On a page with two forms I need a script that will validate only the one that is being submitted.
I have made a simple page that shows the problem
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Untitled Document</title>
<script>
function validateForm() {
var checks = document.getElementsByName("tjek");
var checksChecked = false;
var i = 0;
while (!checksChecked && i < checks.length) {
if (checks[i].checked) checksChecked = true;
i++;
}
if (!checksChecked) {
alert("Select something!")
return false;
}
}
</script>
</head>
<body>
<form onSubmit='return validateForm()' action="" method="get">
<input name="tjek" type="checkbox" value="" />
<input name="" type="submit" />
</form>
<form onSubmit='return validateForm()' action="" method="get">
<input name="tjek" type="checkbox" value="" />
<input name="" type="submit" />
</form>
</body>
</html>
http://jsbin.com/duqotobi/1/edit
But it doesn't work. Why?
Here goes: live demo: http://jsbin.com/duqotobi/2/edit?html,output.
The code:
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>Demo</title>
<script>
function validateForm(caller) {
var checks = caller.querySelectorAll('input[type="checkbox"]');
for (var i=0; i<checks.length; i++) {
if (checks[i].checked == false) {
alert("Select something.");
return false;
}
else {
caller.submit();
}
}
}
</script>
</head>
<body>
<form name="firstForm" action="form_handler.php" method="get">
<input name="tjek" type="checkbox" value="" />
<input type="button" value="Send" onclick="validateForm(this.parentNode)" />
</form>
<form name="secondForm" action="form_handler.php" method="get">
<input name="tjek" type="checkbox" value="" />
<input type="button" value="Send" onclick="validateForm(this.parentNode)" />
</form>
</body>
</html>
If it's not fully self-explanatory, let me know. Do realize however, that it is tricky to give checkboxes the same names, even if it concerns different forms. Only radio inputs belonging to the same group should have the same name. This script is not critical in that aspect, but just so you know.
I rewrote it in my style of JS validation scripting; other styles are possible as well.
Related
I'm trying to make my iframe to auto login.
Here is my code. It's not logging in automatically. Whats the problem with my code?
<form id="login" target="frame" method="post" action="https://172.16.8.187:6060/NCMContainer.cc">
<input type="hidden" name="username" value="user" />
<input type="hidden" name="password" value="pass" />
</form>
<iframe id="frame" name="frame"></iframe>
<script type="text/javascript">
// submit the form into iframe for login into remote site
document.getElementById('login').submit();
// once you're logged in, change the source url (if needed)
var iframe = document.getElementById('frame');
iframe.onload = function() {
if (iframe.src != "https://172.16.8.187:6060/NCMContainer.cc") {
iframe.src = "https://172.16.8.187:6060/NCMContainer.cc";
}
}
Your main HTML should look like this:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" /><meta charset="utf-8" />
<title>Numpty</title>
</head>
<body>
<iframe src="frame.html"></iframe>
</body>
</html>
then create a new file, frame.html, which can look like this
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" /><meta charset="utf-8" />
</head>
<body>
<form id="login" method="post" action="https://172.16.8.187:6060/NCMContainer.cc">
<input type="hidden" name="username" value="user" />
<input type="hidden" name="password" value="pass" />
</form>
<script type="text/javascript">
document.getElementById('login').submit();
</script>
</body>
</html>
Now the iframe will be logged in to https://172.16.8.187:6060/
I am trying to POST text values to the different python program based on user selection (through radio button). Program works fine with single form action
<form action='/cgi-bin/prog1.py' method='POST'>
...text input1
...text input2
...submit
</form>
but when using radio button text values are not posted to the program.
Here is the code I tried
<!DOCTYPE html>
<html>
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<script type="text/javascript">
function whichsite(form){
var sites = form.elements.site, i = sites.length;
while (--i > -1){
if(sites[i].checked){
return sites[i].value;
}
}
}
</script>
</head>
<body>
<form action="#" onsubmit="window.open(whichsite(this)); return false; method='POST' ">
<b>Program Jump</b>
<p>
Enter PDB ID:<input type="text" name="PDB_ID"><br>
Enter PDB Chain:<input type="text" name="Chain_ID"><br>
<label><input type="radio" name="site" value="/cgi-bin/prog1.py">P-P</label>
<label><input type="radio" name="site" value="/cgi-bin/prog2.py">P-L</label>
<label><input type="radio" name="site" value="/cgi-bin/prog3.py">P-C</label>
<p>
<input type="submit" value="Submit">
</form>
</body>
</html>
Help me !
I think you should change the action attribute value of the form in onsubmit method instead of window.open method, you can try something like this:
<!DOCTYPE html>
<html>
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<script type="text/javascript">
function whichsite(form){
var sites = form.elements.site, i = sites.length;
while (--i > -1){
if(sites[i].checked){
// here change the action value instead of return the site
form.action = sites[i].value;
}
}
}
</script>
</head>
<body>
<form action="#" onsubmit="whichsite(this); return false;" method="POST">
<b>Program Jump</b>
<p>
Enter PDB ID:<input type="text" name="PDB_ID"><br>
Enter PDB Chain:<input type="text" name="Chain_ID"><br>
<label><input type="radio" name="site" value="/cgi-bin/prog1.py">P-P</label>
<label><input type="radio" name="site" value="/cgi-bin/prog2.py">P-L</label>
<label><input type="radio" name="site" value="/cgi-bin/prog3.py">P-C</label>
<p>
<input type="submit" value="Submit">
</form>
</body>
</html>
Or, you can try change the value of action in the change event of radio, hope this can help~~~
i'm trying to create some kind of Desktop Keyboard (using/writing kyrillic letters in my text field). I came across the Problem that i can only write the first letter because of the assignment of the variable.
can someone tell me an easy way to get around that?
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<script language="javascript" type="text/javascript">
function rukeyboard() {
var newtext = document.Keyboard.A.value; // <-- Problem is that newtext is only pointed to Keyboard.A but should be usable for 33 letters
document.Keyboard.outputtext.value += newtext;
}
</script>
</head>
<body>
<form name="Keyboard">
<input type="button" name="A" value="A" onClick="rukeyboard();">
<input type="button" name="B" value="B" onClick="rukeyboard();">
<input name="outputtext">
</form>
</body>
</html>
This should solve your purpose :
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<script language="javascript" type="text/javascript">
function rukeyboard(button) {
var newtext = button.value; // <-- Problem is that newtext is only pointed to Keyboard.A but should be usable for 33 letters
document.Keyboard.outputtext.value += newtext;
}
</script>
</head>
<body>
<form name="Keyboard">
<input type="button" name="A" value="A" onClick="rukeyboard(this);"> <input type="button" name="B" value="B" onClick="rukeyboard(this);">
<input name="outputtext">
</form>
</body>
</html>
Here is a fiddle : https://jsfiddle.net/wet32n06/
Try this
function rukeyboard(newtext) {
document.Keyboard.outputtext.value += newtext;
}
<form name="Keyboard">
<input type="button" name="A" value="A" onClick="rukeyboard(this.value);">
<input type="button" name="B" value="B" onClick="rukeyboard(this.value);">
<input name="outputtext" value="">
</form>
You can also try this solution.
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<script language="javascript" type="text/javascript">
function rukeyboard() {
// var newtext = document.Keyboard.A.value; // <-- Problem is that newtext is only pointed to Keyboard.A but should be usable for 33 letters
document.Keyboard.outputtext.value += document.activeElement.value;
}
</script>
</head>
<body>
<form name="Keyboard">
<input type="button" name="A" value="A" onClick="rukeyboard();">
<input type="button" name="B" value="B" onClick="rukeyboard();">
<input name="outputtext">
</form>
</body>
</html>
But personally I will prefer using jquery to associate the functions, as there are lots of input tag and u have to manually call for each input tag.
So One good way will be using jquery.each to loop through all inputs, and bind the function using jquery on to the inputs.
Here is a solution using Jquery
HTML
<body>
<button value="A" name="A">A</button>
<button value="B" name="B">B</button>
<input id="outputtext" name="outputtext">
</body>
JQuery
<script>
$(document).on("click", "button", function() {
$("#outputtext").val($("#outputtext").val() + "" + this.value);
});
</script>
I have the following form:
<html xmlns="http://www.w3.org/1999/xhtml">
<head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Choose</title>
<script type="javascript/text">
function ischecked(){
var check = document.getElementsByTagName( 'input' );
for( var i = 0; i < check.length; i++ ){
if( check[ i ].type == 'radio' && check[ i ].checked ){
return true;
}
}
return false;
}
</script>
</head>
<body>
<form method="post" enctype="application/x-www-form-urlencoded" onsubmit="ischecked();">
<h1>Choose</h1>
<p><input type="radio" name="choose" value="psychology"><font size="5" color="#0033CC">Instant Psychology</font><br>
<br>
<input type="radio" name="choose" value="geography"><font size="5" color="#CC0000">Instant Geography</font><br>
<br>
<input type="radio" name="choose" value="gastronomy"><font size="5" color="#660033">Instant Gastronomy</font><br>
<br>
<input type="submit" name="Submit" value="Go"></p>
</form>
</body><link rel="stylesheet" type="text/css" href="data:text/css,"></html>
I wanted to make sure one of the radio buttons have been checked before submitting the form. However, it does not work, and the form is submitted anyways. What am I doing wrong here?
You need to return the result of your function from the inline event handler.
You have to check against the value returned in your validation function directly in the attribute value. That is, in your HTML form declaration
<form method="post" enctype="application/x-www-form-urlencoded" onsubmit="ischecked();">
you should write:
onsubmit="return ischecked();"
instead of:
onsubmit="ischecked();"
I'm having a little 'teething' problem here is my code so far
<form name="job_app">
Source?<br/>
<input type="radio" name="source" value="GAZ" id="GAZ" /> Stonoway Gazette <br/>
<input type="radio" name="source" value="JCP" id="JCP" /> Job Center <br/>
<input type="radio" name="source" value="WOM" id="WOM" /> Word of Mouth <br/><br/>
<script language="text/JavaScript">
if (document.job_app.source.GAZ.checked){
document.write='Issue <br/><input type="text" name="issue" /><br/><br/>';
}
else if (document.job_app.source.JCP.checked){
document.write='Ref <br/><input type="text" name="ref" /><br/><br/>';
}
//word of mouth has no additional input so there is no if statement for it
</script>
</form>
what i want this to do is create (or unhide) the issue or ref text box depending on which radio button is selected without creating multiple text boxes.
sorry for any inconvenience if this is a rookie mistake, i have never worked with java before nor a language like it.
This is the working code as of 07:15 26/05/2012 as thanks to Amy McCrobie.
It has undergone some edits since Amy's version (see below) i have moved all scripts above the form to make adding the next few fields easier, added a statement for word of mouth, omitted <head> as that is part of index.php and meta.php while this is for form.php, added a spacer and made the function name more specific.
index.php
<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html>
<head>
<?php
include './meta.php';
?>
</head>
<?php
/*if(isset($_POST['submit'])){
include './submit.php';
}
else{*/
include './form.php';
//}
?>
</html>
meta.php
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1" />
<meta http-Equiv="Cache-Control" Content="no-cache" />
<meta http-Equiv="Pragma" Content="no-cache" />
<meta http-Equiv="Expires" Content="0" />
<title>job_app</title>
<link rel="StyleSheet" type="text/css" href="./style.css"/>
form.php
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("#issueEl").hide();
$("#refEl").hide();
});
function showHide_source(){
if (document.getElementById('GAZ').checked)
{
document.getElementById('issueEl').style.display = 'block';
document.getElementById('refEl').style.display = 'none';
document.getElementById('src_spEl').style.display = 'none';
}
if (document.getElementById('JCP').checked)
{
document.getElementById('issueEl').style.display = 'none';
document.getElementById('refEl').style.display = 'block';
document.getElementById('src_spEl').style.display = 'none';
}
if (document.getElementById('WOM').checked)
{
document.getElementById('issueEl').style.display = 'none';
document.getElementById('refEl').style.display = 'none';
document.getElementById('src_spEl').style.display = 'block';
}
}
</script>
<form name="job_app" action="" method="post">
Source?<br/>
<input type="radio" name="source" value="GAZ" id="GAZ" onChange="showHide_source()" /> Stonoway Gazette <br/>
<input type="radio" name="source" value="JCP" id="JCP" onChange="showHide_source()" /> Job Center <br/>
<input type="radio" name="source" value="WOM" id="WOM" onChange="showHide_source()" /> Word of Mouth <br/><br/>
<div class="hideable" id="issueEl">Issue <br/><input type="text" name="issue" /><br/><br/></div>
<div class="hideable" id="refEl">Ref <br/><input type="text" name="ref" /><br/><br/></div>
<div class="hideable" id="src_spEl"></div>
rest of form
<input...
.../>
</form>
style.css
div.hideable{
height: 62px;
}
Try this:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-type" content="text/html; charset=utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1">
<meta http-Equiv="Cache-Control" Content="no-cache">
<meta http-Equiv="Pragma" Content="no-cache">
<meta http-Equiv="Expires" Content="0">
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("#issueEl").hide();
$("#refEl").hide();
});
</script>
<title>Test</title>
</head>
<body>
<form name="job_app" action="" method="post">
Source?<br/>
<input type="radio" name="source" value="GAZ" id="GAZ" onChange="showHide()" /> Stonoway Gazette <br/>
<input type="radio" name="source" value="JCP" id="JCP" onChange="showHide()" /> Job Center <br/>
<input type="radio" name="source" value="WOM" id="WOM" onChange="showHide()" /> Word of Mouth <br/><br/>
<div id="issueEl">Issue <br/><input type="text" name="issue" /><br/><br/></div>
<div id="refEl">Issue <br/><input type="text" name="ref" /><br/><br/></div>
</form>
<script type="text/javascript">
function showHide(){
if (document.getElementById('GAZ').checked)
{
document.getElementById('issueEl').style.display = 'block';
document.getElementById('refEl').style.display = 'none';
}
if (document.getElementById('JCP').checked)
{
document.getElementById('issueEl').style.display = 'none';
document.getElementById('refEl').style.display = 'block';
}
}
</script>
</body>
</html>
I would suggest jQuery, it's not hard to learn, in fact I find it much easier than basic javascript
also I would go the route of two textboxes that are hidden, and then showing them via jQuery
as it stands now I think if the user checks one radio button and then the other two text boxes will appear
and with jQuery added (which is as easy as including the sript at the top of your page your code would be more like this...
<form name="job_app">
Source?<br/>
<input id="GAZ" type="radio" name="source" value="GAZ" id="GAZ" /> Stonoway Gazette <br/>
<input id="JCP" type="radio" name="source" value="JCP" id="JCP" /> Job Center <br/>
<input id="WOM" type="radio" name="source" value="WOM" id="WOM" /> Word of Mouth <br/><br/>
Issue <br/><input id="issue" type="text" name="issue" /><br/><br/>
Issue <br/><input id="ref" type="text" name="ref" /><br/><br/>
<script language="text/JavaScript">
$("#issue").css("display","none");
$("#ref").css("display","none");
if ($("#GAZ").checked){
$("#issue").css("display","inline");
$("#ref").css("display","none");
}
if ($("#JCP").checked){
$("#issue").css("display","none");
$("#ref").css("display","inline");
}
//word of mouth has no additional input so there is no if statement for it
</script>
</form>