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JavaScript - Generate Javascript Errors On Purpose
I would like to remove some hosting imposed google ads on my phpbb board.
Currently I accomplish this by deleting via javascript all the banners divs when the page is loaded. But unfortunately in that way advertisements are quickly displayed before disappearing. Now I am thinking about a different (neater) approach to my problem: maybe I might write some javascript code which interferes with the one injected by google thus generating the inability to show those annoying divs... Any idea? Similar TutorialsHi All, i want to achieve an effect like the following, please help 1. i want to get the current time, possibility no from client computer ( sometimes their time is wrong)? i dont know whether can achieve but if cannot, then never mind, just get from client computer. 2. for example now is 1:25 am, i want to generate dynamically every half an hour timing from 2 am(round up) till for example 11 am something like <select> <option>2:00</option> <option>2:30</option> ................ <option>11:00</option> </select> for me this is a bit complicated, anybody can help me? <option>3:00</option> ok so heres where I stand, I don't know too much about javascript. Just enough to get me by. I am a PHP developer, I know how to do this in PHP but the client insists on doing it through javascript. Basically there are 3 different form values that determine the Premium Death Benefit Ratio. This is the formula the client wants: Premium to Death Benefit Ratio % (Created by formula = Annual (Level) Premium Amount (Divided by) Death Benefit Amount (equals a percentage) That percentage multiplied by Life Expectancy The 3 form values in the formula would be Annual Premium Amount (fypremium), Death Benefit Amount (dbp), Life Expectancy (average_le) I was messing around with javascript trying to figure it out and I have gotten no where since I am not used to writing formulas in JS. Anyways here is what I have so far: Code: function calculateLE(inputFieldId1, inputFieldId2, inputFieldId3, outputFieldId){
var DBR;
var input = document.getElementById(inputFieldId).value;
APA = document.getElementById(fypremium).value;
DBA = document.getElementById(dbp).value;
LE = document.getElementById(average_le).value;
formula = document.getElementById(fypremium).value / document.getElementById(dbp).value = formula3;
formula2 = document.getElementById(average_le).value * formula3;
if { APA = "" } {
document.getElementById(outputFieldId).value = "Error getting Annual Premium Amount";
}
else if { DBA = "" } {
document.getElementById(outputFieldId).value = "Error getting Death Benefit Amount";
}
else if { LE = "" } {
document.getElementById(outputFieldId).value = "Error getting Life Expectancy";
}
else {
document.getElementById(outputFieldId).value = formula3;
}
}
Now I honestly have no clue if I am on the right track but what i've found on the net hasnt really pointed me in the right direction Here is the form values. Code: <input type="text" name="fypremium" id="fypremium" onblur="calculateLE('fypremium', 'dbp', 'average_le', 'premium_dbr')">
<input type="text" name="dbp" id="dbp" onblur="calculateLE('fypremium', 'dbp', 'average_le', 'premium_dbr')">
<input type="text" name="average_le" id="average_le" onblur="calculateLE('fypremium', 'dbp', 'average_le', 'premium_dbr')">
In a nut shell the values for the 3 inputs stated above will determine premium_dbr's value. fypremium / dbp = percentage; average_le * percentage = DBR (death benefit ratio); If someone could point me in the right direction to finishing this id be very greatful. Hello, I'm a complete javascript beginner so sorry if I'm just being stupid I wanted to know if it's possible for me to add a picture (as in a .png file) to a page by clicking on something which would then make an image appear on the screen (which I would then want to be able to drag and move but I made a different thread for that question) I hope this explanation made sense Thank you for your time Hi, I have a problem. please help me in this regard. I have a combobox which contain numeric values from 1-7. i want to generate a table with 2 rows and 4 columns through javascript. Means when a user select numeric value like '3' from a combo box then a page generates '3' tables without refreshing a page. And if a user selects '4' from a combobox then a script generates 4 tables with 2 rows and 4 columns and so on. kindly guide me that how can i mkae this javascript. plz help As a homework assignment, we are being asked to generate a table of images with at least 2 rows and 3 columns from an external javascript function. I've been trying to find some kind of javascript reference for this and I can't. I don't want someone to do it for me, but if I could get a basic example that would be great.
I've done a bit of searching and I can't find the answer to my question. I'm working on a website for my business. I have some basic knowledge of coding but I'm mostly a code cobbler. I find various pieces and put it together and hope it works so take it easy on me. I have some code to display products on my site. It works fine. We just have a lot of products and for me to add each one by hand was getting ridiculous. I finally had the bright idea to use Javascript to generate the code for me and then copy it back into my actual HTML page. Last night I wrote the code below. It works perfectly except I have to constantly "View Source" in order to get the code. I was hoping to cut down on a step or two and have the code go into a TextArea. From there I can just select it and copy it into the HTML file. It should make things a little quicker and most importantly easier. Maybe after that I'll try to figure out how to write function to select everything in the TextArea and copy it to my clipboard. That would make things even faster. Any help? 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=iso-8859-1" />
<title>Untitled Document</title>
<SCRIPT LANGUAGE="JavaScript">
function calc (form) {
var images = form.images.value;
var imagesArray = images.split("\n");
var linebreak = "<br />";
var i=0;
var j=0;
var a=0;
while(i < imagesArray.length)
{
if(j==0)
{
document.write (" <!-- -------------------------------------------- -->\n");
document.write (" <div id=\"cols3-top\"></div>\n");
document.write (" <div id=\"cols3\" class=\"box\">\n");
}
a++;
if(j/2!=1)
{
if(a==imagesArray.length)
{
document.write ("\n <!-- ---------------- -->\n\n");
document.write (" <div class=\"col last\">\n");
document.write (" <h3>Header</h3>\n");
document.write (" <p class=\"nom t-center\">\n");
document.write (" <a href=\"../../product_imgs/resins/pdu/54xxxgs/" + imagesArray[i] + ".jpg\" class=\"nivoZoom center\"><img src=\"../../product_imgs/resins/pdu/54xxxgs/" + imagesArray[i] + ".jpg\" alt=\"" + imagesArray[i] +"\" height=\"200px\" /></a></p>");
document.write (" <!-- /col-text -->\n");
document.write (" <div class=\"col-itemnum\">PDU: " + imagesArray[i] + "</div>\n");
document.write (" </div>\n");
document.write (" <!-- /col -->\n");
document.write (" <hr class=\"noscreen\" />\n");
document.write (" </div>\n");
document.write (" <div id=\"cols3-bottom\"></div>\n");
document.write (" <!-- /Columns End Here -->\n\n\n");
break;
}
else
{
document.write ("\n <!-- ---------------- -->\n");
document.write (" <div class=\"col\">\n");
document.write (" <h3>Header</h3>\n");
document.write (" <p class=\"nom t-center\">\n");
document.write (" <a href=\"../../product_imgs/resins/pdu/54xxxgs/" + imagesArray[i] + ".jpg\" class=\"nivoZoom center\"><img src=\"../../product_imgs/resins/pdu/54xxxgs/" + imagesArray[i] + ".jpg\" alt=\"" + imagesArray[i] +"\" height=\"200px\" /></a></p>");
document.write (" <!-- /col-text -->\n");
document.write (" <div class=\"col-itemnum\">PDU: " + imagesArray[i] + "</div>\n");
document.write (" </div>\n");
document.write (" <!-- /col -->\n");
document.write (" <hr class=\"noscreen\" />\n");
i++;
j++;
}
}
else
{
document.write ("\n <!-- ---------------- -->\n\n");
document.write (" <div class=\"col last\">\n");
document.write (" <h3>Header</h3>\n");
document.write (" <p class=\"nom t-center\">\n");
document.write (" <a href=\"../../product_imgs/resins/pdu/54xxxgs/" + imagesArray[i] + ".jpg\" class=\"nivoZoom center\"><img src=\"../../product_imgs/resins/pdu/54xxxgs/" + imagesArray[i] + ".jpg\" alt=\"" + imagesArray[i] +"\" height=\"200px\" /></a></p>");
document.write (" <!-- /col-text -->\n");
document.write (" <div class=\"col-itemnum\">PDU: " + imagesArray[i] + "</div>\n");
document.write (" </div>\n");
document.write (" <!-- /col -->\n");
document.write (" <hr class=\"noscreen\" />\n");
document.write (" </div>\n");
document.write (" <div id=\"cols3-bottom\"></div>\n");
document.write (" <!-- /Columns End Here -->\n\n\n");
i++;
j=0;
}
}
document.close();
}
</script>
</head>
<body>
<div style="width:960px; margin:0 auto;">
<form name="myform" method="get" action="">
<textarea label="Image Names:"name="images" cols="30" rows="15" onclick="this.value=''" ></textarea>
<p>
<label>
<input type="button" name="calculate" value="Calculate" onClick="calc(this.form)"/>
</label>
</p>
</form>
</div>
</body>
</html>
I pulled this code from Google's example section to make markers on a v3 Google Maps API (I have added my own lat/long points and corresponding event listeners, of course, but this is still the spirit of the code):
Code: <script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
<script type="text/javascript">
var map;
function initialize() {
var map_center = new google.maps.LatLng(39.2,-84.479381);
var store1 = new google.maps.LatLng(39.112456,-84.574779);
var store2 = new google.maps.LatLng(39.314153,-84.261379);
var store3 = new google.maps.LatLng(39.197099,-84.667579);
var store4 = new google.maps.LatLng(39.16836,-84.479381);
var myOptions = {
zoom: 10,
center: map_center,
mapTypeId: google.maps.MapTypeId.ROADMAP
}
map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
var marker1 = new google.maps.Marker({
position: store1,
map: map,
title:"Store 1"
});
var marker2 = new google.maps.Marker({
position: store2,
map: map,
title:"Store 2"
});
var marker3 = new google.maps.Marker({
position: store3,
map: map,
title:"Store 3"
});
var marker4 = new google.maps.Marker({
position: store4,
map: map,
title:"Store 4"
});
google.maps.event.addListener(marker1, 'click', function() {
map.set_center(store1);
map.set_zoom(16);
});
google.maps.event.addListener(marker2, 'click', function() {
map.set_center(store2);
map.set_zoom(16);
});
google.maps.event.addListener(marker3, 'click', function() {
map.set_center(store3);
map.set_zoom(16);
});
google.maps.event.addListener(marker4, 'click', function() {
map.set_center(store4);
map.set_zoom(16);
});
}
</script>
This works without fail, but when I try to use a javascript array to hold my values and loop my way through the marker creation like so: Code: <script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
<script type="text/javascript">
var map;
function initialize() {
var map_center = new google.maps.LatLng(39.2,-84.479381);
var store_locations = new Array();
var temporary_stuff = new Array();
store_locations[0] = "39.112456,-84.574779";
store_locations[1] = "39.314153,-84.261379";
store_locations[2] = "39.197099,-84.667579";
store_locations[3] = "39.16836,-84.479381";
var myOptions = {
zoom: 10,
center: map_center,
mapTypeId: google.maps.MapTypeId.ROADMAP
}
map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
for(i=0;i<store_locations.length;i++){
var marker_string = "position: "+new google.maps.LatLng(store_locations[i])+", map: map, title:\"Store "+(i+1)+"\";";
temporary_stuff[i] = new google.maps.Marker(marker_string);
}
var markers = new Array();
for(i=0;i<temporary_stuff.length;i++){
var the_marker = "position: temporary_stuff[" + i + "], map: map, title:\"Store " + (i+1) + "\";";
markers[i]= new google.maps.Marker(the_marker);
}
}
</script>
I get a blank map. Here's a link to the test file: http://rowsdower.freehostia.com/map_test.php It's not throwing up any errors in Firefox's developer or in IE but there it sits, a blank map. I'm sure this isn't clean or optimized code, but it looks correct to me. I've color-coded the code above to show what "for" loops are being used to try to replace which code. Hopefully that makes this more sensible. I haven't even tried to add the listeners yet since I can't get the markers to appear. Can anyone tell me why this isn't working or point me in a more productive direction? Is there a better way already out there that I haven't noticed? all, can someone clarify what the following code does? Code: if (form_field) {
//some code
}
I work with visual basic and this does not generally work to check for null or empty fields or controls. Is that what this simple statement does? I assume that it basically checks for emptiness of a form control. Is that completely correct, or are there other factors involved as well? thanks! here is the link where the problem persist http://www.ornusweb.com/what_we_done.html I have mixed 2 scripts the light box script(lightbox.js) and scroller script(scriptaculous.js) the page only works with ie and in other browsers it opens as an image(light box wont work) the errors say 1st error> uncaught script.aculo.us requires the prototype javaScript frame work >1.4.0 scriptaculous.load (anonymous function) 2 error > uncaught typeErrorbject function object(){[native code]} has no method 'extends' (anonymous function) can some one help me solve these problem's The validator showed up these errors on my site. They are from a script, but I know very limited javascript to correct it, to me it seems to be OK. 1. Line 15, Column 23: character "<" is the first character of a delimiter but occurred as data for (var i = 0; i < d.length; ++i) { This message may appear in several cases: * You tried to include the "<" character in your page: you should escape it as "<" * You used an unescaped ampersand "&": this may be valid in some contexts, but it is recommended to use "&", which is always safe. * Another possibility is that you forgot to close quotes in a previous tag. 2. Error Line 15, Column 23: StartTag: invalid element name for (var i = 0; i < d.length; ++i) { Code: <script type="text/javascript">
window.onload = function() {
if (!NiftyCheck()) {
return;
}
Rounded("div#nifty", "#666", "#FFF", 30, 30);
}
function adjustRadius() {
d = getElementsBySelector("div.rounded");
for (var i = 0; i < d.length; ++i) {
d[i].parentNode.removeChild(d[i]);
}
var x = document.getElementById("radiusx").value;
var y = document.getElementById("radiusy").value;
Rounded("div#nifty", "#666", "#FFF", x, y);
return false;
}
</script>
Does anyone know why these errors are coming up on the WC3? I have a loop that originally printed out a day, in a table, that linked to a new page. Code: out.println("<th height=100><a href=eventPage.jsp?month="+(n+1)+"&day="+d+">" + d + "</a>");
This works fine but now I want to instead have it be a link a page thats a pop up. The code I have now is as follows Code: out.println("<th height=100><a href="eventPage.jsp?month="+(n+1)+"&day="+d"" onclick="popUp(this.href);return false"> + d + "</a>">);
and Code: <script type="text/javascript">
function popUp(URL) {
<!--
window.open(URL,'width=300,height=300');
//-->
}
</script>
I can not seem to find where I am going wrong. Any help would be appreciated. Hello, I am having trouble with a javascript length converter that I got from http://www.javascriptkit.com/script/...onverter.shtml It is working fine in dreamweaver, but when it goes live on my site, the calculations do nothing. I can see everything in the drop down menus, but when i click the "to" button, nothing happens. I got the following errors from chrome when activating any of the calculation functions. I'm wondering if anyone here can help me decipher these 1. Uncaught TypeError: Cannot read property 'from_unit' of undefined 1. convert_unitDefault.aspx:459 2. (anonymous function)Default.aspx:482 3. onchangeDefault.aspx:483 1. Default.aspx:459Uncaught TypeError: Cannot read property 'from_unit' of undefined 1. convert_unitDefault.aspx:459 2. (anonymous function)Default.aspx:496 3. onchangeDefault.aspx:497 1. Default.aspx:459Uncaught TypeError: Cannot read property 'from_unit' of undefined 1. convert_unitDefault.aspx:459 2. (anonymous function)Default.aspx:516 3. onclickDefault.aspx:517 I'm working with greasymonkey scripts. Firefox JS console would always display GM script errors, but all of the sudden it stopped doing that. Script just won't load and no errors are displayed. I didn't touch any settings, yesterday they were showing fine, today none are displayed. Would appreciate any help.
Do you log JavaScript errors on your live website? The actual errors that users experience? If you do, what tool do you use? And how is it woring out? If you don''t why not? I'm receiving the following errors: line 6 Expected an element name[xml] line 17 the input ended before all started tags were ended. last tag started was 'script'[xml] Code:
<script type="text/javascript">
var camp = xfa.resolveNodes("camp[*]");
var total = 0;
for (var i=0; i <= camp.length-1; i++) {
if (camp.item(i).isNull) {
total = total;
}
else {
total = total + 30;
}
}
this.rawValue = total;
</script>
I've got next to zero experience with javascript so not even sure what I should be looking to fix...any help is appreciated, if I need to answer something I missed, just let me know. I have created a small file where I check if the passwords entered in the code match or not, if they do not match, the button that links to the next webpage should not work(allow them to go to the next wepage). ive tried various websites to help me try and solve this but I just dodont understand what they are doing. I'm very new to programming btw here is some example code: Code: !doctypeHTML
<html>
<script>
//lets just pretend that ive already done all the .getelement by id stuff to get the code things
//suppose the person did not write anything in the form, an error will get pushed(alerted basically)
if(!form['password'].value)
error.push('Missing Password');
<form>
<label>Password<br><input type="password" name="password"></label>
<label>Confirm Password<br><input type="password" name="confirm"</label>
</form>
</html>
now how would I make the submit button not submit if there are errors? please be as simple as possible, I am new to this! For some reason i cant get this bit of code to work. You can ignore the php and html if its getting in your way. Thanks: Code: <div id="pl">
<?
if($edit == true){
?>
<script type="text/javascript">
$("#add_playlist_form").css({display:"none"});
$("#add_playlist").click(function(){
alert($("#add_playlist").html());
if($("#add_playlist").html() == "Add a Playlist >>"){
$("#add_playlist").html("Hide <<");
$("#add_playlist_form").css({display:"block"});
}
else{
$("#add_playlist").html("Add a Playlist >>");
$("#add_playlist_form").css({display:"none"});
}
});
</script>
<a href="#" id="add_playlist">Add a Playlist >></a>
<form id="add_playlist_form" method="POST" action=" ">
<input type="text" name="pl_name" class="add_playlist"/>
<textarea name="pl_dsec" maxlength="200"></textarea>
<input type="submit" name="submit_playlist" value="Add Playlist" class="submit_playlist"/>
</form>
<?
}
?>
<ul class="vList">
Validator (My CSE HTML Validator v9.0 ) reports javascript errors but program runs. There seems to be a problem with commands used twice and a missing semi-colon. Also there are problems with Firefox. Unable to reselect another image. OK with IE8. I would appreciate it if someone with better eyesight than me could give the jscript a once over for me. Thanks oin advance. Frank Culprit is here. EDITED. |
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