 57) && keycode != 0 && keycode != 8){
event.preventDefault();
}
});
});
document.onkeydown = KeyDown;
function KeyDown(){
var gk=event.keyCode;
if(gk==13) {
event.keyCode = 9;
return;
}
}
<!doctype html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Test</title>
<script src="jquery.js" ></script>
<style>
form{
margin: 40px 15%;
border: 1px solid black;
width: 70%;
}
label{
display: inline-block;
width: 60px;
}
input[type="text"], select, textarea{
width: 60%
}
#btn-set, h3#formHead{
text-align: center;
}
h3#formHead{
color: white;
background-color: blue;
padding: 15px;
margin: 0px;
}
</style>
</head>
<body>
<form id="testForm" name="testForm" action="http://www.baidu.com" method="POST">
<h3 id="formHead">Test Form</h3>
<fieldset>
<label for="intBox">Int</label>
<input name=intBox" type="text" class="rlnumber" />
</fieldset>
<fieldset>
<label for="floatBox">Float</label>
<input name="floatBox" type="text" class="FNUM" />
</fieldset>
<fieldset>
<label for="radio">radio</label>
<input type="radio" name="radio" value="1" checked="checked" />
<span>radio-1</span>
<input type="radio" name="radio" value="2" />
<span>radio-2</span>
</fieldset>
<fieldset>
<label for="select">Select</label>
<select name="select">
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
</select>
</fieldset>
<fieldset id="btn-set">
<input id="ok" type="button" value="submit" />
<input type="reset" value="reset" />
</fieldset>
</form>
<script>
(function($){
function isLawfulChar(key){
var result = (key !== 0 && key !== 8 && key < 48) || key > 57;
return !result;
}
function getInputBox($form){
return $form.find('select, textarea, input:visible:enabled');
}
function isInputBox($elem){
return $elem.is('textarea, select, input');
}
$('form').keypress(function(event){
var target = $(event.target),
keycode = event.which;
if(!target.is('input.rlnumber, input.FNUM')){
return;
}
if(keycode === 46 && target.is('input.FNUM')){
var val = target.val();
if(val === '' || val === null){
target.val(0);
}else if(/\./.test(val)){
event.preventDefault();
}
}else if(!isLawfulChar(keycode)){
event.preventDefault();
}
}).keyup(function(event){
var target = $(event.target);
if(event.keyCode !== 13 || !isInputBox(target) || target.is('[type=button], [type=submit], [type=reset]')){
return;
}
var boxs = getInputBox($(this)),
index = boxs.index(target);
if(index === boxs.length){
this.submit();
}else{
boxs.eq(index + 1).focus();
}
return false;
}).mouseover(function(event){
var target = $(event.target);
if(isInputBox(target)){
target.focus();
}
});
$('#ok').click(function(){
$(this).closest('form').get(0).submit();
});
})(jQuery);
</script>
</body>
</html>
<!doctype html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Test</title>
<script src="jquery.js" ></script>
<style>
form{
margin: 40px 15%;
border: 1px solid black;
width: 70%;
}
label{
display: inline-block;
width: 60px;
}
input[type="text"], select, textarea{
width: 60%
}
#btn-set, h3#formHead{
text-align: center;
}
h3#formHead{
color: white;
background-color: blue;
padding: 15px;
margin: 0px;
}
</style>
</head>
<body>
<form id="testForm" name="testForm" action="http://www.baidu.com" method="POST">
<h3 id="formHead">Test Form</h3>
<fieldset>
<label for="intBox">Int</label>
<input name=intBox" type="text" class="rlnumber" />
</fieldset>
<fieldset>
<label for="floatBox">Float</label>
<input name="floatBox" type="text" class="FNUM" />
</fieldset>
<fieldset>
<label for="radio">radio</label>
<input type="radio" name="radio" value="1" checked="checked" />
<span>radio-1</span>
<input type="radio" name="radio" value="2" />
<span>radio-2</span>
</fieldset>
<fieldset>
<label for="select">Select</label>
<select name="select">
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
</select>
</fieldset>
<fieldset id="btn-set">
<input id="ok" type="button" value="submit" />
<input type="reset" value="reset" />
</fieldset>
</form>
<script>
(function($){
function isLawfulChar(key){
var result = (key !== 0 && key !== 8 && key < 48) || key > 57;
return !result;
}
function getInputBox($form){
return $form.find('select, textarea, input:visible:enabled');
}
function isInputBox($elem){
return $elem.is('textarea, select, input');
}
$('form').keypress(function(event){
var target = $(event.target),
keycode = event.which;
if(!target.is('input.rlnumber, input.FNUM')){
return;
}
if(keycode === 46 && target.is('input.FNUM')){
if(val === '' || val === null){
this.value = 0;
}else if(/\./.test(val)){
event.preventDefault();
}
}else if(!isLawfulChar(keycode)){
event.preventDefault();
}
}).keyup(function(event){
var target = $(event.target);
if(event.keyCode !== 13 || !isInputBox(target) || target.is('[type=button], [type=submit], [type=reset]')){
return;
}
var boxs = getInputBox($(this)),
index = boxs.index(target);
if(index === boxs.length){
this.submit();
}else{
boxs.eq(index + 1).focus();
}
return false;
}).mouseover(function(event){
var target = $(event.target);
if(isInputBox(target)){
target.select();
}
});
$('#ok').click(function(){
$(this).closest('form').get(0).submit();
});
})(jQuery);
</script>
</body>
</html>
<!doctype html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Test</title>
<script src="jquery.js" ></script>
</head>
<body>
<input type="text" class="rlnumber"/>
<input type="text" class="FNUM"/>
<script>
$('input.rlnumber').keypress(function(event){
var keycode = event.which;
if((keycode != 0 && keycode != 8 && keycode != 13 && keycode < 48) || keycode > 57){
event.preventDefault();
}
});
$('input.FNUM').keypress(function(event){
var keycode = event.which,
val = this.value;
if(keycode === 46){
if(val === '' || val === null){
this.value = 0;
}else if(/\./.test(val)){
event.preventDefault();
}
return;
}else if((keycode !== 0 && keycode !== 8 && keycode !== 13 && keycode < 48) || keycode > 57){
event.preventDefault();
}
});
</script>
</body>
</html>
<!doctype html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Test</title>
<script src="jquery.js" ></script>
</head>
<body>
<input type="text" class="rlnumber"/>
<input type="text" class="FNUM"/>
<script>
$('input.rlnumber').keypress(function(event){
var keycode = event.which;
if((keycode != 0 && keycode != 8 && keycode != 13 && keycode < 48) || keycode > 57){
event.preventDefault();
}
});
$('input.FNUM').keypress(function(event){
var keycode = event.which,
val = this.value;
if(keycode === 46){
if(/\./.test(val)){
event.preventDefault();
}
return;
}else if((keycode !== 0 && keycode !== 8 && keycode !== 13 && keycode < 48) || keycode > 57){
event.preventDefault();
}
}).change(function(){
var val = this.value;
if(/^\./.test(val)){
this.value = 0 + val;
}
});
</script>
</body>
</html>
$(document).ready(function() {
$(".FNUM").mouseenter(function () {
$(this).focus();
}).keypress(function (event) {
var keycode = event.which;
if ((keycode < 48 || keycode > 57) && keycode != 0 && keycode != 8 && keycode != 46) {
event.preventDefault();
}
}).keyup(function (event) {
var obj = $(this)[0];
obj.value = obj.value.replace(/[^\d.]/g, "");
obj.value = obj.value.replace(/^\./g, "");
obj.value = obj.value.replace(/\.{2,}/g, ".");
obj.value = obj.value.replace(".", "$#$").replace(/\./g, "").replace("$#$", ".");
});
els = $(".rlnumber");
els.each(function (index, obj) {
var $this = $(this);
$this.bind("keyup", function () {
var v = $this.val();
$this.val(v.replace(/\D|^0/g, '0'));
});
});
els.mouseenter(function(){
$(this).focus();
}).keypress(function(event){
var keycode = event.which;
if((keycode < 48 || keycode > 57) && keycode != 0 && keycode != 8){
event.preventDefault();
}
});
});
document.onkeydown = KeyDown;
function KeyDown(){
var gk=event.keyCode;
if(gk==13) {
event.keyCode = 9;
return;
}
}
<!doctype html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Test</title>
<script src="jquery.js" ></script>
</head>
<body>
<form>
<input type="text" class="rlnumber"/>
<input type="text" class="FNUM"/>
</form>
<script>
(function($){
function isLawfulChar(key){
var boolean = (key !== 0 && key !== 8 && key !== 13 && key < 48) || key > 57;
return !boolean;
}
function getInputBox($form){
var elem1 = $form.find('select, textarea'),
elem2 = $form.find('input:visible:enabled').not('[type=button], [type=submit], [type=reset]');
return elem1.add(elem2);
}
function isInputBox($elem){
var ret;
if($elem.is('textarea, select')){
ret = true;
}else if($elem.is('input')){
if($elem.is('[type=button], [type=submit], [type=reset], [type=hidden]')){
ret = false;
}else{
ret = true;
}
}
return ret;
}
$('input.rlnumber').keypress(function(event){
var keycode = event.which;
if(isLawfulChar(keycode)){
event.preventDefault();
}
});
$('input.FNUM').keypress(function(event){
var keycode = event.which,
val = this.value;
if(keycode === 46){
if(val === '' || val === null){
this.value = 0;
}else if(/\./.test(val)){
event.preventDefault();
}
}else if(isLawfulChar(keycode)){
event.preventDefault();
}
});
$('form').keydown(function(event){
var target = $(event.target);
if(!isInputBox(target) || event.keyCode !== 13){
return;
}
var boxs = getInputBox($(this)),
index = boxs.index(target);
if(index === box.length){
this.submit();
}else{
boxs.eq(index + 1).focus();
}
});
})(jQuery);
</script>
</body>
</html>
if((keycode != 0 && keycode != 8 && keycode != 13 && keycode < 48) || keycode > 57){
event.preventDefault();
}
document.onkeydown = KeyDown;
function KeyDown(){
var gk=event.keyCode;
if(gk==13) {
event.keyCode = 9;
return;
}
}