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JavaScript - Required Input Text Help
Currently I have several forms using the input text "field3".
I want to know how I can require an HTML input text field to be required WITHOUT having to use the form name in the javascript and without modifying <body>,<form> or <input type="submit">. Also no HTML5 since not all browsers use it (life would be simple if they did since threres a required tag) So here is my form, for example Code: <form name = "test"> <input type="text" name="field1"> <input type="text" name="field2"> <input type="text" name="field3"> <input type="submit"> </form> In otherwords, I can only edit <input type="text" name="field3"> by putting code directly before, in, or after that input field. With this problem, how can I make it required? thank you Similar TutorialsHey I'm trying to create a function which when my "other address" radio button is checked, the "address2", "suburb2" and "postcode2" fields MUST be filled out by the user. I think I need to be using a for loop to determine which button is checked , but I don't know how to apply this checked button to prompt my client that the remaining fields must be completed (as seen in red)? Here is what I have come up with so far... Many thanks in advance for advice or pointers [CODE][ICODE] <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>Order Form for Joe's Fruit Shop</title> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <meta name="author" content="Cherie_ONeill"> <style type="text/css"> body {font-family:arial;color:#000000;font-size:10px;} h4 {font-style:italic;} .input {font-size:10px;color:#483D8B;} </style> <script type='text/javascript'> function formValidator() { // Make quick references to our fields var fullname = document.getElementById("fullname"); var stnumber = document.getElementById("stnumber"); var address = document.getElementById("address"); var suburb = document.getElementById("suburb"); var state = document.getElementById("state"); var postcode = document.getElementById("postcode"); var phone = document.getElementById("phone"); var email = document.getElementById("email"); // Check each input in the order that it appears in the form! if(isAlphabet(fullname, "Please enter letters only for your name")){ if (isNumeric(stnumber, "Please enter numbers only for your house number")){ if(isAlphanumeric(address, "Please enter your street name")){ if(isAlphabet(suburb, "Please enter letters only for your suburb")){ if(madeSelection(state, "Please Choose a State")){ if(isNumeric(postcode, "Please enter a valid postcode")){ if(lengthRestriction(postcode, 4, 4)){ if(isNumeric(phone, "Please enter a valid phone")){ if(lengthRestriction(phone, 10, 10)){ if(emailValidator(email, "Please enter a valid email address")){ return true; } } } } } } } } } } return false; } //ensure all fields are filled but this funtion may not be required on this form function notEmpty(elem, helperMsg) { if(elem.value.length == 0) { alert(helperMsg); elem.focus(); // set the focus to this input return false; } return true; } //ensures a field is numeric only function isNumeric(elem, helperMsg) { var numericExpression = /^[0-9]+$/; if(elem.value.match(numericExpression)) { return true; } else { alert(helperMsg); elem.focus(); return false; } } //ensures a field contains letters only function isAlphabet(elem, helperMsg) { var alphaExp = /^[a-zA-Z _]+$/; if(elem.value.match(alphaExp)) { return true; } else { alert(helperMsg); elem.focus(); return false; } } //ensures a field has both numbers & letters function isAlphanumeric(elem, helperMsg) { var alphaExp = /^[A-Za-z0-9 _]*[A-Za-z0-9][A-Za-z0-9 _]*$/; if(elem.value.match(alphaExp)) { return true; } else { alert(helperMsg); elem.focus(); return false; } } //restricts the amount of digits required in a numeric field function lengthRestriction(elem, min, max) { var uInput = elem.value; if(uInput.length >= min && uInput.length <= max) { return true; } else { alert("Please enter between " +min+ " and " +max+ " characters"); elem.focus(); return false; } } //validates a selection has been made from the select lists function madeSelection(elem, helperMsg) { if(elem.value == "Please Choose") { alert(helperMsg); elem.focus(); return false; } else { return true; } } //validates the email address function emailValidator(elem, helperMsg) { var emailExp = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/; if(elem.value.match(emailExp)) { return true; } else { alert(helperMsg); elem.focus(); return false; } } //resets the form function formReset() { document.getElementById("orderForm").reset(); } </script> </head> <body> <h2>Order Form</h2> <h4>* Indicates required fields.</h4> <h4>Your details:</h4> <form name="orderForm" id="orderForm" onsubmit="return formValidator()"> <p>* Name: <input id="fullname" name="fullname" class="input"></p> * Number: <input id="stnumber" size="5" class="input"> * Address: <input id="address" name="address" class="input"></p> <p>* Suburb or Town: <input id="suburb" name="suburb" class="input"> * State: <select class="input"id="state"><option>Please Choose</option><option>ACT</option><option>NSW</option><option>NT</option><option>QLD</option><option>SA</option><option>VIC</option><option>WA</option></select> * Postcode: <input id="postcode" name="postcode" maxlength="4" size="4" class="input" ></p> <p>* Home phone: <input name="phone" id="phone" maxlength="10" size="10" class="input"></p> <p>* Email: <input name="email" id="email" value="enter your current email address" class="input"></p> <br> <h4>Purchase details</h4> <p>* Basket choice: <select class="input"><option>Fruit Deluxe</option><option>Vege Deluxe<option>Fruit & Vege Deluxe</option><option>Tropical Treat</option><option>Vege Basics</option></select> Quantity: <select class="input"><option>1</option><option>2</option><option>3</option><option>4</option><option>5</option></select></p> <p>* Deliver to:</p> <input type="radio" id="deliverhome" name="delivery" value="home" checked="checked"><label for="deliverhome">Home address</label><br> <input type="radio" id="deliverother" name="delivery" value="other"><label for="deliverother">Other address</label> <br> <br> <input type="text" name="address2" id="address2" class="input"> (Street) <input type="text" name="suburb2" id="suburb2" class="input"> (Suburb/Town) <select class="input"><option>ACT</option><option>NSW</option><option>NT</option><option>QLD</option><option>SA</option><option>VIC</option><option>WA</option></select> (State) < input type="text" name="postcode2" id="postcode2" maxlength="4" size="4" class="input"> (Postcode) <br> <input type="submit" value="Submit"> <input type="button" onclick="formReset()" value="Reset"> </form> </body> </html> Hi all can someone guide me (total JS newbie) on this presumably pretty easy task? I have a "parent" page with some text inputs in it (a form). This is what I am after: -when the user clicks a link it pops open a new window via JS - "child" (this is working). -in the "child" window there are also some text inputs (another form) (done). -when the user changes the value for 'testChild_textInput_4' in the child window, then I want it to automatically set this same value, to effectively overwrite, what is currently in 'testParent_textInput_2' in the parent window. Presumably this involves an onChange event, but it is also OK with me if the needful (the text input's value in the parent window being overwritten) happens upon the child window's form submit. If anyone can show me either trick, I would be thrilled! I set up a test page to make this all easy to talk about: http://www.yellow-turtle.com/testDumpMe_parent.html Please let me know! Thanks! -John I am thinking this should be fairly easy but yet I am not getting far. I want to have a form with a single text imput field for a zip code. Depending on which zip code the user enters will determine which url they will be sent to. If they enter a zip code which is not in the script, they would be sent to a default url. I am also assuming this can be accomplished with javascript. Any help is greatly appreciated. Hi, I'm having a problem trying to get my html web form to work. I have a list of 8 radio button options for people to choose one option with the last option being other - and then I want if the user clicks other that the text field box next to it becomes a required field and the form will not submit until this text field is filled in. If the user selects one of the other radio button options then the text field is not compulsory. I am using a linked javascript validation file which checks that all fields on the form which I have stated as required - become required, but I am having problems getting this "Other" button and text field to work with it all and not have the submit continue without this text field being completed! any help would really be appreciated! Thanks in advance! Here is my validation script from dreamweaver i also have it in php for server side. But I trying to get a checkbox to make a text field required when you select it. Right now I have it so when you hit submit whether the text field is filled out or whether the checkbox is selected or not the error message comes up no matter what i do please help. the link to the page is http://www.mark-10.com/inquiries2 Code: function validateCheckbox() {
if(document.forms["form1"].sales.checked) {
if(document.forms["form1"].telephone.value.length < 12) { // xxx-xxx-xxxx
return false ;
}
else {
return true;
}
}
}
function MM_validateForm() { //v4.0
if (document.getElementById){
var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=document.getElementById(args[i]);
if (val) { nm=val.name; if ((val=val.value)!="") {
if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
if (p<1 || p==(val.length-1)) errors+='- '+nm+' must contain an e-mail address.\n';
} else if (test!='R') { num = parseFloat(val);
if (isNaN(val)) errors+='- '+nm+' must contain a number.\n';
if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
min=test.substring(8,p); max=test.substring(p+1);
if (num<min || max<num) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
} } } else if (test.charAt(0) == 'R') errors += '- '+nm+' is required.\n'; }
}
if(!validateCheckbox()) {
errors+="If checkbox checked, please include telephone number";
}
if (errors) alert('The following error(s) occurred:\n'+errors);
document.MM_returnValue = (errors == '');
} }
//-->
well title says it all i have a search form, and the default value is "enter text here" when the user click the submit button, i would like to check if the value of my text input is "enter text here" and if it is, then don't submit the form (popup a warning or something) how can i do that? thanks a lot! hi friends , i am on make a dynamic input field creation code , my problem is the entered text(value from "add proposition") is washing away , if i press new "add proposition" my java script is PHP Code: <script language="javascript" type="text/javascript"> function add() { k=document.getElementById("num").innerHTML k=parseInt(k); if(!k) {document.getElementById("num").innerHTML=1; k=1;} else{ document.getElementById("num").innerHTML=k+1; k++; } document.getElementById("cat").innerHTML+="<br />type propositon "+(k)+":<input type=\"text\" name=\"prop"+k+"\">is it answer? <input type=\"checkbox\" name=\"ans"+k+"\"> ignore this one:<input type=\"checkbox\" name=\"ign"+k+"\">" } </script> my html code is PHP Code: <form action="new.php" method="post"> <fieldset> <legend>Add Question & answer:</legend> question type:<br /> True or False:<input type="radio" name="radio" value="t"> Objective:<input type="radio" name="radio" value="o"> Other:<input type="radio" name="radio" value="o"> Quesion:<br /> <textarea name="desc" rows="6" cols="35" ></textarea> <br /> <a href="javascript:add()" ><b>add proposition</b></a> <div id="cat"></div> <div id="num" style="display:none;"></div> <br> <input type="submit" name="submit"> </fieldset> </form> how i solve this problem ? hi i wants to change one input to texarea when i select one from radio, plz any suggestion how i would do that? my code PHP Code: <input type="text" name="other" value="this need to become textarea" /> <input type="radio" name="inputtext" />Text <input type="radio" name="inputtext" />Textarea so when i click inputtext radio name"other" will become a textrea rather then input type text. thanks for any help. hi folks, i needed a text input so the user that will register a product, will make sure to enter the cents, and not just the raw money, making it to be stored incorrectly on my database. for example, if i type "1" the output inside the text field will be automatically "0.01", so the user HAS to type the cents. thanks in advance Hi, I have a form with text boxes which I need to display values ie. <input type="text" name="image_ref" value="image1" /> This works no porblem until I enter the below javscript onto the page: <script type="text/javascript"> var level1 = document.getElementById('level1'); level1.style.display = 'none'; var level2 = document.getElementById('level2'); level2.style.display = 'none'; var all_levels = document.getElementById('all_levels'); all_levels.style.display = 'none'; </script> This code is to hide certain parts of the form until they are activated. the problem is when the parts of the form are activated and displayed, the values inthe text input boxes do not show. Any ideas why this is? many thanks in advance. hello, I have a text input box where users can input values separated by a line break. What I need to do is to take those values and put them all into an array once they hit "submit". I can do this one line at a time, but I would like to be able to do it all in one hit. Can it be done in javascript? thanks in advance... Hi, I'm currently programming a menu editing script and I'm trying to reorder value of text input on change. What I'm trying to do is when I change the value of a text box it reorders the others. EX Start 1 2 3 4 5 Change 3->1 End 2 3 1 4 5 Here is what I've manage to do, it works only when the number is bigger. Javascript function Code: function changeOrder(current)
{
var num_name = current.name.split("_",2);
var id = num_name[0]+"_"+num_name[1]+"_number";
var maxorder = document.getElementById(id).value;
var currentmax = current.name.substr((current.name.length-1),1)
if(currentmax <= maxorder && current.value > 0)
{
var start = (currentmax > current.value ? 1 : currentmax);
for(var i=start;i<maxorder;i++)
{
var k = parseInt(i)+1;
x = document.getElementsByName(num_name[0]+"_"+num_name[1]+"_order_"+k);
x[0].value = i;
x[0].name = x[0].name.substr(0,(x[0].name.length-1))+i;
}
current.name = current.name.substr(0,(current.name.length-1))+current.value;
}
}
HTML input Code: <input type="text" style="width: 20px;" onchange="changeOrder(this);" value="1" name="other_title_order_1"> Thanks for any advices you may have Maxetime Hey everyone, I've looked around quite a bit and can't seem to find anything but I was wondering if there is some open source software offering a text editor/input field similar to the one used on this forum when submitting a comment or thread? Where you can click a bold button or Italic button or URL button to structure it? Thanks Josh I tried to create a new text input once the last text box gets focus. But I cant even type in them because every time it gets focus a new text input is created! I really dunno what to do. Code: <html>
<head>
<script type="text/javascript">
function getTB(field)
{
var i = document.getElementById("f1").length + 1;
var cmd = "<input type=text name = "+ i + " onfocus=getTB() value = " + i + ">";
document.getElementById('f1').innerHTML = document.getElementById('f1').innerHTML + cmd;
document.getElementById(i-2).focus();
}
</script>
</head>
<body>
<form id ="f1">
<input type ="text" value ="hello" name="1" onFocus ="getTB(this)">
</form>
</body>
</html>
how to modify so not every time a new text input created when tried to type in? Hello there, I am having trouble with a javascript snippet that adds text to a textarea when you click on the link. Problem is that when you regularly type into the textarea, the links no longer add text. Here is the links: Code: <a href="javascript:insertText('<b></b> ','textIns');" onClick="void(0)">Bold</a>
Here is the javascript Code: <script type="text/javascript">
function insertText(val,e) {
document.getElementById(e).innerHTML+=val;
}
</script>
Any ideas or suggestions? Hello everyone I am trying to receive the output of an array from a text input here is the code that I am attempting to do but it is not displaying the output January Here is the code example [CODE] <html> <script type ="text/javascript"> <!-- function coms(str){ var myArray = new Array(); myArray[0] = ["January"]; var index = 0; for(var i = 0; i < myArray.length; i++){ index; if(myArray[i] == "January"){ index i; } if(str.length == myArray[i]){ document.write(str); } } } </script> <body> <form> Panel:<input type="text" name="panel" onkeyup="coms(this.value)" /> <div id="read"><p>Data is displayed here</p></div> </form> </body> </html> [CODE] Any tips to make this possible are welcome thank you kindly I've been looking for a reference to my situation for two days and i can't find any that are relevant enough. I'm trying to accept text as a URL for an image source. I then display that image in a form with the use of a <button type=button onclick=codeThatGeneratesImage > type thing. Code: function addImageToForm(formID) {
//get a reference to the form
var formElement = document.getElementById(formID);
//get a reference to the element that contains the url
var elementWithImageURL = document.getElementbyId("imageURLInput");
//get URL entered
var imageURL = elementWithImageURL.getAttribute("value");
//create image element
----------------------------------------------------------------------------------
var newImage = document.createElement("img");
//reference the source using the url
newImage.setAttribute("src", imageURL);
newImage.setAttribute("name", "newImage");
//append the image to form
formElement.appendChild(newImage);
}
i know that the bottom half works because i tried it with just a reference to an image directly and it worked. i can't figure out why most of the top part isnt working. any help would be much appreciated This is hopefully a simple fix and I hope someone can help me out, I'm pretty new at coding. I have a form on an html page and I want to make it so when a button is clicked, it adds one to the input to the right of it, and when a button to the right of the input is clicked, it will delete one to the left of that button. I don't want to resort to making a new function for each and every form, because there will be a lot. Here is the form and input parts: Code: <form name="calculate"> <input type="button" onClick="add()" /> <input name="result" type="input" readonly="readonly" value="0" /> <input type="button" onclick="sub()" /> </form> Here is what the function code looks like: Code: function add()
{
var add = 1 * calculate.name.value;
add = add + 1;
calculate.name.value = add;
}
function sub()
{
var add = 1 * calculate.name.value;
add = add - 1;
calculate.name.value = add;
}
Note: where I called the calculate.name.value, that obviously doesn't work, and I need some way, rather than making multiple functions and changing the name part, to be able to call to a name near the button, if at all possible. Any and all ideas are appreciated, Thanks! Newbie here. I could not find the syntax how to set initial value he Code: var indat = window.clipboardData.getData ("Text");
.
.
.
.
.
<input type="text" name="q" value="xxxxxx" size="40" />
I would like the value to be the indat var value I saw lot of samples with value="xxxxx" (hard coded value) but could not find sample for var value thanks for help !! |
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