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JavaScript - Need Help With Input Box Background Colour
Hi All,
I quite new to JavaScript and find myself stuck while trying to change the background colour of an input box. I have an external js file and everything seems to work perfectly but for some reason I cant get the colour to change. Any help is REALLY appreciated! Code:
function validateID(id, name, value)
{
var regEx = /(abc)/;
var result = regEx.test(value);
alert(value + " " + result + " " + regEx + " " + name);
if (result == true)
{
userFeedback(id, '<--Input Is Valid');
document.getElementsByName(name).style.backgroundColor='green';
}
else
{
userFeedback(id, '<--Error: Input Is Not Valid');
}
}
Reply With Quote 01-12-2015, 11:35 AM #2 VIPStephan View Profile View Forum Posts Visit Homepage The fat guy next door Join Date Jan 2006 Location Halle (Saale), Germany Posts 8,989 Thanks 6 Thanked 1,054 Times in 1,027 Posts Don’t change styles with JavaScript. In order to separate the concerns (content/style/behavior) you should add/remove a class to the element and apply styles with CSS using that class as selector. Every contemporary browser has a developer console built in, look into the JS console and see if there are any errors coming up. Other than that, it helps if you posted a link to your page so we can see ourselves without having to guess. Reply With Quote 01-12-2015, 11:59 AM #3 murtagh View Profile Similar TutorialsI'm just trying to do something pretty simple which is an alert box which will give me the background color. So simple...that it doesn't want to work, that is! The line the body is onmouseover: Code: <p id="metallic" onMouseOver="switchElementColour('metallic');">metallic c-prints</p>
The function is as follows Code: function switchElementColour(elementName){
var tryId = document.getElementById(elementName);
var yrf = tryId.style.backgroundColor;
alert(yrf);
}
I've tried a number of different variations, including: messing with the quotes 'hard coding' the id ("metallic") in the function (although I don't want to leave it there) changing the code around based on stuff found online ...but I keep coming back to the above. The result is a blank alert box (no errors, just blank). The element name is getting passed, because when I create an alert box in the function that looks like this: Code: alert(elementName); The result is an alert box that says metallic (no quotation marks). Au secours por favore? Hi. I am looking for a way to have a button that toggles the background colour of my website. So for instance, I will have one button called 'switch to light', when its clicked it switches the colour of the background to a light colour, and another button replaces this that says 'switch to dark', and so on. The main problem is I have no idea how to store this information when the user is on the site so when the page is refreshed the colour is remembered. I am a complete newbie to Javascript, so any help will be greatly appreciated! Thanks I have a JS that works, but only on the first Dynamically created check box and once the colour has chaned it wont change back when clicked again Please inspect my code to see exactly what I mean ... Code: <?php
function create_time_range($start, $end, $by='30 mins') {
$start_time = strtotime($start);
$end_time = strtotime($end);
$times = array();
for ( ;$start_time < $end_time; ) {
$times[] = $start_time;
$start_time = strtotime('+'.$by, $start_time);
}
$times[] = $start_time;
return $times;
}
// create array of time ranges
$times = create_time_range('0:00', '23:00', '1 hour');
// $times = create_time_range('9:30am', '5:30pm', '30 mins');
// format the unix timestamps
foreach ($times as $key => $time) {
$times[$key] = date('H:i', $time);
}
//print '<pre>'. print_r($times, true).'</pre>';
$days = array(
'Sunday',
'Monday',
'Tuesday',
'Wednesday',
'Thursday',
'Friday',
'Saturday',
);
$s_day = array(
'Sun',
'Mon',
'Tue',
'Wed',
'Thu',
'Fri',
'Sat',
);
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<style type="text/css">
legend{
font-family:Arial, Helvetica, sans-serif;
font-size:12px;
}
fieldset{
width:300px;
height:auto;
}
label{
font-family:Arial, Helvetica, sans-serif;
font-size:9px;
display:inline-table;
width:50px;
}
.short{
font-family:Arial, Helvetica, sans-serif;
font-size:9px;
display:inline-table;
width:15px;
}
.on_lbl{
font-family:Arial, Helvetica, sans-serif;
font-size:9px;
display:inline-table;
width:100px;
}
#myfield{
display: none;
}
#Toptions{
}
</style>
<script type="text/javascript">
function disshow(num)
{
var dayname = new Array('Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday');
document.getElementById('legend').innerHTML = dayname[num];
document.getElementById('myfield').style.display = 'block';
}
/* Color Changes*/
function changeColour () {
if (document.getElementById('Toptions').style.backgroundColor=='green') {
document.getElementById('Toptions').style.backgroundColor='red'
}
else if (document.getElementById('Toptions').style.backgroundColor=='red') {
document.getElementById('Toptions').style.backgroundColor=='green'
}
}
</script>
</head>
<body>
<?php
// Days Active
echo("<form method=\"POST\">");
echo("<fieldset><legend>Days Active</legend>");
for ($i=0; $i<sizeof($days); $i++){
echo("<div class=\"on_lbl\">
<input type=\"checkbox\" name=\"dayOption\" value=\"" . $i . "\" id=\"option" . $i . "\">
<label for=\"option" . $i . "\">" . $days[$i] . "</label>
</div>");
}
echo ("</fieldset>");
// Select Days for Schedule
echo ("<fieldset><legend>Schedule Times</legend>");
for ($i=0; $i<sizeof($s_day); $i++)
{
echo("<input type=\"radio\" name=\"sdayOption\" value=\"" . $i . "\" id=\"opt" . $i . " \" onclick=\"disshow('$i')\">
<label class=\"short\">$s_day[$i]</label>");
}
echo("</fieldset>");
// Day: Schedule show Hours
echo "<div id=\"myfield\">";
echo("<fieldset><legend id=\"legend\">day</legend>");
for ($i=0; $i<sizeof($times); $i++)
{
echo("<span id=\"Toptions\" style=\"background-color:green;\"><input type=\"checkbox\" name=\"timeOption\" checked=\"checked\" value=\"" . $i . "\" id=\"Toption" . $i . "\" onClick=\"changeColour()\">
<label for=\"timeOption" . $i . "\">" . $times[$i] . "</label></span>");
}
//<input type=\"submit\" value=\"Save\">
echo ("</fieldset>"); echo ("<input type=\"submit\" value=\"Update\"><input type=\"submit\" value=\"Check All\"></form>");
echo "</div>";
?>
</body>
</html>
I am at my wits end and have spent over 2 hours looking into this... Hi, Sorry to bother you all with this but I'm really new to JavaScript and can't figure this out but I'm sure it's probably quite simple for you guys. I've been using this bit of code to limit the number of characters in a text field (taken from http://www.shiningstar.net/articles/...reacounter.asp: Code: <SCRIPT LANGUAGE="JavaScript">
function textCounter(field,cntfield,maxlimit) {
if (field.value.length > maxlimit) // if too long...trim it!
field.value = field.value.substring(0, maxlimit);
// otherwise, update 'characters left' counter
else
cntfield.value = maxlimit - field.value.length;
}
// End -->
</script>
<form name="myForm"
action="/articles/articles/javascript/dynamictextareacounter.asp?ID=<%=siteID%>"
method="post">
<b>One Function to Count and Limit Multiple Form Text Areas</b><br>
<textarea name="message1" wrap="physical" cols="28" rows="5"
onKeyDown="textCounter(document.myForm.message1,document.myForm.remLen1,125)"
onKeyUp="textCounter(document.myForm.message1,document.myForm.remLen1,125)"></textarea>
<br>
<input readonly type="text" name="remLen1" size="3" maxlength="3" value="125">
characters left
<br>
<textarea name="message2" wrap="physical" cols="28" rows="5"
onKeyDown="textCounter(document.myForm.message2,document.myForm.remLen2,125)"
onKeyUp="textCounter(document.myForm.message2,document.myForm.remLen2,125)"></textarea>
<br>
<input readonly type="text" name="remLen2" size="3" maxlength="3" value="125">
characters left
<br>
<input type="Submit" name="Submit" value="Submit">
<br>
</form>
What I'd like to do is make the background colour and maybe the font colour change on the 'characters left' field depending on the value of that field. So most of the time the colour is green but when the field = 0, the background colour changes to red. Can I just add to the function above or will I need a new one? If anyone could help, that would be great Cheers Hello All I was hoping you guys can help. I have 3 radio fields which when clicked on I want it to change the background colour of the table its within. The radio fields have the same name so only one can be selected at once. At the moment its changing the background yellow but if I click another radio field its not resetting back to normal (white). Im not sure how to achieve this is javascript... Here is the code im using now: Code: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<script type="text/javascript" language="javascript">
function swapColor(oCheckbox) {
var pop = oCheckbox, checkedcolor = 'yellow';
while (pop.nodeType != 1 || pop.nodeName.toLowerCase() != 'table')
pop = pop.parentNode;
if (typeof pop.oldcolor == 'undefined') pop.oldcolor = pop.style.backgroundColor;
pop.style.backgroundColor = (oCheckbox.checked) ? checkedcolor : pop.oldcolor;
}
</script>
</head>
<body>
<table>
<tr>
<td>
<input type="radio" name="change" value="0" onchange="swapColor(this) checked" />11111111
</td>
</tr>
</table>
<table>
<tr>
<td>
<input type="radio" name="change" value="1" onchange="swapColor(this)" />22222222
</td>
</tr>
</table>
<table>
<tr>
<td> <input type="radio" name="change" value="2" onchange="swapColor(this)" />33333333
</td>
</tr>
</table>
</body>
</html>
I would appreciate any help! Thanks! I'm trying to use javascript to have my webpage black at night and bright blue (#2A7FFF) in the day time. How would I go about this? :/ I have also tried to use javascript to change a picture depending on the time of day, this is what I have used. IN THE <head> Code: <script type="text/javascript">
var hourofday = thedate.getUTCHours();
function sun()
{
// return TRUE if it's day
if (hourofday > 7 && hourofday < 10) {
return true;
}
return false;
}
</script><script type="text/javascript">
var hourofday = thedate.getUTCHours();
function sun()
{
// return TRUE if it's day
if (hourofday > 7 && hourofday < 10) {
return true;
}
return false;
}
</script>
IN THE <body> Code: <div id="layer1" style="position:absolute; top:5px; left:5px; width:190px; height:190px; z-index:1; padding:5px; border:#000000 2px solid;background:color:#000000;">
<script type="text/javascript">
if (sun()) {
document.write("<img src="www.oliverbinns.webs.com/images/sun.png" />");
} else {
document.write("<img src="www.oliverbinns.webs.com/images/moon.png" />");
}
</script>
</div>
Hi Guys, I have a little question... I know that adding Code: onclick="document.body.style.backgroundColor='#F3B90C'; to a div will change the body background colour to the above colour.. But what I was wondering was this.. Is it possible, instead of adding the code to the actaul div itself to pass the function like this... Code: <script type="text/javascript">
$("Object").click(function(){
document.body.style.backgroundColor = "#000000";
});
</script>
Any help/info is appreciated Kind regards, paffley How do I do this? I've set up javascript to change the background colour depending on what colour square the user clicks on, this is working fine. However, I want to be able to set an initial colour, other than white, and then let the user chose their own. here is my code so far. <script language="JavaScript"> <!-- function changeBGC(color){ document.bgColor = color; } //--> </script> Then on the buttons: <a href="#" onclick="javascript:changeBGC('#486970')"><img src="images/blueSquare.jpg" alt="a" width="25" border="0" /></a> <a href="#" onclick="javascript:changeBGC('#dd737b')"><img src="images/pinkSquare.jpg" alt="x" width="25" /></a> <a href="#" onclick="javascript:changeBGC('#4f814e')"><img src="images/greenSquare.jpg" alt="cx" width="25" /></a> <a href="#" onclick="javascript:changeBGC('#594b31')"><img src="images/brownSquare.jpg" alt="s" width="25" /></a> <a href="#" onclick="javascript:changeBGC('#ffffff')"><img src="images/whiteSquare.jpg" alt="x" width="25" /></a> I want the page to be initially set to the brown colour, then I want the user to be able to choose their own colour. Thanks for any help. How do I change a text input's background when the user hits "Enter" or Key #13. The text-input field currently light's up to blue when hovered over, then it turns green when it is focused on, and now I want it to turn pink when you submit it. (This can be seen at http://ocmd.co.nr/ap) ------------------ Also, if anyone knows how I can redirect the user depending on there input, that'd be great. Regularly, it just runs a Google Search, but if I could get it so that when someone typed in, "chat room 1" for example, it'd open up a link or a new window w/ that. 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. I have a problem with adding new inputs to a form (if and when required), Internet Explorer is fine but in Firefox if any previous input fields are filled when the more button is clicked they get reset to blank. JS: Code: fields = 0;
function addInput() {
if (fields != 100) {
document.getElementById('input').innerHTML += "<input type='text' name='input[]' size='30' />";
fields += 1;
} else {
document.getElementById('input').innerHTML += "<br />Maximum 100 fields allowed.";
document.form.add.disabled=true;}
}
form: Code: <form action="index.php" method="post"> <div id="input"> <input type="text" name="input[]" size="30" maxlength="15" /> </div> <!-- button --> <div id="more"> <input type="button" onclick="addInput()" name="add" value="More" /> </div> <!-- // button --> <input type="submit" name="submit" value="Submit" /> </form> as usual any help is appretiated .. I like to figure out in my ready made For Loop it out puts a list of names and amounts I want to figure out how to put in a colour scheme. such as having every second row in yellow highlight? here is my code Code: <title>The Lighthouse</title>
<link href="lhouse.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="list.js"></script>
<script type="text/javascript">
total=0;
for (var i=0; i<amount.length; i++)
{
total=total+amount[i];
}
document.write(total);
</script>
</head>
<body>
<div id="title">
<img src="logo.jpg" alt="The Lighthouse" />
The Lighthouse<br />
543 Oak Street<br />
Delphi, KY 89011<br/>
(542) 555-7511
</div>
<div id="data_list">
<script type="text/javascript">
document.write('<table'+' border="1"'+' rules="row"'+'cellspacing="0">'+'<tr>'+'<th>Date</th>'+'<th>Amount</th>'+'<th>First Name</th>'+'<th>Last Name</th>'+'<th>Address</th>'+'</tr>');
for (var i=0; i<date.length; i++){
document.write('<tr>'+'<td>'+date[i]+'</td>'+'<td>'+amount[i]+'</td>'+'<td>'+firstName[i]+'</td>'+'<td>'+lastName[i]+'</td>'+'</tr>');}
</script>
</table>
</div>
Any suggestions on how to add the colour within the loops How come this isn't working? document.getElementById('glance').style.display='block'.color='gold'; Hi i am trying to change the colour of the text in my menu bar, i know you can do this with css or jquery but i want to try and do it with javascript in an external script sheet. I want to use the onmouseover and onmouseout functions to change the colours, and i want it so their are different colours for each menu item. Can anybody help me? Hi there just wondering if its possible to make a text box in java script and then for that box 2 change colour when the user inputs something. For example if they enter 3 it will turn green but if they enter anything else then it will turn red. Thanks Hi, I have 3 sum fields which I want to change to a red colour if the value is > or < 100. Apparently this is a DAP, but I am using javascript to tweek some of the settings in DAP. function subtotal() if(document.getElementById("Sum1").value>100&&<100) { this.style.cssText='Z-INDEX: 2; LEFT: 6.667in; WIDTH: 0.729in; COLOR: red' { else this.style.cssText='Z-INDEX: 2; LEFT: 6.667in; WIDTH: 0.729in; COLOR: #339966' </SCRIPT> <SPAN class=MSTheme-Label id="Sum1_Label" style="Z-INDEX: 1; LEFT: 0.25in; OVERFLOW: hidden; WIDTH: 0.711in; POSITION: absolute; TOP: 0.125in; HEIGHT: 0.161in">Totals:</SPAN><SPAN class=MsoBoundSpan id="Sum1" onmouseover="subtotal()" dataFormatAs=TEXT style="Z-INDEX: 2; LEFT: 5.416in; WIDTH: 0.729in; COLOR: #339966; POSITION: absolute; TOP: 0.125in; HEIGHT: 0.187in" MsoTextAlign="General">Sum of Product 1</SPAN><SPAN class=MsoBoundSpan id="Sum2" onmouseover="subtotal()" dataFormatAs=TEXT style="Z-INDEX: 2; LEFT: 6.667in; WIDTH: 0.729in; COLOR: #339966; POSITION: absolute; TOP: 0.125in; HEIGHT: 0.187in" MsoTextAlign="General">Sum of Product 2</SPAN><SPAN class=MsoBoundSpan id="Sum3" dataFormatAs=TEXT style="Z-INDEX: 2; LEFT: 7.917in; WIDTH: 0.729in; COLOR: #339966; POSITION: absolute; TOP: 0.125in; HEIGHT: 0.187in" MsoTextAlign="General">Sum of Product 3</SPAN></DIV> I'm a noobie at coding, and I was wondeirng if anyone can help me with the coding. Many Thanks Hey guys, I have a colour picker on my site, see it at http://www.ludatha.com Now I want to change the colour of the links on the page, don't worry I know how to do all this. It's just if someone chooses full black (#000000) the theme looks awesome, but the links on the dark background are invisible. Similarly if someone chooses full white (#ffffff) then you can't see the text on the white background. So I want to know if you geniuses can make it so when a variable containing a hex, like #000000 is set as the main colour, then the link colour is changed to #666666 so you can still see it, but I want it to work with colours, so if you had #360000 (dark red) then the link colour would be something like #a10000. I know this is possible, somehow... I hope I have explained it well enough for you to understand, here is my code to change the background: Code: onChange: function (hsb, hex, rgb) {
$('.colour-picker-colour').css('backgroundColor', '#' + hex);
$('.background').css('backgroundColor', '#' + hex);
$('.colour').css('backgroundColor', '#' + hex);
$('.colour-text').css('color', '#' + hex);
$('a .colour-text').css('color', '#' + hex);
$('.colour-text-hover:hover').css('color', '#' + hex);
$('.tabs a:hover').css('color', '#' + hex);
$('.seperator').css('backgroundColor', '#' + hex);
$.cookie('ludatha_colour', hex, { expires: 365 });
}
P.S. My site may not look right for a few hours as the images and CSS is updating. Dear All, I have tried to change the text colour and size but with no successful. I have two files. (a) Test.html (b) marquee.js Any advise is highly appreciated. (a) Test.html code is stated as below : <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> <html> <head><script type="text/javascript" src="marquee.js"></script> <meta http-equiv="Content-Type" content="text/html;charset=ISO-8859-1" > <title>Test</title> </head> <center> <body bgcolor="#fffff"><div id="fade_base" style="BORDER-RIGHT: 0px dotted; PADDING-RIGHT: 0px; BORDER-TOP: black 0px dotted; PADDING-LEFT: 5px; PADDING-BOTTOM: 5px; BORDER-LEFT: black 0px dotted; WIDTH: 250px; LINE-HEIGHT: 1.8em; PADDING-TOP: 5px; BORDER-BOTTOM: black 0px dotted; HEIGHT: 60px"> <br> <strong><em><a id="fade_link"></a></em></strong> </div> </center> </body> </html> (b) marquee.js file is stated as below function setupFadeLinks() { arrFadeLinks[0] = ""; arrFadeTitles[0] = "..Business Presentation..."; arrFadeLinks[1] = ""; arrFadeTitles[1] = "..Art of Public Speaking..."; arrFadeLinks[2] = ""; arrFadeTitles[2] = "...Business Meeting..."; arrFadeLinks[3] = ""; arrFadeTitles[3] = "..Increase Confidence..."; arrFadeLinks[4] = ""; arrFadeTitles[4] = "...Workshop..."; } // You can also play with these variables to control fade speed, fade color, and how fast the colors jump. var m_FadeOut = 255; var m_FadeIn=0; var m_Fade = 0; var m_FadeStep = 3; var m_FadeWait = 1600; var m_bFadeOut = true; var m_iFadeInterval; window.onload = Fadewl; var arrFadeLinks; var arrFadeTitles; var arrFadeCursor = 0; var arrFadeMax; function Fadewl() { m_iFadeInterval = setInterval(fade_ontimer, 10); arrFadeLinks = new Array(); arrFadeTitles = new Array(); setupFadeLinks(); arrFadeMax = arrFadeLinks.length-1; setFadeLink(); } function setFadeLink() { var ilink = document.getElementById("fade_link"); ilink.innerHTML = arrFadeTitles[arrFadeCursor]; } function fade_ontimer() { if (m_bFadeOut) { m_Fade+=m_FadeStep; if (m_Fade>m_FadeOut) { arrFadeCursor++; if (arrFadeCursor>arrFadeMax) arrFadeCursor=0; setFadeLink(); m_bFadeOut = false; } } else { m_Fade-=m_FadeStep; if (m_Fade<m_FadeIn) { clearInterval(m_iFadeInterval); setTimeout(Faderesume, m_FadeWait); m_bFadeOut=true; } } var ilink = document.getElementById("fade_link"); if ((m_Fade<m_FadeOut)&&(m_Fade>m_FadeIn)) ilink.style.color = "#" + ToHex(m_Fade); } function Faderesume() { m_iFadeInterval = setInterval(fade_ontimer, 10); } function ToHex(strValue) { try { var result= (parseInt(strValue).toString(16)); while (result.length !=2) result= ("0" +result); result = result + result + result; return result.toUpperCase(); } catch(e) { } } Best Regards Hexian Hi All I'm trying to get a drop down box to change the colour of more than 1 td cell at a time. I can get the boxes to work with single cells but not more than one. I've tried giving the additional cell the same id but that doen't seem to work It's probably simple but I just can't seem to see it. Thanks in anticipation. Mike http://www.blandfordsac.co.uk/ Code: <script type="text/javascript">function changeColor(bg) {document.getElementById("a").style.backgroundColor = bg;}</script>
<script type="text/javascript">function changeColorb(bg) {document.getElementById("b").style.backgroundColor = bg;}</script>
<script type="text/javascript">function changeColorc(bg) {document.getElementById("c").style.backgroundColor = bg;}</script>
<script type="text/javascript">function changeColord(bg) {document.getElementById("d").style.backgroundColor = bg;}</script>
Code: <tr><!-- row 1 --> <td id="a" height="205" width="345"><p align="center"> <a href="images/bd8/bd8n.jpg" target="_self" rel="wplightbox~#~~#~"> <img src="images/bd8/bd8n%20(WinCE).jpg" width="240" height="160" border="0" title="" alt="bd8n.jpg"> </a> </td> <td height="205" width="246" colspan="3"><h1 align="center"><span style="font-weight: 400"><font face="Arial">Bd 8</font></span></h1></td> <td id="b" height="205"><p align="center"> <a href="images/bd8/bd8e.jpg" target="_self" rel="wplightbox~#~~#~"> <img src="images/bd8/bd8e%20(WinCE).jpg" width="240" height="160" border="0" title="" alt="bd8e.jpg"> </a> </td> </tr> <tr><!-- row 2 --> <td> <p align="center"> <select name="level" onChange="changeColor(value)"> <option value="">Choose</option> <option value="#FFFFFF">White</option> <option value="#33FF00">Green</option> <option value="#000000">Black</option> <option value="#FF0000">Red</option> </select> </td> <td height="59" width="246" colspan="3"> </td> <td> <p align="center"> <select name="level" onChange="changeColorb(value)"> <option value="">Choose</option> <option value="#FFFFFF">White</option> <option value="#33FF00">Green</option> <option value="#000000">Black</option> <option value="#FF0000">Red</option> </select> </td> </tr> |
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