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JavaScript - Need Help Fixing My Javascript Login Code
Hi,Im a student studying web design and I am stuck with my JavaScript Login code.
I want my code to be able to log a user in if they have the correct username and password fields.however,if the password or username is wrong i would like to display a message in the label that says 'not valid' if they do not put anything into the username or password field,the label should read 'field cannot be empty.' this is what i have so far.im sure i have done something wrong.thank you in advance function validate() { var login="true"; document.getElementById("lblFnameVal").innerHTML=""; var checkForX = document.getElementById("fname").value; document.getElementById("lblpass").innerHTML=""; var passw = document.getElementById("fpass").value; if(document.getElementById('checkForX').value.length==0) { document.getElementById("lblFnameVal").innerHTML="username cannot be empty"; document.getElementById("lblFnameVal").style.color="red"; login="false"; } else if(document.getElementById('passw').value.length==0) { document.getElementById("lblFnameVal").innerHTML="username cannot be empty"; document.getElementById("lblFnameVal").style.color="red"; login="false"; } else (checkForX != "username" ) { document.getElementById("lblFnameVal").innerHTML="not valid"; document.getElementById("lblFnameVal").style.color="red"; login="false"; } else if(passw !="password") { document.getElementById("lblpass").innerHTML="not valid"; document.getElementById("lblpass").style.color="red"; login="false"; } if(login =="true" ) { document.getElementById("mypassForm").submit() } } Similar TutorialsHi, I know nothing about javascript but I was able to handle the instructions to install the login/password featu http://www.javascriptkit.com/script/...ginpass2.shtml works great! however, when someone views the source code, they're able to see what the password is. additionally they can see the url of the page it would take them if they entered the password. how do i protect against this vulnerability? thanks in advance! I've been working on this code and I need help fixing it. <!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>Dog</title> <script> var fido = { name: "Fido", weight: 20.2, age: 4, breed: "mixed", activity: "fetch balls" }; var gleen = { name: "Gleen", weight: 15, age: 5, breed: "PitBull", activity: "fetch balls" }; var bensy = { name: "Bensy", weight: 25, age: 10, breed: "Terrier", activity: "Getting massaged" }; var lily = { name: "Lily", weight: 25, age: 20, breed: "Great Dane", activity: "Resting" }; var ben = { name: "Ben", weight: 30, age: 2, breed: "Mostiff", activity: "running" }; function bark(dog) { if (dog.weight > 20) { bark = "WOOF WOOF"; } else { bark = "woof woof"; } } var barks = bark(ben) function doggies(dogs, dogz) { if (dogs) { console.log (dogz.name + " " + "says" + " " + bark + " " + "give me" + " " + dogz.activity); } else { console.log (dogz.name + " " + "says" + " " + bark + " " + "give me" + " " + dogz.activity); } } doggies(fido, fido); doggies(gleen, gleen); doggies(bensy, bensy); doggies(lily, lily); doggies(ben, ben); </script> </head> <body></body> </html> It will work on console, and every body will say WOOF WOOF ( in uppercase). Except that gleen should say woof woof (in lowercase) since he weighs less then 20 pounds. What did I do wrong in my code? Hi, I'm very much a newbie regaridng javascript and have been looking around and experimenting and have created a javascript although it does not function(Javascript code below), can someone help me fix it? Many Thanks. function gotoURL(){ var newURL = document.GotoForm.theURL.value if (newURL == "info1" || "info2" || "info3" || "info4" || "info 5"){ document.location.href=newURL+".html" }else{ alert("You entered an invalid value"); }} Hey guys. This is vague because I dont know what exactly to tell you but please reply with me so I can fix this. I want to add something to my forum. Specifically, I want to add a HTML and Picture button for when you go to reply. Like posting an article here, there are also these options (font, alignment, insert image) I do not know how to achieve this but shouldnt be too hard. Here are the two sources you will need to look through to help me fix the forum. http://neoweather.com/FWFORUM.JS http://static.websimages.com/JS/fw.js THANKS I found his basic code online for a popup login but I don't know how to get the information from it either into php variables or whatever i need to do Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<title></title>
<style type="text/css">
#popupbox{
margin: 0;
margin-left: 40%;
margin-right: 40%;
margin-top: 50px;
padding-top: 10px;
width: 20%;
height: 150px;
position: absolute;
background: #FBFBF0;
border: solid #000000 2px;
z-index: 9;
font-family: arial;
visibility: hidden;
}
</style>
<script language="JavaScript" type="text/javascript">
function login(showhide){
if(showhide == "show"){
document.getElementById('popupbox').style.visibility="visible";
}else if(showhide == "hide"){
document.getElementById('popupbox').style.visibility="hidden";
}
}
</script>
</head>
<body>
<div id="popupbox">
<form name="login" action="" method="post">
<center>Username:</center>
<center><input name="username" size="14" /></center>
<center>Password:</center>
<center><input name="password" type="password" size="14" /></center>
<center><input type="submit" name="submit" value="login" /></center>
</form>
<br />
<center><a href="javascript:login('hide');">close</a></center>
</div>
<p>
Blablalblalbla Blablalblalbla Blablalblalbla Blablalblalbla BlablalblalblaBlablalblalblaBlablalblalblaBlablalblalbla
</p>
<p>
XYZ XYZ XYZ XYZ XYZ XYZ XYZ XYZ XYZ XYZ XYZ XYZ XYZ XYZ XYZ XYZ
</p>
<p><a href="javascript:login('show');">login</a></p>
</body>
</html>
I put the css on a separate page and just copied the login link and the javascripts. I don't know how to get the information into php variables so i can check it with the database. any help is appreciated! I know I'm just asking for the answer but I don't know javascript and i dont want to spend a month learning it just for a login form. If your going to just say go learn javascript then don't post . So I have made a website that you need a password to get into. The following javascript code works in Internet Explorer but, I need it to work in Safari also. Can anyone please rewrite this code, as simple as possible, to work in both Safari and Internet Explorer ? [CODE ]<!--// function mainpass() { if (pass.value=="password") {location="correct.HTML"}; else{location="wrong.HTML"}; } //--> [/CODE] Thanks in advance... hey guys im not sure if this is javascript or not, but how do i make this? i only want one username/password to catch spam HI, I have a website with a Login page (no username only password required), but at the moment it only works when you click Login after entering the password. How could i make it so that pressing Enter will do the same???? here is the full index.html file 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>Please login</title>
<link rel="stylesheet" href="css/login.css" type="text/css" media="all" />
<!--[if IE 7]><link rel="stylesheet" href="css/style.ie7.css" type="text/css" media="screen" /><![endif]-->
</head>
<body>
<div id="Main">
<div class="corner TL"></div>
<div class="corner TR"></div>
<div class="corner BL"></div>
<div class="corner BR"></div>
<div class="logo"></div>
<div class="loginForm">
<form name="login-form">
<script language="javascript">
<!--
/*Change the usename,password and the page to redirect the user to to suit your own site*/
function login(form)
{
if (form.password.value=="england2000")
{
location="/en"
}
else {
alert("Sorry Invalid Password")
}
}
//-->
</script>
<label>PASSWORD</label> <input class="field" name="password" type="password" />
<input type="button" value="Login" class="loginB" onClick="login(this.form)">
</form>
</div>
<div style=" clear:both;"></div></div>
</body>
</html>
Hello, I have been working on a website for a while now and have started working on user created accounts for my javascript login. Here is the code for the login: <h3 align="center"> Sign In</h3> <form id="Form1" onsubmit="login()"> <p align="center"> User Name: <input type="text" id="userid"></p> <p align="center"> Password: <input type="password" id="pswrd"></p> <p align="center"><input type="submit" value="Login"/> <input type="reset" value="Cancel"/></p> </form> <script language="javascript"> UNArray=["User1","User2","User3"] PWArray=["Password1","Password2","Password3"] function login(){ for(i=0;i<=UNArray.length;i++){ if(document.getElementById("userid").value==UNArray[i]){ if(document.getElementById("pswrd").value==PWArray[i]){ window.open("Home.html") } } } } Here is the code for the "Create An Account" page: <form id="form1"> Your First Name: <input type="text" name="firstname"> <br/> <br/> Desired Username: <input type="text" name="username"> <br/> <br/> Email (Optional): <input type="text" name="Email"> <br/> <br/> Password: <input type="password" name="password"> <br/> <br/> <input type="submit" value="Submit"> </form> Can Anyone help me with this? Thanks! Hi, I need some help here- below is the script I'm trying to externalize but whatever I've tried doesn't work (the Login button doesn't nothing when the script is external). Thanks!!! <form name="login" autocomplete="off"> <p>User Name : <input type="text" name="username"></p> <p>Password : <input type="password" name="password"></p> <input type="button" value="Login" name="Submit" align="right" onClick="Login()";> </p> </form> </div> <script language="JavaScript"> function Login(){ var done=0; var username=document.login.username.value; username=username.toLowerCase(); var password=document.login.password.value; password=password.toLowerCase(); if (username=="bruceclements" && password=="berlin") { window.location="users/bruceclements.html"; done=1; } if (username=="free" && password=="java") { window.location="page2.html"; done=1; } if (username=="member3" && password=="password3") { window.location="page3.html"; done=1; } if (done==0) { alert("Invalid login!"); } } </script> Hello i need help with a simple single field javascript login form, i am building a small website for I and my classmates. i want it to be able to redirect each user to a specific page when a corresponding passcode is entered, i know its unsafe but we dont plan on keeping valuable information on the site, i dont know about MSQL and dont even wish to use it, the code works at this level but am unable to add users since i dont understand javascript if someone could help me i will be very grateful thanks in advance /*here is the code i got so far*/ <tittle> Enter Passcode to proceed </title> <h1 style="font-family:Comic Sans Ms;text-align="center";font-size:20pt; color:#00FF00;> </h1> <form name="login"> Passcode: <input type="text" name="userid"/> <input type="button" onclick="check(this.form)" value="Login"/> <input type="reset" value="Cancel"/> </form> <script language="javascript"> function check(form)/*function to check userid */ { if(form.userid.value == "JohnDoe") /* checkes userid */ { window.open("johndoe.php")/*target page */ } else { alert("Invalid Passcode, please try again!")/*error message*/ } } I have the following code for determining 30 year amortization for fha and conventional loans: Code: function calc(){
var alrt="";
if (document.getElementById("down").value==""){
alrt+="Down Payment\n";
}
if (!document.getElementById("con").checked && !document.getElementById("fha").checked){
alrt+="Loan Type";
}
if (alrt!=""){
alert("You Must Fill Out the Following Fields:\n"+alrt);
}
else {
doAmb();
}
}
function doAmb(){
var pur=purchasePrice;
var down=eval(document.getElementById("down").value);
if (document.getElementById("type").selectedIndex==1){
downPay=down*.01;
downPay=downPay*pur;
}
else {
downPay=down;
}
var pay=pur-downPay;
if (document.getElementById("fha").checked){
pay=pay*(1.0225);
}
amt=getPayment(pay,360,interestRate);
writeData(pur,downPay,amt);
}
function getPayment(a,n,p) {
var acc=0;
var base = 1 + p/1200;
for (i=1;i<=n;i++)
{ acc += Math.pow(base,-i); }
return a/acc;
}
function writeData(pp,dp,mp){
document.getElementById("purc").innerHTML=Math.round(pp*100)/100;
document.getElementById("mon").innerHTML=Math.round(mp*100)/100;
document.getElementById("downP").innerHTML=Math.round(dp*100)/100+"
("+(Math.round(((dp/pp)*100)*100)/100)+"%)";
document.getElementById("loan").innerHTML=Math.round((pp-dp)*100)/100;
document.getElementById("inter").innerHTML=interestRate;
document.getElementById("ins").innerHTML=insurance;
document.getElementById("tax").innerHTML=tax;
document.getElementById("tot").innerHTML=Math.round((tax+insurance+mp)*100)/100;
document.getElementById("sptype").innerHTML=((document.getElementById("con").checked)?"Conventional":
"FHA");
document.getElementById("inputArea").style.display="none";
document.getElementById("outputArea").style.display="block";
}
function showIn(){
document.getElementById("cover").style.display="block";
document.getElementById("inputArea").style.display="block";
}
It works 100% perfectly in Firefox, but in Internet Explorer, it won't do anything. Also, I know there may be some missing variables, those are in a separate JS file. Edit: Also, just discovered that it works fine when used inline, but loaded from an external file, it returns an "Invalid Character" error. is there any way to fix the position of a draggable div in a table which is having fixed width and height??
Hello there guys! Thanks for taking time to view this thread. It's appriciated! I found a really nice menu (Javascript, JQuery) im not so high tech on this myself, and not the best coder either but whenever I use this menu it gives the login box on the website an error, it doesn't let people login.. I've tried to localize the error myself, but I just dont know how to fix it, I think the issue is that the site system i use doesn't support these type of scripts which gives the login errors! I'm currently using a free website system, which allows you to customize anything you want called "uCoz" The menu i used was: http://www.dynamicdrive.com/dynamici...enu-glossy.htm And I think it's the jquery that gives the login box errors.. I'm thankfull for answers if anyone knows Hello everyone. I have a a html page that is used as a login page. I know it is not secure but this is just for learning purposes, I'm not using it for anything important. My problem is that when I put in the correct login all that happens is the page just clears the text boxes as if you were starting over. I am trying to get it to go to register.html which is located in the same directory as the login page. Help with what I'm doing wrong would be greatly appreciated. Here is the code: Code: <html>
<head>
<title>Login Page</title>
</head>
<body>
<script type = "text/javascript">
var count = 2;
function validate() {
var un = document.myform.username.value;
var pw = document.myform.pword.value;
var valid = false;
var unArray = ["Philip", "George", "Sarah", "Michael"]; // as many as you like - no comma after final entry
var pwArray = ["Password1", "Password2", "Password3", "Password4"]; // the corresponding passwords;
for (var i=0; i <unArray.length; i++) {
if ((un == unArray[i]) && (pw == pwArray[i])) {
valid = true;
break;
}
}
if (valid) {
alert ("Login was successful");
window.location = "register.html";
return false;
}
var t = " tries";
if (count == 1) {t = " try"}
if (count >= 1) {
alert ("Invalid username and/or password. You have " + count + t + " left.");
document.myform.username.value = "";
document.myform.pword.value = "";
setTimeout("document.myform.username.focus()", 25);
setTimeout("document.myform.username.select()", 25);
count --;
}
else {
alert ("Still incorrect! You have no more tries left!");
document.myform.username.value = "No more tries allowed!";
document.myform.pword.value = "";
document.myform.username.disabled = true;
document.myform.pword.disabled = true;
return false;
}
}
</script>
<form>
<table border ="5">
<tr>
<th colspan="2">Login</th>
</tr>
<tr>
<td>Username:</td>
<td><input type="text" name="username" /></td>
</tr>
<tr>
<td>Password:</td>
<td><input type="password" name="pword" /></td>
</tr>
<tr>
<th colspan="2"><input type="Submit" value="Login" name="Submit" onClick="validate()" /><input type="Reset" value="Reset" /></th>
</tr>
</table>
<p>
<a href="register.html">New users click here to register</a>
</p>
</form></body></html>
Hi, I am a small problem with the combo boxes in my web page.I have created a web search portal for travelling in that i have used combo boxes for selecting the no.of.passengers (Adults, Childs & Infants) along with the ages of the children.Take for example i have a hotel search page in that i have used combo box to select the no.of.rooms. And i have kept the same concept in selection of passengers too(i.e., when u select Room count as '2' there will two rows displayed separately for choosing adults & child) and when u choose child as '1' another combo box will appear to select for 1 child this is unique for each rooms. Now i can able to do the first part clearly that is when select room count the rows are displaying as per the no. But when i select for child the age combo box is coming same for all the rooms and not as unique (separate) for each room. Can anyone help me to fix this problem! Thanks, I've ran the entire code through a javascript debugger a few times and I believe I weeded out the obvious errors. Also I believe I fixed some of the more hidden errors that one can't find with even the best debuggers.. Still it doesn't perform like it should? I found other scripts that do the same thing, but it defeats the purpose of me fixing it if I just write up a new code, even if it's easier. What make it hard for me to digest is it is somewhat complex compared to other codes that do the exact same thing. Any help? Also attached a zip file for those who want to see it externally.. Code section Code: <script type="text/javascript">
/* <![CDATA[ */
var sortItems = 1;
function move(sourceList,targetList) {
for(var i=0; i<sourceList.options.length; i++) {
if(sourceList.options[i].selected && sourceList.options[i].value != "") {
var no = new Option();
no.value = sourceList.options[i].value;
no.text = sourceList.options[i].text;
targetList.options[targetList.options.length] = yes;
sourceList.options[i].value = "";
sourceList.options[i].text = "";
}
}
moveUp(sourceList);
if (sortItems)
doSort(targetList);
}
function moveUp(curOptionList) {
for(var i=0; i<curOptionList.options.length; i++) {
if(curOptionList.options[i].value == "") {
for(var j=i; j<curOptionList.options.length-1; j++) {
curOptionList.options[j].value = curOptionList.options[j+1].value;
curOptionList.options[j].text = curOptionList.options[j+1].text;
}
var curLine = 0;
break;
}
}
if(curLine < curOptionList.options.length) {
curOptionList.options.length -= 1;
moveUp(curOptionList);
}
}
function doSort(curOptionList) {
var newOptions = new Array();
var tempOptions = new Object();
for(var i=0; i<curOptionList.options.length; i++) {
newoptions[0] = curOptionList.options[0];
}
for(var x=0; x<newOptions.length-1; x++) {
for(var y=(x+1); y<newOptions.length; y++) {
if(newOptions[x].text > newOptions[y].text) {
tempOptions = newOptions[x].text;
newOptions[x].text = newOptions[y].text;
newOptions[y].text = tempOptions;
tempOptions = newOptions[x].value;
newOptions[x].value = newOptions[y].value;
newOptions[y].value = tempOptions;
}
}
}
for(var i=0; i<curOptionList.options.length; i++) {
curOptionList.options[i].value = newoptions[i].value;
curOptionList.options[i].text = newoptions[i].text;
}
}
/* ]]> */
</script>
Form section Code: <body> <form action="" method="get" enctype="application/x-www-form-urlencoded"> <table border="0"> <tr> <td><select multiple="multiple" size="5" name="list1"> <option value="11">iPod Nano</option> <option value="12">iPod Shuffle</option> <option value="13">iPod Classic</option> </select></td> <td> <input type="button" value=" ›› " onclick="move(list1,list2)" name="B1" /> <br /> <input type="button" value=" ‹‹ " onclick="move(list2,list1)" name="B2" /> </td> <td><select multiple="multiple" size="5" name="list2"> <option value="21">MacBook</option> <option value="22">MacBook Pro</option> <option value="23">MacBook Air</option> </select></td> </tr> </table> </form> </body> </html> Code: <script type="text/javascript">
var aURL = "http://xmegatop100.com/";
if (aURL == http://xmegatop100.com/)
{
document.write("<p style="text-align: right;">
<a href="{$list_url}/index.php">1-50</a> | <a href="{$list_url}/index.php?start=51">50-100</a> | <a href="{$list_url}/index.php?start=101">100-150</a> | <a href="{$list_url}/index.php?start=151">150-200</a></p>
<br><br>
");
}
else
{
document.write("<p style="text-align: right;">
<a href="{$list_url}/index.php?cat={$category_url}&start=1">1-50</a> | <a href="{$list_url}/index.php?cat={$category_url}&start=51">50-100</a> | <a href="{$list_url}/index.php?cat={$category_url}&start=101">100-150</a> | <a href="{$list_url}/index.php?cat={$category_url}&start=151">150-200</a></p>
<br><br>
");
}
</script>
What im trying to do is if i have url as http://mysite.com then read1 code , if my site has http://mysite.com/index.php?cat=~~~~ Then reads the else part.. am i doing something wrong? this doesnt work.. Hello i have problem is i have penny auction script and i try to add auction and it show on indexpage assume 05-05-2011 but when the time hit 00.00 so date become to 6 and back to 5 in the morning maybe 12 hour and i try to change var.match round to var math.floor date become to 4 before midnight 2 minute and back to 5 when the time hit midnight again...so if this day is 5 and before midnight it will not become to 4 but when midnight come it will become to 6...so i dont know when item can end then this is code if someone can sort it out function calc_counter_from_time22(diff) { if (diff > 0) { hours=Math.floor(diff / 3600) minutes=Math.floor((diff / 3600 - hours) * 60) seconds=Math.round((((diff / 3600 - hours) * 60) - minutes) * 60) } else { hours = 0; minutes = 0; seconds = 0; } if(diff < 86400){ return twodigit(hours) + ":" + twodigit(minutes) + ":" + twodigit(seconds); } else{ var Tday = Math.floor(diff / (60 * 60 * 24)); var addDay = Tday; var d = new Date(); d.setDate(d.getDate()+addDay); mkMonth=d.getMonth()+1; mkMonth=new String(mkMonth); if(mkMonth.length==1){ mkMonth="0"+mkMonth; } mkDay=d.getDate(); mkDay=new String(mkDay); if(mkDay.length==1){ mkDay="0"+mkDay; } mkYear=d.getFullYear(); return mkDay+"-"+mkMonth+"-"+mkYear; } |
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