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...
function checkValidFormInput(id, noCheck) { if (noCheck == '') { var idValue = document.getElementsByName(id);[code].....
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.what I have wrong in my code that is causing it not to read the form field.my form field is coded as so..
I modified a little a script from dynamicdrive.com (Animated Collapsible DIV v2.01[URL]... It works well, but something is wrong. When you click on the button image a javascript error popup appears:
An error exists inside your "ontoggle" function: TypeError: document.getElementById(divobj.id + "_info-toggle") is null Aborting execution of function.
You can see it in: http://cineout.es/div_test/divs_test2.html
I'm getting the following problem. The reason is that the object appears through AJAX. But if I choose it NOT to appear it gives this problem. How can I avoid this? I put an if statement inline
I want to restrict getElementById to search children of a specific element instead of searching the entire document, in the same way that I can do getElementsByTagName using a specific element as the parent.
In this particular instance the parent is a table and the elements I'm interested in are all TDs, so I did the basic getElementsByTagName('TD') off the table and looped through this array checking the IDs. However, I'm suspecting that the browser can do getElementById faster than I can do a loop in javascript. Is there a neater way to do this? For now, I'll settle for IE-only solutions, though it would be nice to have things work in generic browsers.
None of my getElementById (or other) references produce anything but "undefined." This occurs in the latest versions of Fx, IE, Chrome, and Safari, so it must be something I am doing but not not seeing here. I have boiled it down to the following without success, and wonder whether there is some add on interaction. Fx 3.6.12 has the problem with this code: <code> <html> <head> <title>This is a test of getElementById</title> </head> <body> <div id="area" name="area_name">xxx</div> <script type="text/javascript"> var divs = document.getElementsByTagName('div'); var msg = ''; msg = 'Divs[0] contains ' + divs[0] + ' with width = ' + divs[0].width + " "; msg +='Test area width by id = ' + document.getElementById('area').width + " "; msg +='Test area width by name = ' + document.getElementsByName('area_name').width; alert(msg); </script> </body> </html> </code>
I can not for the life of me get an ajax example/tutorial to work. I have tried dozens including prototype library and JQuery.
Here is my latest attempt:
As you can see I am trying to alert the variable teamH but I keep getting an undefined in the alert. I also tried a static drop down and I received the same undefined alert.
How I get that variable to contain my drop down choice?
Here's the problem: I have several hidden divs containing information. When you click on a link, javascript executes which is supposed to move the appropriate info from one of the hidden divs into the visible 'body' div. The javascript isn't working, though, and I'm getting 'undefined' instead
Basically i'm trying to draw a box over an image which is turning out to be a nightmare. The problem i'm getting at the moment is that i'm creating a line with <div which works when it's not hidden but I need to be able to make it hidden so I can use layers to show all when it finished drawing to make it smoother. This is how some other scripts are doing it that i've seen. So i've got it drawing a line and I need getElementById to pick out the layer but it's only picking out NULL with the one i've got enabled below. I've tried the others but they just come out as errors. I need to get top2 which is the <div line to show itself but I can't seem to reference it by getElementById. I use linux mozilla so i need it working in mozilla as well as windows that's why i'm using getElementById. My code is below any ideas anyone?
I'm trying to do is change the backgroundColor of my input text with js..
This the js part
Code:
And this is the html part
Code:
Basicly what the script do is to check the hidden field cf with value of '0' if found it will execute changeCssProp(thefield)..but the problem is js return error of document.getElementById(thefield) is null
I'm trying to do is change the backgroundColor of my input text with js..
This the js part
Basicly what the script do is to check the hidden field cf with value of '0' if found it will execute changeCssProp(thefield)..but the problem is js return error of document.getElementById(thefield) is null
I am trying to use document.getElementById in FF but its not working. There is a main page. in that mainpage there is a iframe and in that iframe (id = DocFrame) there is a textbox (id="fileuploadedcnt") which i am trying to access. there is no error. ofcourse i have given name and id to the textbox. Below is the code
In the abpve case i tried both the name and id properties. with Name property i get the HTMLObj alert but again it fails if i attach value method. And for id, it doesnt work at all
I've got the following code on one of my pages, it works fine in IE6 and Netscape 6.2, but when you get around to using it on Netscape Navigator 4.08 it doesn't work, instead giving me a "document.getElementByID is not a function" error. Here's the code it has a problem with...
function CrseDets(IDS) { window.open('coursedetails.asp?whereby=' + document.getElementById(IDS).value,null,'top=0,left=0,width=672,height=500, background="gfx/backgrd.gif", scrollbars=yes'); }