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JavaScript - Help With Textarea Needed
Hey everyone....I just started learning how to use Javascript and I have a problem....
I have an exercise in which I have to validate a form and write the info of all the fields in a textarea by pressing the submit button.....and I just can't do it. Code: <html>
<head>
<script language="javascript" type="text/javascript">
var radio_selection="";
function ValMode(){
Empty(myForm.name);
Empty(myForm.addr);
Empty(myForm.city);
Empty(myForm.mail);
radioButtons();
Empty2(myForm.multi);
return false;
}
function Empty(x){
if ((x.value.length==0)||(x.value==null)){
alert("Empty field");}
}
function Empty2(x){
if ((x.value==null)){
alert("Select an option");
}
}
function radioButtons() {
if (radio_selection=="")
alert("\nYou must check one of the radio buttons.");
}
</script>
</head>
<body>
<big><b>Example Form</b></big><br><br>
<b>The form</b><br>
<form name="myForm" onsubmit= "return ValMode();" >
Name <input type="text" name="name" size=30><br>
Address <input type="text" name="addr" size=30><br>
City <input type="text" name="city" size=30><br>
E-mail <input type="text" name="mail" size=30><br>
Room Type<br>
<input type="radio" name="personnumb" onClick="radio_selection='One person'">For One person<br>
<input type="radio" name="personnumb" onClick="radio_selection='For Two'">For Two<br>
<input type="radio" name="personnumb" onClick="radio_selection='For three'">For three<br>
<input type="radio" name="personnumb" onClick="radio_selection='Family suite'">Family suite<br>
How did you learn about us?<select name="mutli">
<option selected value="">--Select--
<option>From friend
<option>By chance
<option>Search engine
<option>Advertisement
</select><br>
I'd like additional service as: <br>
<input type="checkbox" name="veg">Vegetarian<br>
<input type="checkbox" name="hand">Handicap<br>
<input type="checkbox" name="allerg">Allergic to various substances<br>
<input type="checkbox" name="pet">Pet owner<br>
<input type="submit" value="submit form"><br>
<input type="reset" value="reset"><br>
<textarea cols=30 rows=10 id="textarea" name="textarea" >When you hit 'Submit' the user input will be written to htis textarea.</textarea>
</form>
</body>
</html>
Here is my code.I left out my sorry efforts of influencing the textarea. Any suggestions? Similar TutorialsHi- I have a table with numerous textareas that I am able to clear once - the first time the textarea is clicked the default value is cleared and everything is OK. However, at a certain point the user might press a 'Clear' button linked to a function I wrote to reset the values back to the defaults. At this point clicking into the textarea does not clear it. Below is a typical textarea: Code: <textarea rows= "2" cols="15" class="Klabel" id="ta5" onfocus="this.value=''; this.onfocus=null; setbg_color('ta5','#EFA746')" onchange="setbg_color('ta5', '#EBF5FF')">
Type a label
</textarea>
Below are the relevant functions. The Clear function mentioned above just runs 'setbg_color' and 'set_value' for each textarea and sets them to the defaults. Code: function setbg_color(id, color){
document.getElementById(id).style.background=color;
}
function set_value(id, celltype){
document.getElementById(id).value=celltype;
}
Is there anyway to essentially reverse the effects of the this.onfocus=null; statement? I tried something like this.onfocus=true; but that didn't work. An update - I haven't answered the reversing null question but an acceptable solution is to reload the page from within javascript as per http://www.mediacollege.com/internet...ge/reload.html Thanks -Jim ps - As part of my research I came across this http://mvied.com/blog/unobtrusive-input-clear-focus/ which does a smoother job of clearing the textareas but does not solve my question. I am looking for a javascript code for this idea under this message ---------------------------------------------------------------------------------------------------------------------------------------------------- I want to create a kind of shopping website so when you click on a image or text it will add some text to a textarea,, it will include the name of item and price of an item Hi i have a problem, i've been trying to fix this for the whole day pls see my code below Code: for ($o = 0; $o <= $totalclass; $o++)
{
for($i = 1; $i <= 45; $i++)
{
if ($_SESSION['classification'][$o] == $i)
{
$sql2="SELECT ClassDesc FROM tblclass WHERE ClassID = '$i'";
$result2=mysql_query($sql2);
// If successfully queried
if($result2)
{
while ($row2 = mysql_fetch_assoc($result2))
{
$ClassDesc2 = $row2['ClassDesc'];
}
}
//echo $ClassDesc2;
?>
<tr>
<td bgcolor="FAFAF6" class="small" valign="top">Class <? echo $i; ?></td>
<input type="hidden" name="<? echo "classid[]"; ?>" value="<? echo $i; ?>">
<td bgcolor="FAFAF6">
<textarea name="<? echo "specification[]"; ?>" COLS="50" ROWS="6" class="small" wrap="virtual" tabindex="<? echo $i; ?>"><? echo $ClassDesc2;?></textarea>
<input type="button" value="Reset" onclick="window.reset();" name="reset">
</td>
</tr>
<?
}
}
}
i've trying to create a button or image to reset one textarea (from whole array) and so far i've been unsuccessful. i've seen this on other website and i know it is possible to do this, pls help! Hi all, I'm loading external xml and displaying specific tagged elements in a textarea. It works fine in IE because I can turn the variable object into text with a simple object.text property, but in Firefox (using the serializeToString method), the object appears in my textarea tags and all. The code looks something like this (this is just a dummy script - imagine the xml is already loaded into the object xmlDoc ): Code: function writePage(){
document.write('<textarea name="inputText">'+myText+'</textarea>');
}
function xmlIsLoaded(){
if(window.ActiveXObject){ //tests for IE
myText = xmlDoc.getElementsByTagName("desiredTag")[0].text;
} else { //tests for FF
myText = (new XMLSerializer()).serializeToString(xmlDoc.getElementsByTagName("desiredTag")[0]);
}
writePage();
}
What am I missing here? I've tried toString, textContent, innerText, childNodes - just about everything I can think of to get just the text w/o the tags from the xml for the FF version. Any thoughts? ~gyz Hello there . Here is my simple code Quote: <html> <head> <script> function addText(){ document.getElementById("textarea").value+=document.getElementById("text").value+'\n'; document.getElementById("text").value=""; document.getElementById("text").onblur=document.getElementById("text").value=" Your Message..."; } </script> <style> #textarea{background-color:#F3F3F3; } </style> </head> <body> <form> <TEXTAREA id="textarea" COLS="80" ROWS="20" ></TEXTAREA><br/><br/> <input type="text" id="text" name="text" value=" Your Message..." onclick="this.value=''" size="96"> <input type="button" value="Send" name="submit" onclick="addText()"> </form> </body> </html> My problem is I dont know what to do iorder to make my send button to push the text entered in the text field from bottom to the top (not from the top to the bottom) I am fairly new at Javascript, but there is something happening I do not understand. Please someone explain it to me and help with a solution. In the function, I pull data from an URL and I have done this with several different data fields and populate the HTML input, option, and check boxes with no problem with the following method. Code: document.getElementById("othertxt").value=strValue;
document.getElementById("radsig").checked=true;
document.getElementById("eventtime").value=strValue;
But for some reason this method for textarea does not work and I know that there is a value in strValue because check it right before the line of code. Code: document.getElementById("othertxt").value=strValue;
Is textarea just treated differently? I have searched the internet and seen examples but for some reason I can not find the correct solution. I can write all kinds of stuff, but one thing is failing me, and is extremely frustrating. document.getElementById('fakeid').value; which is my least preferred option, won't even work on this text area. Either will: Code: var objElem = document.getElementById(strId);
var objElem = objElem.getElementsByTagName('textarea');
var strComment = objElem[0].value;
It will work fine in IE but will not in Firefox. I cannot understand why as I've done this many times before. The code it is using is: Code: <div id="commentAdd"><h3 id="commentHeader"><a href="javascript:;" onclick="func_toggle_visibility("commentAddContent");return false;">Add a comment</a></h3> <div class="contentnopadding" id="commentAddContent" style="display:block;"> <form id="formCommentAdd"> <div class="comleft"> <table> <tr><td><span class="subhead">Add Comment:</span></td><td><textarea id="fakeid" rows="3" cols="35"></textarea></td></tr> </table> </div> <div class="content"> <input id="commentAddSubmit" type="button" value="Submit Comment" onclick="commentInitAjax(this.id,'comment','1',false);"> </div> </form></div></div><br><br> <div class="contentnopadding"></div> hitting submit triggers that function (which i haven't pasted all of it, just the necessary parts). I have an alert right after where i assign the value, but it does not work in FF. Please help, it's giving me grief (if it helps, the HTML is written by javascript, but i can't see how it would have any effect). I'm making this expanabel textarea which works fine, but... If I set a predefined numbers of rows, when start typing it jumps back (schrinks) into 2 rows... How do I avoid this? Code: <script>
function checkRows(textArea){
if (navigator.appName.indexOf("Microsoft Internet Explorer") == 0)
{
textArea.style.overflow = 'visible';
return;
}
while (
textArea.rows > 4 &&
textArea.scrollHeight < textArea.offsetHeight
){
textArea.rows--;
}
while (textArea.scrollHeight > textArea.offsetHeight)
{
textArea.rows++;
}
return;
}
</script>
<textarea style="overflow:hidden;" onkeyup="checkRows(this)" rows="4">Some Test Text</textarea>
Thanks in advance:-) I'm adding text into a text area using document.createTextNode Code: document.getElementById('controlQueueDump').appendChild(document.createTextNode(args+';'));
But whenever the user edits the text box, it will never update anything again. I can add as much as I want, but when a user edits it (for example removes the contents), BAM, it is no longer updated. it's a textarea so it should be appending the child to the value attribute. Thanks a lot. Is it possible to limit a textarea input with a max amount of letters? So if the form said 1,000 character limit. Can it block it after the 1,000th one is reached? I'm having trouble with the way my textarea is displaying text when it's submitted. It always comes out as one line of text instead of the way a user has entered it. Here's my code. Code: <textarea name="info" value="" rows="7" cols="55"> Enter Your Personal Information Here </textarea><br /><br /> That is then called to a function which displays it in a new page. Code: <script>
function buildResume()
{
resInfo = document.myResume.info.value
flyWindow = window.open()
flyWindow.document.write("Personal Information " + resInfo);
}
</script>
If any knows how I could fix this it'd really help. I've tried using the pre element and wrap property with no luck. hi I am trying to create a textarea. There is a default text inside textarea. so when user clicks inside textarea then submit button appears and default text disappears and when user clicks somewhere else or outside textarea then it gets back to original state i.e, default text appears back and submit button disappears. here is what i did sofar. in this code when i click inside textarea then submit button does appear but text does not erase and when i click outside then button remains in sight. Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<style>
#submit {
visibility: hidden;
}
</style>
</head>
<body>
<form>
<label>Message:</label>
<textarea name="message" id="message" rows="5" cols="30">write message here!</textarea><br />
<input type="button" name="submit" id="submit" value="submit" />
</form>
</body>
<script type="text/javascript" src="lib/jquery-1.4.min(Production).js"></script>
<script>
var flag = false;
$(document).ready(function () {
$('#message').click(function () {
flag = true;
$('#submit').css('visibility','visible');
if(flag == true) {
//alert(flag);
var msg = $('#message').val();
//alert(msg);
msg = "";
//alert(msg);
}
});
});
</script>
</html>
is it possible to make a textarea resize with text? so if e.g the text overflows, the text-area is automatically resized so that there's no scrolling? It needs to resize automatically as the user is typing (more or less), he/she shouldn;t click on any buttons to resize it
I found a script that is perfect for my need but it is written for forms textareas and I can seem to get it to work textareas that are not wrapped in form. Code: Code: <script>function insertAtCursor(sTag,eTag)
{
var obj = document.form.message;
var strPos;
var ie_strPos;
var oSel;
obj.focus();
strPos += sTag.length + eTag.length;
ie_strPos += sTag.length + eTag.length;
if (document.selection && document.selection.createRange) { // Internet Explorer
oSel = document.selection.createRange();
if (oSel.parentElement() == obj) {
oSel.text = sTag + oSel.text + eTag;
ie_strPos += oSel.text.length;
}
oSel.moveStart ('character', ie_strPos);
oSel.moveEnd ('character', 0);
oSel.select ();
}
else if (typeof(obj) != "undefined") { // Firefox
var longueur = parseInt(obj.value.length);
var selStart = obj.selectionStart;
var selEnd = obj.selectionEnd;
obj.value = obj.value.substring(0,selStart) + sTag + obj.value.substring(selStart,selEnd) + eTag + obj.value.substring(selEnd,longueur);
strPos += txtarea.value.substring(selStart,selEnd).length;
obj.selectionStart = strPos;
obj.selectionEnd = strPos;
obj.focus ();
}
else obj.value += sTag + eTag;
obj.focus();
} </script>
<button onclick="insertAtCursor('[blah]','[/blah]')">Test</button>
<form method="post" name="form" action="">
<textarea name="message" cols="50" rows="10"></textarea>
</form>
My textarea: Code: <textarea id="new_topic_text" class="new-topic-subject-text elastic" style="overflow: hidden;"></textarea> Hi all. I have a textfield on my form problem. My boss wants it as a textfield to keep the field small on the page but still wants to be able to read all of the information that is in the field. What can I do with this?? Can we have change to textarea when he hovers to clicks in it. Any help would be appreciated. hi i am new to javascript. i want to make a form where a textarea, some buttons like bold,italic,link etc will be availablw. when user selecet some text from textarea and click bold button then one openig and closing tag will be added like this [sb]abc[/sb] how can i do this using javascript. any idea? pls. help Hi guys, My brain is not working. May be I need a coffee break. I need your expertise. Below is the code holding the textarea. Look for the element with the id : themessage Code: <table width="100%" border="0"> <tr><td rowspan="4"><input type="button" name="send_email" id="send_email" style="height:50px; width:100px;" value="SEND" onClick="return err_check();" /></td><td><span class="que">From : </span></td><td colspan="3"><?php echo $from_email; ?><input type="hidden" name="from_mail" id="from_mail" value="<?php echo $from_email;?>"/><input type="hidden" name="camp_id" id="camp_id" value="<?php echo $camp_id;?>"/></td></tr> <tr><td><span class="que">To : </span></td><td colspan="3"><input name="to_email" id="to_email" style="width:250px;" /></td></tr> <tr><td><span class="que">CC : </span></td><td colspan="3"><input name="cc_email" id="cc_email" style="width:250px;"/></td></tr> <tr><td><span class="que">Subject : </span></td><td colspan="3"><input style="width:300px;" name="subject" id="subject" /></td></tr> <tr><td rowspan="1" colspan="2"> </td><td><input type="checkbox" name="ori_pdf" id="ori_pdf" /> PDF Quotation</td><td> </td><td> </td></tr><tr><td colspan="2"><span class="que">Credit Application</span></td><td><input type="checkbox" name="corporate" id="corporate"/>Corporate</td><td><input type="checkbox" name="individual" id="individual" />Individual</td><td><input type="checkbox" name="cash" id="cash" />Cash Account</td> </tr> <tr> <td colspan="2" rowspan="3"></td><td><input type="checkbox" name="tabloid" id="tabloid" />Tabloid Example</td> <td><input type="checkbox" name="broadsheet" id="broadsheet" />Broadsheet Example</td></tr> <tr><td><input type="checkbox" name="colmt" id="colmt" />Column Sizes Tabloid</td> <td><input type="checkbox" name="colmb" id="colmb" />Column Sizes Broadsheet</td></tr> <tr><td><input type="checkbox" name="maps" id="maps" />Maps / Distribution</td><td colspan="2" align="right">External Attachments <input id="upload_file" name="upload_file" type="file"/> </td></tr> <tr><td colspan="2"><span class="que">Message :</span></td><td colspan="3"> <textarea id="themessage" name="themessage" rows="15" cols="80" style="width: 100%"> </textarea> </td></tr> </table> Now on a button click, I'm trying to pass some values which one of them happens to be what ever that is entered in the textarea. For some reason, the stupid JS is not reading. But I think it is me that is stupid, not JS. Below is the code i'm running to get the value. Code: var message = document.getElementById('themessage').value;
alert(message);
The alert simply returns blank. There is an alert, but no value even where there is text in the text area. Can someone please shed some light on this. pretty please so I am creating a silly word ;irate word interpreter page, and I need some logic behind how to add text to a textarea each time I click on a button. Each time the user clicks on the button, the value is inserted into the text area. You should be able to click on multiple buttons to add to the last text that appears. Then I have a delete translation button when I want to clear the textarea field. A good example would be if the user clicks on the button with the value "sir", than "matey" will appear in the textarea. Now, if the user clicks on the button with the value "your", then "yer" will come up after matey. It's like creating a sentence on your own, and then deleting it when your done. Code: <body> <div id="page"> <div> <img style="float:left" src="slue.gif" width="205" height="190" alt=""> <div> <h1>Pirate Translator</h1> <p>Simply click on the buttons to translate words and/or phrases from English to pirate talk</p> </div> </div><br /> <hr /> <form name="pirate"> <div> <fieldset> <legend><b>Greetings:</b></legend> <input type="button" id="greeting" value="hello" /> <input type="button" id="greeting" value="pardon me" /> <input type="button" id="greeting" value="excuse me" /> <input type="button" id="greeting" value="" /> <input type="button" id="greeting" value="" /> <input type="button" id="greeting" value="" /> </fieldset> </div> <div> <fieldset> <legend><b>People:</b></legend> <input type="button" id="people" value="sir" /> <input type="button" id="people" value="madam" /> <input type="button" id="people" value="miss" /> <input type="button" id="people" value="stranger" /> <input type="button" id="people" value="officer" /> <input type="button" id="people" value="" /> <input type="button" id="people" value="" /> </fieldset> </div> <div> <fieldset> <legend><b>Questions:</b></legend> <input type="button" id="question" value="where is" /> <input type="button" id="question" value="can you help me" /> <input type="button" id="question" value="is that" /> <input type="button" id="question" value="how far is it to" /> <input type="button" id="question" value="" /> <input type="button" id="question" value="" /> <input type="button" id="question" value="" /> <input type="button" id="question" value="" /> </fieldset> </div> <div> <fieldset> <legend><b>Articles:</b></legend> <input type="button" id="article" value="the" /> <input type="button" id="article" value="my" /> <input type="button" id="article" value="your" /> <input type="button" id="article" value="" /> <input type="button" id="article" value="" /> <input type="button" id="article" value="" /> <input type="button" id="article" value="" /> </fieldset> </div> <div> <fieldset> <legend><b>Adjectives:</b></legend> <input type="button" id="adject" value="old" /> <input type="button" id="adject" value="attractiv" /> <input type="button" id="adject" value="happy" /> <input type="button" id="adject" value="" /> <input type="button" id="adject" value="" /> <input type="button" id="adject" value="" /> <input type="button" id="adject" value="" /> </fieldset> </div> <div> <fieldset> <legend><b>Places:</b></legend> <input type="button" id="places" value="restroom" /> <input type="button" id="places" value="restaurant" /> <input type="button" id="places" value="mall" /> <input type="button" id="places" value="hotel" /> <input type="button" id="places" value="pub" /> <input type="button" id="places" value="" /> <input type="button" id="places" value="" /> </fieldset> </div> <div> <fieldset> <legend><b>Desires:</b></legend> <input type="button" id="desire" value="I would like to" /> <input type="button" id="desire" value="I desire" /> <input type="button" id="desire" value="I wish I knew how to" /> <input type="button" id="desire" value="my mother told me to" /> <input type="button" id="desire" value="my campanion tells me to" /> <input type="button" id="desire" value="" /> <input type="button" id="desire" value="" /> </fieldset> </div> <div> <fieldset> <legend><b>Actions:</b></legend> <input type="button" id="action" value="find" /> <input type="button" id="action" value="take a nap" /> <input type="button" id="action" value="kill" /> <input type="button" id="action" value="hurt you" /> <input type="button" id="action" value="beat you up" /> <input type="button" id="action" value="go to the bathroom" /> <input type="button" id="action" value="" /> </fieldset> </div> <div> <p id="output"><textarea id="task_list" rows="5" cols="130"></textarea></p> <p id="output"><input type="button" id="" value="Delete Traslations" /></p> </div> </div> </form> <script src="js/translate.js"></script> </body> </html> |
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