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JavaScript - Getelementsbyname() Question
After some severe experimentation I got to googling for an answer and stumbled upon these forums.
So my big question is, is it possible to use getElementsByName() with a variable as the parameter? And if not what is another way I can get at each element based on a variable list of names. Code: var curObjSet = document.getElementsByName(String(idStack[y])).item(0) I'm trying desperately to make my code organic and not to have to hard code field names but without this working its leaving me with out options. Thank you for any time and help provided. - Eric Similar TutorialsHi, I'm trying to use the getElementsByName method in a div tag and it's retrning an error. Can anyone suggest how to access it from a javascript function I am trying to pass two inputs one hidden one text to php using document.getelementsbyname(). The hidden input is in a php array, the text input is a user typed input. When ever I pass it to php it always pulls the first item in the array. So even if I click "View" on the 3rd item in my array it will still show the two inputs from my first item in the array. Here are my html input fields followed by java function followed by submit. How do i get it to send the proper information and not the first item in the array. Code:
<input name="imageNumber" type="hidden" value="<? echo $imageNumber; ?>.png">
<input type="text" name="imprint" value="" size="40">
<script>
function passImprint() {
imageNumber = (document.getElementsByName("imageNumber")[0].value);
imprint = (document.getElementsByName("imprint")[0].value);
urlString = "imprint.php?imprint=" +imprint + "&imageNumber=" +imageNumber; window.open(urlString,"width=640,height=295");
}
</script>
<input type="button" value="View Imprint" onClick="passImprint();">
I am trying to add a green tick or red cross to my form so that the user will know if they have filled out the form correctly before submitting it and getting told that they need to fill out this or correct that. I have added NAME to each form field and have been using this to read the content but for some reason I am unable to read what is in the field I get the error, 'undefined'. this is what code I have started on... Code: function checkValidFormInput(id, noCheck) {
if (noCheck == '') {
var idValue = document.getElementsByName(id);
if (id == 'customerName') {
alert(id);
alert(idValue.value);
if (idValue != '') {
document.getElementsByName(id + 'Img').innerHTML = '<img alt=/"/" src=/"/">';
}
}
if (id == 'customerEmail') {
if (idValue != '') {
document.getElementsByName(id + 'Img').innerHTML = '<img alt=/"/" src=/"/">';
}
}
}
}
my code is still in the early stages and is missing the other parts to place a red cross, as the moment i am working on placing the green tick. Can anyone spot what I have wrong in my code that is causing it not to read the form field. my form field is coded as so.. Code: <li class="value"> <input type="text" autocomplete="off" name="customerName" value="<?=$fullname;?>" style="width: 200px;" onChange="checkValidFormInput(this.name, '');"> <div style="float: left;" id="customerNameImg"></div><br style="clear:both"> </li> I have to update the rowid(assigned to checkbox) whenever the textbox value is updated and this needs updating value of document.getElementsByName('rf_select[]') when checkbox value matches the textbox id. There can be mutliple number of rows each with a uniqueID (checkbox value) that matches with the textboxID onload. Code :- <td align="center"><input type='checkbox' name='rf_select[]' id='rf_select' value="rowId" CHECKED border="none"/> <td align="left"><input type='text' name='policy_no' id="rowId" size='25' value="test" onBlur=handleRowId('policy_no'); /></td> <script language="javascript"> function handleRowId(){ var arr = new Array(); var rowarr = new Array(); arr = document.getElementsByName('policy_no'); rowarr = document.getElementsByName('rf_select[]'); for(var i = 0; i < arr.length; i++) { var obj = arr.item(i); //alert(obj.id + " = " + obj.value); for(var j=0; j< rowarr.length; j++){ if(rowarr[j].value == obj.id){ document.getElementsByName('rf_select')[j].value = rowarr[j].value+"#@#"+obj.value; } } } } </script> I am having problem assigning values here - document.getElementsByName('rf_select')[j].value = rowarr[j].value+"#@#"+obj.value; Any help is appreciated. I was asked to redo a menu for this site: http://www.listlabs.com/index.php It was originally an imaged based menu, but they wanted it all changed to css/html. I used quickmenu and it used JS to produce the arrows at the top of each menu item. Now to my question... I'm trying to program the menu items to stay active when on the current page. At first, it looks correct, but if you hover back over the menu, it changes back to the inactive state. Any help would be great! Thanks. hello all ive been asked to create a javascript slideshow.... and i don't really understand it that much i know a little javscript but not much........ is thier any helpful sites that i can use to teach you step by step to make a javascript slide show???? also if don't want loads of code to be used, i want the code to be clean insted of loads and loads of code what is just unessary. i will be linking the javascript file to the html file so i need to keep the code to a min LOL CHEERS Ok i have been working on this for a while now. I have to have 3 fish swim across the screen in both direction. I have tried a few things but nothing is working. Can someone please explain to me what I am doing wrong. here is my code for you guys to look at it. Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Fish tank</title>
<meta http-equiv="content-type" content="text/html; charset=iso-8859-1" />
<script type="text/javascript">
// <![CDATA[
var fishPos = new Array(3);
fishPos[0] = "fish1.gif";
fishPos[1] = "fish2.gif";
fishPos[2] = "fish3.gif";
var fillPosition = 10;
for(var i = 0; i < 50; ++i) {
horizontal[i] = fillPosition;
fillPosition += 10;
}
function fishSwim(fishNumber) {
document.getElementById("fishPos").style.left = horizontal + "px";
++fishPos[fishNumber];
if (fishPos[fishNumber] == 49)
fishPos[fishNumber] = 0;
}
function startSwimming() {
setInterval(fish1Swim, 100);
}
// ]]>
</script>
</head>
<body onload="startSwimming();">
<p><span id="fish1" style=
"position:absolute; left:10px; top:10px"><img src="fish1.gif" alt="Image of a fish" /></span></p>
<p><span id="fish2" style=
"position:absolute; left:10px; top:120px"><img src="fish3.gif" alt="Image of a fish" /></span></p>
<p><span id="fish3" style=
"position:absolute; left:10px; top:250px"><img src="fish2.gif" alt="Image of a fish" /></span></p>
</body>
</html>
I am really not understanding and in my book it only give me a page to read about the animation. I am still new to it. Thanks for looking Hi all I am doing an assigment and have gotten to the end and cannot get the unordered list to work. If I try having my </script> tag below the </ul> it does not display anything If i have it above it will only display the varible names or what ever I type between the <li> </li> tag and not the varible assigment. num1,2,3,4 being the varible name. ie. </script> <ul> <li>num1</li> I have tryed <li>+num2+</li> also tryed <li>(num3)</li> also tryed <li>'num4'</li> also tryed and does not display </ul> </head> </html> The following does not display any thing <ul> <li>num1</li> I have tryed <li>+num2+</li> also tryed <li>(num3)</li> also tryed <li>'num4'</li> also tryed </ul> </script> </head> </html> I need to get the <li></li> to display not what I type in there but the assigment of the varible name I put in there.,or the output the varible calculation produces. Hope that was easy to understand lol Any advise would be awesome, cheers Shayne Darcy. Could someone please take a look at my code? It's a simple quiz with one multiple choice question and one fill in the blank. When the user clicks on 'submit' I tried to show some kind of response with correct/incorrect images next to the question. It works with the multiple choice question, but not with the fill in the blank. How can I get the fill in the blank question to work. It always shows the answer as being wrong. Thank you. Quote: answer_list = [ ['False'], ['body','hips','knees'] // Note: No comma after final entry ]; response = []; function setAnswer(question, answer) { response[question] = answer; } function CheckAnswers() { var correct = 0; var flag, resp, answ; for (var i = 0; i < answer_list.length; i++) { flag = false; for(var j=0; j<answer_list[i].length; j++){ resp = response[i].toLowerCase(); answ = answer_list[i][j].toLowerCase(); ################################################################################################# if (response[0] == answer_list[0]) { flag = true; document.myquiz.a1c.style.backgroundImage="url('correct.gif')"; } else{ document.myquiz.a1c.style.backgroundImage = "url('incorrect.gif')"; document.myquiz.a1c.value = " ANS: False. Position the head snugly against the top bar of the frame and then bring the foot board to the infant's feet."; } if (response[1] == answer_list[1]) { flag = true; document.myquiz.a1d.style.backgroundImage="url('correct.gif')"; } else{ document.myquiz.a1d.style.backgroundImage = "url('incorrect.gif')"; } ################################################################################################### } if (flag) { correct++; } } document.writeln("You got " + correct + " of " + answer_list.length + " questions correct!"); } </SCRIPT> </HEAD> <FORM name="myquiz"> <B>1. When measuring height/length of a child who cannot securely stand, place the infant such that his or her feet are flat against the foot board.</B> <label><INPUT TYPE=radio NAME=question0 VALUE="True" onClick="setAnswer(0,this.value)">True</label> <label><INPUT TYPE=radio NAME=question0 VALUE="False" onClick="setAnswer(0,this.value)">False</label> <textarea rows="2" cols="85" name="a1c" style="background-repeat:no-repeat"></textarea> <B>2. When taking a supine length measurement, straighten the infant's <INPUT id="test" TYPE=text NAME=question1 size=10 onChange="setAnswer(1, this.value)">, <INPUT id="test" TYPE=text NAME=question1 size=10 onChange="setAnswer(1, this.value)">, and <INPUT id="test" TYPE=text NAME=question1 size=10 onChange="setAnswer(1, this.value)">.</B> <textarea rows="2" cols="85" name="a1d" style="background-repeat:no-repeat"></textarea> <INPUT TYPE="button" NAME="check" VALUE="Check Answers" onClick=CheckAnswers()> </FORM> </div> </FONT> </BODY> </HTML> Hello, i haven't understood how to find the id from buttons, links, button images to auto click yet for example, i want to CLICK HERE how can i do that? how i find the id (I Own firefox with firebug and know basic html) it will be something like javascript:document.GetElementById('id').click(); right? but just want to know how to find or create ids on sites for auto click thanks You are given a mathematical expression containing integers and the basic operations: *,+,-, /. Find the number of unique results that can be obtained by parenthesizing the expression differently. i.e., by changing the order of evaluation of the operations. Note that all operations are integer operations. For example, if the input is 2 ∗ 3 + 6/2, your output should be 4. Plzz help me with this qs......... I'm not sure if this is the correct forum or not, but here goes. I want to make a very simple XUL document. Just a simple basic window to be opened up, but, i want the XUL to Load and Render an HTML File. I'm not sure about what function(s) to call to achieve this, can anyone give me any ideas to go on? here's what i have so far use my JavaScript Function called LoadFromDisk(FileName), if the file is there or the load is sucessfull, it can be stored as a variable. And then i have a single Division in the XUL document called RenderWindow. From there i set the innerHTML of the RenderWindow to the data that was loaded from the disk. Is this the right way? thanks hi guys, l am trying to learn javascript, although certain things seem to be easy to understand, l still have plenty of questions. so l was reading some articles on w3schools and l was an interesting table about operations. http://i1087.photobucket.com/albums/...kesnosense.png if you check above's table you will see at the increment section as well decrement , you will see that in some cases the x and y dont have the same value, now l was just wondering, what is the difference between x=++y and x=y++ ? Hey! Sorry if this is a very remedial question, but I'm trying to make a table, of even and odd numbers organized in two columns (with as many rows as it takes to get through the sequence) and I'm having an issue with my code, obviously - haha. I'm still slightly new.. here is my code Code: document.write('<table>');
for (i=1; i < 50; i++) {
document.write("<tr>");
for (j = 0; j < 50; j++) {
if (j % 2==0) {
document.write('<td>' + j + '</td>');
}
else
{
document.write('<td>' + i + '</td>');
}
}
}
document.write("</tr>);
document.write("</table>");
Any help would be greatly appreciated! Hi all, I am trying to do a simple "animation" of the background color of a button. I want it to do 10 different colors in the course of 1 second. I have a loop like this (pseudo code): Code: var e = "the button element";
var c = 10;
while (c--) {
setTimeout(function(){ e.style.backgroundColor=(random color); }, (c * 100));
}
I expect that 10 instances of "setTimeout" would be created, each one timing out 0.1 seconds later than the previous one, giving me an "animation" of 10 different colors over the course of 1 second. Strangely, it doesn't work. All it does is WAIT one second, then set the background to the LAST color. What am I doing wrong? I can't see it. Thanks! -- Roger Edit: I also tried to do the loop forward instead... no difference. I would like to type something into my textbox and then press ENTER, it will execute a function. I tried onFocus, onChange and onBlur but it doesn't do what I want it to. Here's an example I use for onChange. Code: Application: <input type="text" onchange="execProg(0);"> Any comments or suggestions is greatly Hi Chaps, I have a PHP form with one input and a button. A jQuery script ('loading' animated gif) is triggered on the click of the submit button. I also have a Spry Validation field linked to the input. At the moment, if the validation is triggered, the animated gif continues and won't stop. The furthest I've managed to get with it, is to click the validation message to stop the animation, but what I'm really after is to stop the animation when the validation is visible/triggered, but I can't find a suitable Event. Code: <script type="text/javascript">
$(function() {
$("#button_download")
.click(function() {
})
.throbber();
$("#sprytextfield1")
.click(function(sprytextfield1) {
$.throbberHide();
})
});
</script>
If someone can point me in the right direction, that would be sweet. ok tell me if I wrote this properly Code: eval('windowBody' + windowCount + '.style.backgroundColor = "black";');
I'm attempting to be able to create multiple windows on my page http://opentech.durhamcollege.ca/~in...rittains/labs/ Is there a way to have functions execute sequentially, rather than additively, using setTimeout? The problem here is varying browser speeds. Say we have some functions and they're set to fire after certain intervals, to create a rhythm. If you set them this way: Code: fn1(); setTimeout('fn2()',3000); setTimeout('fn3()',5000);
and fn2() takes approx 1600ms to complete, there should be a 400ms pause before fn3(). But no two browsers are the same: the rhythm is at the mercy of browser speed. In some browsers, fn3() will fire before fn2 is finished. It sounds finicky, but it's like looking at a cut in a film: it's either smooth and not noticed, or it jars. Is there a way to execute which says: "do fn1(); when it's finished, wait 3 seconds and do fn2(); when it's finished, wait 400ms and do fn3()" ? cheers. So, I've built this navigation bar so far and I'm curious if it's even possible to achieve what I'm thinking. Currently, when you hover over each of the links they drop down (padding is increased). Now, what I'm curious in doing is if you hover over say "test1", test2-4 also drop with it but in the padding that has been created from the drop down, "test1" information shows up. Allowing the user to click or read whatever information is in there. Also, if the user would like to, they can move their mouse to test2 and everything would animate (opacity, this I can do I think) to whatever is in the test2 field, test3 doing the same and so on. I haven't had much success with this, I've created a completely separate panel before, but that didn't exactly work or I wasn't doing it correctly. Here is what I've been working on, ANY help would be appreciated! Thanks! Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript">
$(function() {
$("#nav li > a").hover(function() {
$(this).stop().animate({paddingTop: "100px"}, 100);
},
function() {
$(this).stop().animate({paddingTop: "10px"}, 200);
});
});
</script>
<style type="text/css">
#nav
{
position: absolute;
top: 0;
left: 60px;
padding: 0;
margin: 0;
list-style: none;
}
#nav li
{
display: inline;
}
#nav li a
{
float: left;
display: block;
color: #555;
text-decoration: none;
padding: 10px 30px;
background-color: #d1d1d1;
border-top: none;
}
</style>
</head>
<body>
<div id="wrap">
<ul id="nav">
<li><a href="">test1</a></li>
<li><a href="">test2</a></li>
<li><a href="">test3</a></li>
<li><a href="">test4</a></li>
</ul>
</div>
</body>
</html>
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