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JavaScript - Cant Call Function On Change Event
Hello im trying to make a drop down for my store, so that onchange the price of the option is displayed and my paypal buttons variables are changed.
I cant get the "total" function to call when the selection of the drop down is changed. please help iv'e been looking around for a week and still havent fixed it. My event handler sets on load <body onload="x.onchange=function(){total();}"> heres my script Code: <script type="text-JavaScript">
"use strict";
/*document.getelementbyid("ddm").onchange = total;*/
var price;
var title;
var x = document.getelementbyid("ddm");
var size_prices= new Array();
size_prices["cards"]=18;
size_prices["5x7sm"]=20;
size_prices["5x7dm"]=25;
size_prices["8x10sm"]=30;
size_prices["8x10dm"]=35;
size_prices["16x20sm"]=45;
size_prices["16x20dm"]=50;
function total() {
y = size_prices[x.value];
document.getelementbyid("total").innerhtml = "$" + y + ".00";
title = "image title" + (x.value);
document.getelementbyid("title").setAttribute("value", title);
document.getelementbyid("price").setAttribute("value", y);
}
function verify() {
}
</script>
here is the code for the select and the paypal button Code: <form action=""> <select name="sizes" id="ddm"> <option value="_">Please chose a size</option> <option value="cards">cards</option> <option value="5x7sm">5x7 single mat</option> <option value="5x7dm">5x7 double mat</option> </select> </form> Code: <form target="paypal" action="https://www.paypal.com/cgi-bin/webscr" method="post" onsubmit="verify()"> <input type="hidden" name="business" value="kin@kinskards.tcom" /> <input type="hidden" name="cmd" value="_cart" /> <input type="hidden" name="add" value="1" /> <input type="hidden" id="title" name="item_name" value="Candle" /> <input type="hidden" id="price" name="amount" value="3.95" /> <input type="hidden" name="currency_code" value="USD" /> <input type="image" name="submit" src="https://www.paypal.com/en_US/i/btn/btn_cart_LG.gif" alt="paypal" /> <img alt="" border="0" width="1" height="1" src="https://www.paypal.com/en_US/i/scr/pixel.gif" /> </form> Similar TutorialsHi, Which javascript event should be used to call logout on window close and url change. I want to call logout function on window close and URL change on my application. I am calling logout functionon on <body onunload="doLogout();">, but onunload event is also called when refreshing the page. is there any specific event for Windoe close and URL change. can anyone resolve this issue. Regrads, Abha Hello, Is it possible to set an html element's (created through HTML DOM's createElement() method) 'onclick' attribute's value to a Javascript function which requires a parameter, passing a variable to it at the same time? I have the following Javascript code: Code: var parentDiv = document.getElementById("subscribers");
var stubSpan = document.createElement("span");
stubSpan.id = "opentok_subscriber_" + stream.streamId;
stubSpan.onclick = showStreamInFullScreenMode(stream);
parentDiv.appendChild(stubSpan);
'stream' in the bolded line is a parameter variable of the function that the above code is in, and I'm trying to pass it to another function using an onclick event. Can this be done, or am I crazy to be even trying to do this? Thanks in advance. I'm trying to call a javascript function from within my swf and I'm having a couple of problems which are confussing me somewhat. I'm using this to call the function from flash: Code: ExternalInterface.call("pgcover");
I know that this is calling the function as I have set it trigger an alert action and this comes up properly. But I don't want the function to trigger an alert, this is just for testing purposes. I instead want it to change the styling on a div. I have set up a test page where I have asigned the function to a button and this works, the div display changes from block to none. When I get the swf to call the function setup to do the same thing, nothing happens. Code: function pgcover()
{
document.getElementById("unlayout").style.display= "none";
}
My swf is embedded in the html page that the javascript is on, I have checked all code and have rulled out spelling mistakes etc. Any help with this would be amazing as it is driving me crazy. Basically I want to have a different background image for every time of the day. The function by itself works okay with onclick or onload placed in body. Code: function changesky()
{
document.getElementById("sky").style.background="url(back_morning.jpg) repeat-x";
}
What I want to do is have my background change in addition to a message. So instead of just "Good Morning" text I also want the background to change. Code: if (time>=4 && time<12)
{
document.write ("<p>Good Morning!</p>");
document.getElementById("sky").style.background="url(back_morning.jpg) repeat-x";
}
Tried this, but it didn't work so what's the format for calling a function inside of an if statement? Or what other method should I use to do this? For the sample code: Code: <form name=form>
<ul>
<li><input type="text" onkeyUp="calc1();" name=x ></li>
<li><input type="text" onkeyUp="calc2();" name=y ></li>
</ul>
</form>
<script>
function calc1() {
document.form.y.value = (10 * document.form.x.value).toPrecision(5);
}
function calc2() {
document.form.x.value = (0.1 * document.form.y.value).toPrecision(5);
}
</script>
How can I use a checkbox to : (1) Upon check, change the current values to toExponential(5) format (2) Use a different script and/or function that would then calculate with toExponential(5) [as opposed to the hard coded toPrecision(5) in the current functions. (3) Upon unchecking, the result should should go back to Precision and change the function and/or script back to the original. if it is done like this: Code: anElement.onclick=handleIt;
function handleIt()
{ this. ... //'this' refer to the anElement
}
However, if you attach an event, quirk happens: Code: anElement.attachEvent("onclick",handleIt);
// not sure if anElement.addEventListener("click",handleIt,false) works well
function handleIt()
{ this. ... //'this' refer to an empty object ???????
}
why 'this' doesn't refer to the current target? anyone can help? I was working on a tutorial for some ajax uploading stuff and I ran across a new function syntax I don't recognize. I am not a Javascript pro, but I am not a newbie either. here is the code I am working on: Code: function handleFileSelect(e){
var files = e.target.files;
var output = [];
for(var i=0,f;f=files[i];i++){
if(f.type.match('image.*')){
var reader = new FileReader();
reader.onload = (function(theFile){
return function(e){
var span = document.createElement('span');
span.innerHTML = ['<img class="thumb" src="',e.target.result,'" title="',theFile.nbame,'" />'].join('');
document.getElementById('list').insertBefore(span,null);
};
})(f);
reader.readAsDataURL(f);
}
}
document.getElementById('list').innerHTML = '<ul>'+output.join('')+'</ul>';
}
document.getElementById('files').addEventListener('change',handleFileSelect,false);
To be a little more clear, the code in question is that is the very middle. The syntax I don't understand is: Code: class.event = (function(arguments){
//stuff you put in a function...
})(more Arguments?);
I tried to customize a simple one to learn for myself and I wrote this: Code: var a = 'A';
var b = 'B';
test = (function(t){
alert(t);
alert(b);
})(b);
test(a);
The browser would alert 'B' and that's it. The console would tell me that 'test is not a function.' OK, so I am confused. The topmost code works. What I am wondering is what the syntax is called for creating a function (or event listener?) that way, and how it works. Although if I new what it was called I could just google how it works. Hi, I am hoping I just need to be pointed in the right direction with this. I have Page1. When Page1 body onloads it uses Ajax to call PartA Within PartA I have a message board so members can write messages which will be sent to my database in PartA[1] and immediately posted for view on to PartA[2]. As I want to have my request to the server updating regularly I want to have PartA[2] on a timed loop to refresh - I do not need the content of PartA[1] to refresh. So the order of events would look like this: Page1 | onload call | v PartA / \ V V PartA[1] PartA[2] (loads once) (constantly refreshes) What I am not sure about is that I have <body> and <head> attributes in Page1 only. I have already used my body onload to call PartA (and can't use it to call PartA[2] before PartA has loaded anyway). I do not want the user to have to click a button or do anything to call up PartA[2]. So my question is how would I get PartA[2] to automatically load within PartA? I hope I have made this clear, but if I haven't let me know and I will try again. <p> <script type="text/javascript">// <![CDATA[ var metrics = { "mm" : 1, "cm" : 10, "m" : 1000, "inch" : 25.4, "foot" : 304.8 }; function convert(num, dec){ var val = document.getElementById("fromVal").value; if(isNaN(val)){ return } function roundNumber(num, dec) { var result = Math.round( Math.round( num * Math.pow( 10, dec + 1 ) ) / Math.pow( 10, 1 ) ) / Math.pow(10,dec); return result; } document.getElementById("toVal").value = val * metrics[document.getElementById("fromSystem").value]/ metrics[document.getElementById("toSystem").value]; } var interval = null; function watchChanges(){ interval == null ? setInterval("convert()", 500) : clearInterval(interval); } // ]]></script> </p> <table> <tbody> <tr> <td><input id="fromVal" style="width: 100px;" onfocus="watchChanges()" onblur="watchChanges()" type="text" /><select id="fromSystem" onchange="convert()"> <option value="mm">millimeters</option> <option selected="selected" value="cm">centimeters</option> <option value="m">meters</option> <option value="foot">feet</option> <option value="inch">inches</option> </select></td> </tr> <tr> <td colspan="1" align="center">=</td> </tr> <tr> <td><input id="toVal" style="width: 100px;" type="text" disabled="disabled" /><select id="toSystem" onchange="convert()"> <option value="mm">millimeters</option> <option value="cm">centimeters</option> <option value="m">meters</option> <option selected="selected" value="foot">feet</option> <option value="inch">inches</option> </select></td> i keep getting error Call to undefined function codeandurl() below is my code PHP Code: <?php $value= strip_tags(get_field('link',$post)); $resultid=get_field('resultid',$post); codeandurl($resultid,$value); ?> <div id="result"></div> <script type="text/javascript"> function codeandurl(resultid,url){ $( "#result" ).text(resultid); $( "#result" ).dialog({ modal: true, buttons: { Ok: function() { $( this ).dialog( "close" ); } } }); window.open(url); return false; } </script> Code: <html>
<head>
<title>TESTING</title>
<script type="text/javascript">
<!--
document.write("<input type='submit' value='submit' onclick='func()'>");
function func()
{
document.write("<input type='submit' value='New Button' onclick='func()'>");
window.alert("THIS");
}
-->
</script>
</head>
<body>
<!--input type="button" value="Read" onclick="ReadFiles()"-->
</body>
</html>
This is a very basic version of what I am trying to do. I have a dynamic list which is set in a table. When clicked, a function is run to set up a new list.. The reason I explain that, is that I need to keep it dynamic. Now for the problem: When I run this page, I have the button made right away, then when clicked it creates the new button. The new button should also run the function to create the new button again, but when I click it, I only receive "error on page". I don't know if there is a better way to go about this, but as for this route, I am stuck. Any help is greatly appreciated! -Shane I'm trying to "progressively enhance" one of my surveys using javascript. Basically, I have rating scales that make use of radio buttons as each point on the scale. Each radio button occupies its own cell in a table. I wrote some functions that will highlight cells on mouseover in a color corresponding to its position on the scale (e.g. the lowest point is red, the midpoint is yellow, the highest point is green). When a radio button is clicked, the background of the button's cell and preceding cells in the same row will be colored accordingly. The functions are working well in FireFox and Chrome (I just have to add a few lines using the addEvent function to make it compatible with IE). The effect looks a lot nicer when I add a function that makes the visibility of the radio buttons hidden. However, I want to make sure that there is a fallback option in case the functions that color the cells don't work for whatever reason. I would not want the radio buttons hidden in this case. Is there a method whereby I can call the "hideRadiobuttons" function only if the other functions are successfully executed? I'm very inexperienced with Javascript, but want to use the onclick event to change an image to text. I'm working on a directory type website and want users to have to click on the image of a telephone in order to reveal the telephone number they are looking for. how do i do this? Also is there a way of tracking how many clicks each person gets? I'd really appreciate any help you guys can give me on this Hi, I am looking for the equivalent for the following Internet Explorer code for Firefox: Code: z=event.srcElement; z.style.pixelLeft = 500px; Must be something like: Code: function move(e) {
z=e.target;
z.style.left .....
maybe. This is to assign a new left position to an Element. Any hints welcome ?! Thank you for your help ! Hi all.This is part of my code which I am using to edit the record from database.Initially the input boxes show the values from database and if any one of the value is changed, I want to reflect the change according to the changes made in the fields.The code works fine but if I change values in qty,rate or amount, the other values are not changing.Can experts over here tell me why?Here is my code: Code:
<html>
<head>
<script type="text/javascript">
function tot() {
var d=document.getElementById("total").value;
var st=Number(d);
var e=document.getElementById("vat_amt").value;
var tx=Number(e);
var f=document.getElementById("cash_discount").value;
var ad=Number(f);
var g=document.getElementById("vat").value;
var vat=Number(g);
var h=(st+tx)-ad;
document.getElementById("amount").value = Math.ceil(h);
var z=vat+100;
var y=(st*100)/z;
var i=st-y;
var result=Math.round(i*100)/100; //returns 28.45
document.getElementById("vat_amt").value =result;
}
var total = 0;
function getValues() {
var qty = 0;
var rate = 0;
var obj = document.getElementsByTagName("input");
for(var i=0; i<obj.length; i++){
if(obj[i].name == "qty[]"){var qty = obj[i].value;}
if(obj[i].name == "rate[]"){var rate = obj[i].value;}
if(obj[i].name == "amt[]"){
if(qty > 0 && rate > 0){obj[i].value = qty*rate;total+=(obj[i].value*1);}
else{obj[i].value = 0;total+=(obj[i].value*1);}
}
}
document.getElementById("total").value = total*1;
total=0;
}
</script>
</head>
<body>
<table width="23%" cellpadding="0" cellspacing="0" class="normal-text" border="0" style="margin-top:0px; padding-top:0px; margin-bottom:0px; padding-bottom:0px;">
<tr>
<td>Qty</td>
<td>Rate</td>
<td>Amount</td>
</tr>
<tr>
<td class="forhead"><input type="text" name="qty[]" onkeyup="getValues()" style="width:120px;" value="<?PHP echo "$row3[qty]" ?>" class="text medium"></td>
<td class="forhead"><input type="text" name="rate[]" onKeyUp="getValues()" style="width:120px;" value="<?PHP echo "$row3[rate]" ?>" class="text medium"></td>
<td class="forhead"><input type="text" name="amt[]" style="width:120px;"
onKeyUp="getValues()" class="text medium" value="<?PHP echo "$row3[amt]" ?>"></td>
</tr>
<tr>
<td class="dt" colspan="2">Sub Total:</td>
<td class="forhead"><input type="text" id="total" name="total" style="width:120px;" value="<?PHP echo "$row[total]" ?>" class="text medium"></td>
</tr>
<tr>
<td class="dt" colspan="2">Vat:</td>
<td class="forhead"><?PHP
$query5=mysql_query("SELECT * FROM vat");
echo "<select name='vat' id='vat' style='width:120px; border: 1px solid #BFBFBF;' onChange='tot()'>";
echo "<option value='0'>
Select</option>";
while($row5=mysql_fetch_array($query5))
{?>
<option value= <?PHP echo $row5[vat]; ?> <?PHP echo($row5[vat]==$row[vat])?'selected':''?>> <?PHP echo $row5[vat]; ?> </option>
<?PHP }
echo "</select>";
?></td>
</tr>
<tr>
<td class="dt" colspan="2">Vat Amt :</td>
<td class="forhead"><input type="text" id="vat_amt" name="vat_amt" style="width:120px;" value="<?PHP echo "$row[vat_amt]" ?>" class="text medium" onKeyUp="tot()"></td>
</tr>
<tr>
<td class="dt" colspan="2">Cash Discount :</td>
<td class="forhead"><input type="text" id="cash_discount" name="cash_discount" style="width:120px;" value="<?PHP echo "$row[cash_discount]" ?>" class="text medium" onKeyUp="tot()"></td>
</tr>
<tr>
<td class="dt" colspan="2">Total :</td>
<td class="forhead"><input type="text" name="amount" id="amount" style="width:120px;" class="text medium" onKeyUp="tot()" value="<?PHP echo "$row[amount]" ?>"></td>
</tr>
</table>
</body>
</html>
Hello, if in a webpage is included a javascript file (for example code.js) can I from my browser call a function contained in code.js and will it works correctly? I'm not meaning that the function is called in the page with or without a link to click, but it is only in code.js! Thank you! I'm trying to implement this 'ajax' script, however i'm getting the following error: function expected line 25. And I'm not the only person who is getting this error message :S How can the code be altered so it will work? Also the script isn't executed when I change onclick in onload :S How come and how can I change it so that it will be executed on launch? http://chriscook.me/web-development/...icking-a-link/ Hello. Started my massive JavaScript career just yesterday and the forums I frequent still lack a proper BB-code hide-tag, so I figured I'd try make it in JavaScript, since HTML is allowed on there. This is what I did: Code: <script type="text/javascript">
function show() {
document.getElementById('silHideTextTag').innerHTML='Hidden text!!';
document.getElementById('silHideTextBtn').value='Hide';
document.getElementById('silHideTextBtn').onclick='hide()';
}
function hide() {
document.getElementById('silHideTextTag').innerHTML=' ';
document.getElementById('silHideTextBtn').value='Show';
document.getElementById('silHideTextBtn').onclick='show()';
}
</script>
<input type='button' id='silHideTextBtn' onclick='show()' value='Show'/>
<div id='silHideTextTag'> </div>
The button labelled "Show" appears fine, when I click it it becomes "Hide" and the text "Hidden text!!" is shown. However, when I click the button again, nothing happens at all. I don't quite understand where the problem is. Thanks in advance for any clues. Best regards, Zyl My problem is that I am trying to call an function within an SWF. Now, I already know how to setup my SWF and that isn't the problem. The problem is that when I try to call the function using Javascript, I am told that the function doesn't exist. I'll show you the code right here. Code: function AudioPlayerEmbed( e )
{
if ( e.success )
{
e.ref.LoadAudio( 'http://therevolve.com/upload/userfiles/Music/Alec_Smith1.mp3' );
}
}
swfobject.embedSWF("player/MP3Player.swf", "flash", "300", "90", "9.0.0", "player/expressInstall.swf", null, null, null, AudioPlayerEmbed );
HOWEVER, when I put some alert before the call, it happens to work. What is going on? Code: function AudioPlayerEmbed( e )
{
alert("A");
if ( e.success )
{
e.ref.LoadAudio( 'http://therevolve.com/upload/userfiles/Music/Alec_Smith1.mp3' );
}
}
swfobject.embedSWF("player/MP3Player.swf", "flash", "300", "90", "9.0.0", "player/expressInstall.swf", null, null, null, AudioPlayerEmbed );
Here is a live example. Any help would be appreciated. If you need more information, I can provide it. The Javascript function change() in not getting called by onClick event of button Click Me ,JavaScript array size has been created in PHP Code: <html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<script type="text/javascript" language="javascript">
function change()
{
alert(size[1][0]);
}
</script>
</head>
<body>
<script language="javascript">
var size = new Array();
var = count;
for (count = 0; count < 5; count++)
size[count] = new Array();
size[0][0] = 600;
size[0][1] = 400;
size[1][0] = 300;
size[1][1] = 400;
size[2][0] = 300;
size[2][1] = 400;
size[3][0] = 600;
size[3][1] = 400;
size[4][0] = 300;
size[4][1] = 400;
</script>
<input type="button" value="Click Me" onClick="change()"/>
</body>
</html>
Anything wrong with my coding,any kind support will be apreciated. Thanks, Srinivas. |
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