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JavaScript - Error: Null Or Not An Object In Javascript
Hello
I am using a timer which goes down from 2 minutes to zero when 'jsp' is called. Timer is written in javascript. I am getting an error that document.form1.timerMin.value=<%=min%> is null or not an object. Here is the code (t.jsp): <% /* Default timer */ int min = 2; int sec = 5; /* Check for timer params */ try { String timerMin = request.getParameter("timerMin"); if (timerMin==null)timerMin=""; if (timerMin != null) { min = Integer.parseInt(timerMin); } String timerSec = request.getParameter("timerSec"); if (timerSec==null)timerSec=""; if (timerSec != null) { sec = Integer.parseInt(timerSec); } } catch(Exception m) { System.out.println("generated exception..............:"+m); } %> <script language="JavaScript" type="text/javascript"> <!-- /* Initialise timer */ var min = <%=min%>; // set the minutes var sec = <%=sec%>; // set the seconds function countDown() { sec--; if (sec == -1) { sec = 59; min--; } /* Write timer state to hidden form fields */ document.form1.timerMin.value=<%=min%> document.form1.timerSec.value=<%=sec%>; time = (min<=9 ? "0" + min : min) + " min and " + (sec<=9 ? "0" + sec : sec) + " sec "; document.getElementById('theTime').innerHTML = time; SD=window.setTimeout("countDown()", 1000); if (min == 0 && sec == 0) { window.clearTimeout(SD); } } window.onload = countDown(); --> </script> <style type="text/css"> <!-- .timeClass { font-family:arial,verdana,helvetica,sans-serif; font-weight:normal; font-size:10pt; } --> </style> <table width="100%"> <tr><td width="100%" align="right"> <span id="theTime" class="timeClass"></span> </td></tr> <form method="post" name="form1" id="form1" action="t.jsp" <td width="50%" valign="middle"> <input type="hidden" name="timerMin" value="<%=min%>"> <input type="hidden" name="timerSec" value="<%=sec%>"> <div align="center"><a href="javascript:form1.submit()" onMouseOut="MM_swapImgRestore()" onMouseOver="MM_swapImage('Image3','','/lms/images/submit_0.gif',1)"><img name="Image3" border="0" src="/lms/images/submit_0.gif" width="70" height="30"></a></div> </td> </form> Looking forward for an early reply. Thanks Similar TutorialsHi I am using a custom form elements script in the link below: www_bristolstreet_co_uk/page/find_a_dealer.htm and an error for null object is appearing from this line: active = option[0].childNodes[0].nodeValue; Can anyone please help? I am a novice at Javascript but got this script working perfectly on my local machine - once I loaded it the live site it didn't work... any advice would be greatly appreciated. Hey Guys, I wondered if anyone would be kind enough to look at an issue I am having running a Javascript on IE. The script works fine in FF and Chrome but chucks up an error in all versions of IE so the Menubar does not display child pages. Here's the Error: User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729) Timestamp: Tue, 16 Aug 2011 14:45:53 UTC Message: 'lastChild' is null or not an object Line: 31 Char: 3 Code: 0 The full script is he http://www.makingtrails.com/wp-conte...ks3/js/menu.js Any help much appreciated as the author of this script is not providing any support. Thanks Jon Hi I am having trouble with a script. I cannot figure out why I get the message: error: null is null or not an object (In IE8) The site is: www.rayburns.com I have check the javascript for the navigation bar and for the rotating images and cannot see what is missing. Not sure what is not being called. Can someone please help with this. Thank you in advance! Hi, I am getting an error on this code - sometimes! - and I'm not sure what it is. If I run this as is there is no error. If I add it into another page with other stuff it's ok for a while and then I get an error. So, I added my new page block my block to this code and waited for the error to appear so I could determine a conflict - but it was fine. And then a few clicks later the error. This is the error in IE. In Firefox it seems to be fine lol. Line 159 Char 3 'window.document.sendform.message_text' is null or not an object Can someone make any suggestions? Code: <script language="JavaScript" type="text/javascript">
maxlen = 160;
countLen();
function countLen()
{
message_text = window.document.sendform.message_text.value;
realLength = message_text.length;
if (realLength>maxlen)
{
realLength = maxlen;
window.document.sendform.message_text.value = message_text.substring(0,maxlen);
}
message_text = window.document.sendform.message_text.value;
// del enter
var m = message_text.match(/[\r\n]/);
if (m !== null)
{
window.document.sendform.message_text.value = message_text.replace(/[\n\r]/g, '')
}
window.document.sendform.messlen.value=maxlen-realLength;
}
</script>
<cfset thismessage = "Hi, is this a start">
<cfform action="step2.cfm" method="post" id="sendform" name="sendform">
<cfoutput><textarea id="styled" name="message_text" onkeypress=countLen() onkeydown=countLen() onkeyup=countLen() onchange=countLen() onmouseover=countLen() rows="4">#thismessage#</textarea></cfoutput>
<table width="331" border="0" cellpadding="0" cellspacing="0">
<tr>
<td width="5"></td>
<td width="26"><cfoutput>
<input name="messlen" type="text" value="160" class="counterField" onFocus="this.form.message_text.focus();" /></cfoutput></td>
<td width="300">characters remaining</td>
</tr>
</table>
</cfform>
Thanks! Much appreciated! Kind regards, jo I have a bug that is only seeming to effect IE 8:. It seems to have a problem with this line: theSelectBox.selectedIndex = -1; This is where my full page is: http://www.mauirealestate.net/advancedsearch-rets.php Also has a weird display issue in IE8, but not in "compatibility view", which the bug may fix. Works and looks beautiful is Safari and Firefox. Any suggestions are helpful. Hi, I have added an validation script for Pizza menu. Validation working fine in all browsers except IE. When I working in IE8 it throws an error "length is null or not an object error in IE8". Please help me. See Java script code below: <script> function UnCheckRadios(radioButtonGroupName) { var formName = "frmOrder"; var form = document.forms[formName]; alert(form); var noOfRadioButtons=form[radioButtonGroupName].length; for(var x=0;x<noOfRadioButtons;x++) { chk=form[radioButtonGroupName] .checked=false; } } </script> PHP code: <input type="radio" id="<?=$subitem['subgroup_id'];?>_comboleft" name="<?=$subitem['subgroup_id'];?>_comboleft" value="<?=$subitem['id'];?>:Left Side" onclick="UnCheckRadios('<?=$subitem["subgroup_id"];?>_combowhole');"> Hi, first post here. I was working on code for opening a link in a new window when clicked. I read somewhere that it's a good idea to remove all of the javascript elements from the HTML. So I pieced it together and it works. But I get the following error in IE8: Code: Message: 'document.getElementById(...)' is null or not an object Here's the relevant HTML: Code: <a href="http://www.samplesite.com" id="sampleid">Sample Text</a> And here's the relevant javascript that I put in a seperate .js file: Code: function samplefct() {
window.open(this.href);return false;
}
window.onload = function()
{document.getElementById("sampleid").onclick = samplefct;
}
The code does work as planned. But I'd still like to get rid of the error. Can anybody think of a different way of stating the javascript that would perform the same thing and lose the error? Any help would be greatly appreciated. Thanks! IB Hi , I have a an application which works fine on XP IE6, but the same application throws error " Java Script Error Style is null or not an object" on XP IE8 and Windows 7 . Please help me to resolve this issue. Please Tahnks in advance I am not very experienced at javascript. Having trouble with some I used for a google map on some of the pages on company site. Appreciate any assistance someone out there could give. If you go to http://www.ghd.com/global/locations/...nsland/cairns/ you can see the error. Get the debug message: an error occurred on this page: Line: 74 Character: 9 Error: GetElementById(....)' is null or not an object The map is actually in a i frame For some reason in ie 6 this script error is popping up when the page loads, but does not when not shown within a iframe http://www.ghd.com/map/cazenovia.html İ want to use this code but when the page opens, I get a null reference error. When I open the page a second time, this error doesn't occur. I understand when the site caches, this error doesn't occur. The error comes from tb_show function. My code: <script type="text/javascript"> function writeCookie(CookieAdi) { var dtGun = 1 var strValue = "1" if (dtGun == null || dtGun == "") dtGun = 365; var d = new Date(); d.setTime(d.getTime() + (dtGun * 24 * 60 * 60 * 1000)); var zt = "; expires=" + d.toGMTString(); document.cookie = CookieAdi + "=" + strValue + zt + "; path=/"; } function readCookie(cookieadi) { var c = document.cookie; if (c.indexOf(cookieadi) != -1) { s1 = c.indexOf("=", c.indexOf(cookieadi)) + 1; s2 = c.indexOf(";", s1); if (s2 == -1) s2 = c.length; strValue = c.substring(s1, s2); return strValue; } } writeCookie('OnerFacebook'); if (readCookie('OnerFacebook') != 1) { tb_show('', 'http://www.mobilyala.com/OnerFacebook/?KeepThis=true&TB_iframe=true&height=500&width=300&modal=true', ''); } </script> What should I do for it? Hello, I hope you can help me, I have used a really simple image script which features 3 thumbnails, you click one thumbnail and it loads the image as a larger image. Works perfectly in Google Chrome, Firefox - and then I've come to try in IE8... works perfect BUT javascript error as follows: - Webpage error details User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; GTB6.6; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; MDDC; InfoPath.2; .NET4.0C) Timestamp: Fri, 31 Dec 2010 17:14:48 UTC Message: 'document.images.image0' is null or not an object Line: 13 Char: 1 Code: 0 Here is the code, what am I doing wrong? I can't spot it, theres a couple of threads online from 2005 about this script but none have helped me clear the error. Code: <html>
<head>
<script language="JavaScript">
image0 =new Image();
image1 =new Image();
image2 =new Image();
image0.src ="http://ec.europa.eu/information_society/activities/egovernment/images/project_logos/sample.jpg"
image1.src ="http://ec.europa.eu/information_society/activities/egovernment/images/project_logos/sample.jpg"
image2.src ="http://ec.europa.eu/information_society/activities/egovernment/images/project_logos/sample.jpg"
document.images['image0'].src=image0.src;
document.images['image1'].src=image1.src;
document.images['image2'].src=image2.src;
function image_click(clicks)
{
if(clicks==0){document.images['large'].src=image0.src;}
if(clicks==1){document.images['large'].src=image1.src;}
if(clicks==2){document.images['large'].src=image2.src;}
}
</script>
</head>
<body>
<a href="javascript:image_click(0)"><img src="http://ec.europa.eu/information_society/activities/egovernment/images/project_logos/sample.jpg" height="93" width="123" alt="" name="image0" border="0"/></a>
<a href="javascript:image_click(1)"><img src="http://ec.europa.eu/information_society/activities/egovernment/images/project_logos/sample.jpg" width="123" alt="" name="image1" border="0"/></a>
<a href="javascript:image_click(2)"><img src="http://ec.europa.eu/information_society/activities/egovernment/images/project_logos/sample.jpg" height="93" width="123" alt="" name="image2" border="0"/></a>
<img src="http://ec.europa.eu/information_society/activities/egovernment/images/project_logos/sample.jpg" align="middle" border="0" width="418" height="284" name="large">
</body>
</html>
Hi i have done some reading on the net today because i am getting an error on ie. I did find the javascript twice in my code, once in the header and once here, so i removed it from the header. I also changed to src to the full url. But i am still getting this and i dont know why. the file is located in the root directory. Code: Webpage error details User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; SearchToolbar 1.2; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; msn OptimizedIE8;ENUS) Timestamp: Sat, 30 Jul 2011 16:03:05 UTC Message: 'null' is null or not an object Line: 8 Char: 3894 Code: 0 URI: http://www.mysite.com/swfobject.js Code: <script type='text/javascript' src='$CONST_LINK_ROOT/swfobject.js'></script>
<script type='text/javascript'>
var s1 = new SWFObject('player.swf','player','400','300','9');
s1.addParam('allowfullscreen','true');
s1.addParam('allowscriptaccess','always');
s1.addParam('flashvars','file=$CONST_LINK_ROOT/movies/$sql_array->vid_id.flv');
s1.write('preview');
</script>
<embed src='$CONST_LINK_ROOT/flvplayer.swf?file=$CONST_LINK_ROOT/movies/$sql_array->vid_id.flv&autoStart=false' width='175' height='175' quality='high' type='application/x-shockwave-flash' pluginspage='http://www.macromedia.com/go/getflashplayer'></embed>
would appreciate any suggestions thanks. i was on 1.5 swfobject i did download 2.2 and im guessing all you do is replace the swfobject.js file to upgrade it, but what happened is it gives me this now. Code: Webpage error details User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; SearchToolbar 1.2; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; msn OptimizedIE8;ENUS) Timestamp: Sat, 30 Jul 2011 16:31:08 UTC Message: 'SWFObject' is undefined Line: 1283 Char: 1 Code: 0 URI: http://www.mysite/video_admin.php?type=v i dont mind going back to the old version i just need to get this working and im soooooooo lost lol ok another update, this is becomming maddening lol. once i have this line in the header php Code: <script type='text/javascript' src='$CONST_LINK_ROOT/swfobject.js'></script> I never have to use it again as long as they header php is included correct? This is what is driving me nuts, im back on 1.5 and it says its undefined Code:
but am in not defining it on this line? ---> var s1 = new SWFObject('player.swf','player','400','300','9');
<script type='text/javascript' src='swfobject.js'></script>
<script type='text/javascript'>
var s1 = new SWFObject('player.swf','player','400','300','9');
s1.addParam('allowfullscreen','true');
s1.addParam('allowscriptaccess','always');
s1.addParam('flashvars','file=$CONST_LINK_ROOT/movies/$sql_array->vid_id.flv');
s1.write('preview');
</script>
Another Update. I am back to the original question. null is null or not an object.. in my search i have found this found a solution. basically Internet Explorer is crappy and doesnt like the setAttribute property so had to change the onchange handler by directly changing the attrbute for the object like so. object.onchange = function() {} i have no idea what they means, does that mean i need to change swfobject.js or does that mean i have to change my xml request. and if it is the swfobject i have no clue what they mean or what lines Hi I've implemented Busybox on a website to display FLV files in a popup player. This works fine, except for the following error in IE (FF is fine) when I close the popup: 'null' is null or not an object I think I've narrowed it down to the following block of code, but am stuck as to what to do from here. Code: var cl = new Element('img',{
'styles':{
width:'24px',
height:'24px',
position:'absolute',
top:'-20px',
right:'-20px',
'z-index':'100000'
},
'src':'bumpbox/closed.png',
'id':'closer'
})
cl.addEvent('click',function(e){
e = new Event(e).stop();
bg.dispose();
$(el).getChildren().dispose();
eff2.start({
'width':[maxw,1],
'height':[maxh,1],
'left': [endleft,middleH],
'top': [endtop, middleV+s]
})
})
The IE error is just giving me line number 1 of the php, but the error, I'm sure, lays in the Javascript. Many thanks Hi All, I am using javascript to get the number of rows in my HTML Table by using below code: Code: var oRows = document.getElementById("HTMLTable").getElementsByTagName('tr');
var iRowCount = oRows.length;
Later I am using iRowcount in the FOR loop further in my code as below: Code: for(k=1; k<=iRowCount; k++) {
............................
rest of code ...........
............................
}
This piece of code is working fine (i.e. it handles the functionalities which is needed) but it also opens a new browser window with the error message "Object Required".I have really no idead why this is happening.Can anyone suggest me the reason for this? Thanks in advance. -Anil hi, I am trying to setup an iphone application in Dashcode using what I have he http://www.mypubspace.com/dashtest/order.html Result of expression 'ajaxDisplay' [null] is not an object which is on the following line: Code: ajaxDisplay.innerHTML = ajaxRequest.responseText; is there a way around this? thanks I am trying to understand why I had an error, or why my solution worked. In my HTML I had: Code: <script language="JavaScript" type="text/javascript" src="Book.js"></script> <script language="JavaScript" type="text/javascript" src="Book_TEST.js"></script> Book.js said: Code: function Book(title, author)
{
this.title = title;
this.author = author;
}
Book.prototype.toString = function()
{ return '"' + this.title + '" by '+ this.author; };
var Book = new Book ("John", "Dough");
alert (Book); // displays "John Dough"
And, predictably, at this stage, the code worked. Book.js said: Code: var myBook = new Book ("JavaScript Tutorials", "Herong Yang");
However, at this point the JavaScript would crash and I'd get an error "Error: Book is not a constructor javascript." I drove myself nuts trying to figure out why the code wasn't working at this later point. Eventually, I copied another object: Code: /*
* Person class
*/
/**
* Person constructor
*
* @param {String} first
* The person's first name
* @param {String} last
* The person's last name
*/
function Person(first, last)
{
this.first = first;
this.last = last;
}
/**
* Create a string representation of this object
*
* @return {String} A string representation of this object
*/
Person.prototype.toString = function()
{
return this.first + " " + this.last;
};
/*
var person = new Person ("John", "Dough");
alert (person); // displays "John Dough"
*/
and then used find and replace to swap {Person, first, last} with {Book, title, author}, resulting in: Code: /*
* Book class
*/
/**
* Book constructor
*
* @param {String} title
* The Book's title
* @param {String} author
* The Book's author
*/
function Book(title, author)
{
this.title = title;
this.author = author;
}
/**
* Create a string representation of this object
*
* @return {String} A string representation of this object
*/
Book.prototype.toString = function()
{ return '"' + this.title + '" by '+ this.author; };
var Book = new Book ("John", "Dough");
alert (Book); // displays "John Dough"
Now, the code worked fine in both script. (i.e., no more error.) So far as I can tell, the only differences between the first and next version of Book.js are the comments and the whitespace. Am I missing something? Can the comments or whitespace somehow effect the logic with which this code has been executing? If I get an error like this again, is there an easier/better way to fix it than to essentially retype the code? Thanks in advance for helping me to understand this. Hello, I'm working on web apps for a company and unfortunately the websites work in Mozilla, chrom and IE9 but not in IE8. In IE8 the error message "undefined is null or not an object" is pointing to this line: temp = val.replace(/-/g, "/"); That line is inside a function. I'm not sure how to troubleshoot this...any help would be appreciated. |
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