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JavaScript - Basic Question
Hi I'm new to javascript and have a simple question I'm sure somebody can help me with. I have a contact page on my website and trying to validate an email address, but can't get it to work.
I want to validate that my fields have been field out and as well, want to validate the email address. Validation of the forms works, however I can't get the email validation working.. What am I doing wrong? <div style="text-align:right;"> <form id="contact" action="contact.php" method="post" autocomplete="off"> <label><em>Name: </em><input type="text" id="name" name="name" class="input"/></label> <label><em>Email : </em><input type="text" id="email" name="email" class="input"/></label> <label><em>Message : </em><textarea name="message" id="message" cols="35" rows="5"></textarea></label> <label>CC Me: <input type="checkbox" name="cc" value="cc"></label> <input type="submit" class="button alignright" name="submit" id="submit" value="Send" style="margin:0"/> </form> </div> <script type="text/javascript"> var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i ; $("#contact").submit(function(ev) { if (!(filter.text($email) | ($("#name").val() == "" | $("#email").val() == "" | $("#message").val() == "") )) { $.lightbox().shake(); ev.preventDefault(); } }); </script> Similar TutorialsHello All Its my first post on this forum. I have a database setup with tables that use my form element names as column names. Now i have successfully retrieved column names and values from the server side to the client side. . I have the column name stored in var columnName How can I get the type of form element type and how can i set the value to it Thanks for your help #Javalove. . .unless otherwise stated. . .! Just a basic question.... I am fairly new here. Just wondering if this is just a part of life. It seems like when I load javascript code into a page, that each item I add, such as an accordian vertical navbar, image slider, etc, that each time I add one, the page loads a second or so slower with each one added. I would like some of these features, but is this just a part of life, or are there tricks to avoid the slower load time? It is not major time but after the 2 items I mentioned, it added on about 2 seconds. Just enough to make it a bit annoying. I read that $(document).ready(function() might slow me down but I do not see that statement in any of my .js files. Thanks, Buffmin. Can't seem to delete.
First post on the forum... I'm brand new to Javascript and I'm teaching myself using the Headfirst HTML5 book. One of the exercises early in the book is asking me to create a musical playlist where I can add songs that will show up on the screen and also be added to the DOM. However, I'm not able to get it to work or see where my error lies. Any feed back would be great. Here's my code: Code: <!doctype html>
<html lang="en">
<head>
<title>Webville Tunes</title>
<meta charset = "utf-8">
<script>
function init() {
var button = document.getElementById("addButton");
button.onclick = handleButtonClick;
window.onload = init;
}
function handleButtonClick() {
var textInput = document.getElementById("songTextInput");
var songName = textInput.value;
var li = document.createElement("li");
li.innerHTML= songName;
var ul = document.getElementById("playlist");
ul.appendChild(li);
alert ("Button was clicked!");
}
</script>
<link rel = "stylesheet" href="playlist.css">
</head>
<body>
<form>
<input type="text" id="songTextInput" size="40" placeholder="Song name">
<input type="button" id="addButton" value="Add Song">
</form>
<ul id="playlist">
</ul>
</body>
</html>
Hi, can anyone help me with a simple bit of javascript? I need to modify the following code for a date of birth selector to return false if they date of birth is less than 18 years old. jQuery.validator.addMethod("validDOB", function (str1, element) { var mon1 = parseInt(str1.substring(0,2),10); var dt1 = parseInt(str1.substring(3,5),10); var yr1 = parseInt(str1.substring(6,10),10); var date1 = new Date(parseInt(yr1), parseInt(mon1)-1, parseInt(dt1)); var date2 = new Date(); if(date2 < date1) { return false; } else { return true; } }, "Please enter valid date of birth"); thanks baronne Hi, I'm trying to create a video box on a website that plays a youtube video and then automatically plays random recommended videos with no break in playback. An endless playlist created by youtube based on the initial video. Youtube uses Javascript API. I have never used Javascript before but i'm just trying to get the video to play as above. There are few tutorials online and I couldn't find anyone trying to do a similar thing. If you have any idea how i'd go about it or if not where i could find some information to help. Thanks. I have this code, (a snippet of it below) which works, but how can I simplify it instead of repeating all the same code for the 12 different checks I have to run. If whatColor == A1 I need the search variable to equal fashion If whatColor == A2 I need the search variable to equal photography etc. Thanks Code: if (whatColor == 'A1') {
/* search: 'fashion', */
new TWTR.Widget({
version: 2,
type: 'search',
search: 'fashion',
interval: 2000, title: '', subject: '', width: 310, height: 240,
theme: {
shell: {
background: '#edecee', color: '#444444'
},
tweets: {
background: '#edecee', color: '#444444', links: '#e80f45'
}
},
features: {
scrollbar: true, loop: false, live: true, hashtags: true, timestamp: true, avatars: true,
behavior: 'all'
}
}).render().start();
} else if (whatColor == 'A2') {
/* search: 'photography', */
new TWTR.Widget({
version: 2,
type: 'search',
search: 'photography',
interval: 2000, title: '', subject: '', width: 310, height: 240,
theme: {
shell: {
background: '#edecee', color: '#444444'
},
tweets: {
background: '#edecee', color: '#444444', links: '#e80f45'
}
},
features: {
scrollbar: true, loop: false, live: true, hashtags: true, timestamp: true, avatars: true,
behavior: 'all'
}
}).render().start();
The Code, is from a twitter widget that pulls a twitter feed based on the search variable. This is the code straight from twitter. Code: <script src="http://widgets.twimg.com/j/2/widget.js"></script>
<script>
new TWTR.Widget({
version: 2,
type: 'search',
search: 'photography',
interval: 2000,
title: '',
subject: '',
width: 310,
height: 240,
theme: {
shell: {
background: '#edecee',
color: '#444444'
},
tweets: {
background: '#edecee',
color: '#444444',
links: '#e80f45'
}
},
features: {
scrollbar: false,
loop: false,
live: true,
hashtags: true,
timestamp: true,
avatars: true,
behavior: 'all'
}
}).render().start();
</script>
Hi, I've just started learning JavaScript - actually started about half an hour ago. I have an extensive knowledge of Lua (if you've heard of it), so the concepts of programming aren't new to me. This code isn't doing anything. The HTML code makes the hyper-linked pictured show, but it doesn't do anything when the mouse rolls over it. The JavaScript code is saved in scripts/titleImage_rollover.js, and I'll show the HTML code as well. JavaScript: Code: <!--
// image rollover for header
function image_rollover(){
//show a set of random images
switch(math.floor(math.random()*5+1))
{
case 1:
document.getElementById("logo").src = "images/t2m_logo.png";
break;
case 2:
document.getElementById("logo").src = "images/pighead10_halloween.png";
break;
case 3:
document.getElementById("logo").src = "images/pighead10_easter.png";
break;
case 4:
document.getElementById("logo").src = "images/pighead10_classic.png";
break;
case 5:
document.getElementById("logo").src = "images/pighead10_combat.png";
break;
}
}
//reset image to normal
function image_reset(){
document.getElementById("logo").src = "images/pighead10.png";
}
//-->
HTML: < 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>pighead10.com | Home</title>
<style type="text/css">
.link1 A:link{text-decoration:none;}
.link1 A:visited{text-decoration:none;}
.link1 A:active{text-decoration:none;}
.link1 A:hover{text-decoration:underline;color:blue;}
</style>
<script type="text/javascript" src="scripts/titleImage_rollover.js"></script>
</head>
<body style="font-family:arial;color:red">
<a href="http://www.roblox.com/User.aspx?ID=2969907">
<img id="logo" src="images/pighead10.png" width="150" height="200" onmouseover="image_rollover()" onmouseleave="image_reset()"/>
</a>
</body>
</html>
Also, is there a way to view some kind of output in JavaScript? How could a make a basic javascript encoder that can encode and decode text? (i just would want some tips on how to start) Hey guys! New user here and I just need a little help with some basic Javascript I must write a function that 'shows' the corresponding part of the form depending on what the user has selected. So... for example, if I select 'Pizza', the div #section2 with the question about Pizza type should be shown. All the sections that are not selected should be hidden. For example, if 'Mexican' is selected, the sections for 'Pizza' and 'Thai' should be hidden. I want this function to also display a message in the JavaScript console indicating which food type is selected. Apparently I'm supposed to use 'console.log("")'??? I'm using an external javascript file called prac8.js If anyone has any idea how to do this I'd be very greatful Code: <!DOCTYPE html>
<html>
<head>
<title>Prac 8 example</title>
<script type="text/Javascript" src="prac8.js"></script>
<style>
#section2, #section3, #section4 {
display:none; border:1px solid gray; padding:8px; margin-top:12px; width:400px;
}
#dessertmsg {
color:green;
}
</style>
</head>
<body>
<h1>Prac 8 example</h1>
<h2>A Food Survey</h2>
<form id="survey" action="#" method="post">
<div id="section1">
<label for="food">What is your favourite type of food?</label>
<select id="food" onchange="selection()">
<option value="pizza">Pizza</option>
<option value="mex">Mexican</option>
<option value="thai">Thai</option>
</select>
</div>
<div id="section2">
What is your favourite type of pizza?<br>
<label for="hawaiian">Hawaiian</label><input type="radio" id="hawaiian">
<label for="supreme">Supreme</label><input type="radio" id="supreme">
<label for="vegetarian">Vegetarian</label><input type="radio" id="vegetarian">
</div>
<div id="section3">
What is your favourite Mexican food?<br>
<label for="burrito">Burritos</label><input type="radio" id="burrito">
<label for="chilli">Chilli con carne</label><input type="radio" id="chilli">
<label for="taco">Tacos</label><input type="radio" id="taco">
</div>
<div id="section4">
What is your favourite Thai food?<br>
<label for="stir">Stir-fry</label><input type="radio" id="stir">
<label for="noodle">Noodles</label><input type="radio" id="noodle">
<label for="curry">Curry</label><input type="radio" id="curry">
</div>
<label for="dessert">What is your favourite dessert?*</label>
<input type="text" id="dessert" onchange="checkForm()"><br>
<div id="dessertmsg"> </div>
<input type="submit" value="Submit" id="subbutton" disabled>
</form>
</body>
</html>
Hi all, this is my first attempt at JavaScript code. I'm trying to write code for an Adobe Acrobat form. Here is my situation: I have several boxes, all containing numbers such as 2014, 08, and 000000000. I want to concatenate them all into one long number like 080000000002014. I've looked at a ton of sample code, but nothing I try seems to work. Any help is greatly appreciated.
http://i50.tinypic.com/2njcxn5.png basically.. a button that changes the color of that box.. the font to bold.. and changes a frame from two search engine websites. hey guys, i know this really hot girl and need to make her think we are right for eachother, to do this i need to 'tweak' a lovetest. i know the love test's answer depends on the number of the letters L,O,V,E,Y,O,U but i need an if function that adds up both name boxes and adds to 100%. here is code: // Made by ADAM - roflmao456 var test = ''; function checkLove(){ var l1 = test.GetControlText('love1'); var l2 = test.GetControlText('love2'); first = l1.toUpperCase(); firstlength = l1.length; second = l2.toUpperCase(); secondlength = l2.length; var LoveCount=0; for (Count=0; Count < firstlength; Count++) { letter1=first.substring(Count,Count+1); if (letter1=='L') LoveCount+=2; if (letter1=='O') LoveCount+=2; if (letter1=='V') LoveCount+=2; if (letter1=='E') LoveCount+=2; if (letter1=='Y') LoveCount+=3; if (letter1=='O') LoveCount+=1; if (letter1=='U') LoveCount+=3; } for (Count=0; Count < secondlength; Count++) { letter2=second.substring(Count,Count+1); if (letter2=='L') LoveCount+=2; if (letter2=='O') LoveCount+=2; if (letter2=='V') LoveCount+=2; if (letter2=='E') LoveCount+=2; if (letter2=='Y') LoveCount+=3; if (letter2=='O') LoveCount+=1; if (letter2=='U') LoveCount+=3; } amount=0; if (LoveCount> 0) amount= 5-((firstlength+secondlength)/2) if (LoveCount> 2) amount= 10-((firstlength+secondlength)/2) if (LoveCount> 4) amount= 20-((firstlength+secondlength)/2) if (LoveCount> 6) amount= 30-((firstlength+secondlength)/2) if (LoveCount> 8) amount= 40-((firstlength+secondlength)/2) if (LoveCount>10) amount= 50-((firstlength+secondlength)/2) if (LoveCount>12) amount= 60-((firstlength+secondlength)/2) if (LoveCount>14) amount= 70-((firstlength+secondlength)/2) if (LoveCount>16) amount= 80-((firstlength+secondlength)/2) if (LoveCount>18) amount= 90-((firstlength+secondlength)/2) if (LoveCount>20) amount=100-((firstlength+secondlength)/2) if (LoveCount>22) amount=110-((firstlength+secondlength)/2) if (firstlength==0 || secondlength==0) amount= "Err"; if (amount < 0) amount= 0; if (amount >99) amount=99; test.SetControlText('loveOutput',amount+"%"); return "[c=12]"+test.GetControlText('love1')+"[/c] + [c=29]"+test.GetControlText('love2')+"[/c] = [c=3]"+amount+"[/c]%"; } function OnGetScriptMenu(){ var ScriptMenu = "<ScriptMenu>"; ScriptMenu += "<MenuEntry Id='lovetest'>"; ScriptMenu += "Love Test"; ScriptMenu += "</MenuEntry>"; ScriptMenu += "</ScriptMenu>"; return ScriptMenu; } function OnEvent_MenuClicked(sMenuId){ if(sMenuId == "lovetest") {test = MsgPlus.CreateWnd("windows.xml","tester");} } function sendResult(){ for (var e = new Enumerator(Messenger.CurrentChats); !e.atEnd(); e.moveNext()){ if(test.GetControlText('love1')){ if(test.GetControlText('love2')){ e.item().SendMessage(checkLove()); } else { MsgPlus.DisplayToast("Love Test","Please enter in something in box 2."); } } else { MsgPlus.DisplayToast("Love Test","Please enter in something in box 1.") }}} function OntesterEvent_CtrlClicked(PlusWnd, ControlId){ if(ControlId == "startTest") {checkLove();} else if(ControlId == "sendResults") {sendResult();} else if(ControlId == "BtnClose") {PlusWnd.Close(1);} } END OF CODE please reply with a fixed script with a line like %=50+50 or something so the output is 100%. thanks hi all, just got to make a basic form for my assignemment but i cant seem to get it to work. please could somebody point me in the right direction? thank you Code: <head>
<script type="text/javascript">
function make(myform)
{
var name = form.nameinput.value ;
var age = form.ageinput.value ;
var location = form.locationinput.value ;
var z = form.team.selectedIndex ;
var team = form.team.options[z].value;
alert("Thank you " + name + ".Good luck supporting " + team + );
}
</script>
</head>
<body>
<form method="get" action="" name="myform">
<h2>Order form</h2>
<fieldset>
<p>Please enter your details</p>
Name: <input type="text" value="" name="nameinput"/><br/>
Age: <input type="text" value="" size="2" name="ageinput"/><br/>
Location: <input type="text" value="" name="locationinput"/>
<p>Choose your favourite football team</p>
<select name="team">
<option value="arsenal">Arsenal</option>
<option value="aston_villa">Aston Villa</option>
<option value="birmingham_city">Birmingham City</option>
<option value="blackburn_rovers">Blackburn Rovers</option>
<option value="bolton_wanderers">Bolton Wanderers</option>
<option value="burnley">Burnley</option>
<option value="chelsea">Chelsea</option>
<option value="everton">Everton</option>
<option value="fulham">Fulham</option>
<option value="hull">Hull</option>
<option value="liverpool">Liverpool</option>
<option value="manchester_city">Manchester City</option>
<option value="manchester_united">Manchester United</option>
<option value="portsmouth">Portsmouth</option>
<option value="stoke_city">Stoke City</option>
<option value="sunderland">Sunderland</option>
<option value="tottenham_hotspur">Tottenham Hotspur</option>
<option value="west_ham">West Ham</option>
<option value="wigan_athletic">Wigan Athletic</option>
<option value="wolverhampton_wanderers">Wolverhampton Wanderers
</option>
</select>
</fieldset>
<input type="button" onclick="make(this.form)" value="Submit Details" name="button"/>
</form>
I'm stumped. I realise it's something basic... This works - i.e. beeps on mouseover: Code: <html>
<head>
<script>
function EvalSound(soundobj) {
var thissound= eval("document."+soundobj);
thissound.Play();
}
</script>
</head>
...
<a href="#" onMouseOver="EvalSound('sound1')">Move mouse here</a>
...
<embed src="beep.mp3" autostart=false width=1 height=1 name="sound1" enablejavascript="true">
</body>
</html>
...but this doesn't work: (I get the error "undefined is null or not an object") Code: <html>
<head>
<script>
function EvalSound(soundobj) {
var thissound= eval("document."+soundobj);
thissound.Play();
}
</script>
</head>
...
<script language="JavaScript">
<!--
EvalSound('sound1');
change_it1() // activates an external .js
//-->
</script>
...
<embed src="beep.mp3" autostart=false width=1 height=1 name="sound1" enablejavascript="true">
</body>
</html>
What am I doing wrong? Gotta make the second idea work... Thanks Hey guys. I am pretty new to JS and programming. The company that I am working for put me on this project and I have a question. Here is a snippit for a form that we have. We use a dreamweaver extension "HDW form to database" to process the forms and put them in a mysql database. the wpform() is a validation function that has been written. what I want, is the fallowing, if you look at the code below in the option object, there are different categories... rock, funk, hip hop, synth etc. i want it so when one of them is selected, it goes to a different respected page. for example, if the value Rock is selected, and you press submit, it would take you to www.google.com . On the other hand if the value Funk is submitted, it will take you to www.yahoo.com . Code: <form action="/HDWFormToDatabase/FormToDatabase.php" method="post" name="theForm" onSubmit="return wpform()" accept-charset="iso-8859-1">
<select size="1" name="genre">
<option selected="selected" value="genre">Choose a Genre!</option>
<option value="Rock">Rock</option>
<option value="Funk">Funk</option>
<option value="Hip Hop">Hip Hop</option>
<option value="80s">Synthesizer</option>
<option value="Techno">Techno</option>
</select>
<input type="hidden" name="hdwok" id="hdwok" value=" URL GOES HERE" />
</form>
Normally, when this option object is not present, the user presses submit and after the form gets processed to the database, the browser forwards to the "URL GOES HERE" value. However, I am not sure exactly what to do now since the URL which it is forwarded to will change. can someone give me a hint on how to make this happen? just some general advice for a newb? I would write it but I am pretty lost. I was thinking of including a if statement in the wpform() function that goes something like: Code:
if (document.theForm.genre.selectedIndex == 0)
{
alert("Please select your genre.");
document.theForm.genre.focus();
return (false);
}
if (document.theForm.genre.selectedIndex==1)
{
window.location = "http://www.google.com/";
return(true);
}
if (document.theForm.genre.selectedIndex==2)
{
window.location = "http://www.yahoo.com/";
return(true);
}
etc etc Would this work? Is there a more efficient way of doing something like this that I should know of due to my lack of JS skills? Thanks in advance so much for help. Hi, im sorta a newbie but have a few questions i cannot find online anywhere. By the way im trying to create a chrome extension . Its a fairly simple extension, all i want it to do is select a few buttons automatically when the page is loaded. Without me having to click anything. A bot persay. How to automatically select a button/drop down menu How to save a form How to submit a form to a website How it works if you dont get it? Selecting a certain size like S/M/L, color, or anything of that nature AUTOMATICALLY WITHOUT HAVING TO CLICK ANYTHING. Which then adds to my cart. Thats all i want it to really do. Thanks for reading. Hi, i need to ask the user for details about a car, i will not know how many cars are going to be stored and therefore need an array i think. I need the function for asking the user and will need to repeat the code later in a menu. Can somebody help me please? at this stage i just want to ask the user for input, store it in array and use an alert to check if it works? Thanks. Code:
<html>
<script>
// Purpose: Gather car information and store it in a datbase
// Ask user for REG info, CAR MAKE, car VIN
var CarDetails = {
RegNum:"",CarMake:"", CarVin:"";
}
function enterRegNum() {
prompt("Enter Reg number");
}
function enterCarMake() {
prompt("Enter car make");
function enterCarVin() {
prompt("Enter Car Vin number")
}
</script>
</html>
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