Checking If File Exists
Dec 4, 2006In client side, we can check if some image exists using onerror. I wish the same behavior to check files used in object tag (in client cache, not in file system), like swf, wmv and wma, etc.
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Checking To See If Element Created With CreateElement Exists
Sep 16, 2009I'm trying to check to see if a dynamically created element exists BEFORE creating another element of the same exact type...but my if statement at the beginning is not working and another element is just created.
function writeElement(id) {
if(document.getElementsByTagName('transElement')[0]) {
var id = id;
killElement();
writeElement(id);
}
var id = id;
var transElement = document.createElement('transElement');
[Code]...
If The File Does Not Exists ??
Jul 23, 2005<INPUT id = "bot1" TYPE="button" name="text1" value="" size="40" onClick="location.href= valore12" >
the onclick is opening a file. How can I tell javascript a message has to be seen if if there is not that file in the specified directory...
Check If File Exists
Jan 29, 2006I am having troubles finding a way to use JavaScript to see if a file exists before an ASP file upload script runs. Is there an Exists check for JavaScript? I thought I found an ObjectName.Exists but doing this did not work.
View 6 Replies View RelatedCheck If File Exists On Server
Oct 11, 2006I am trying to find a way to search to see if there is a specific file located in the current directory on the server. If a folder contains file1.txt or file2.txt and depending on which file is in that folder change a certain javascript variable. What it comes down to is, is there a way to search for specific files on the server and limit that to the current directory/folder.
View 12 Replies View RelatedCheck File Exists Before Linking....
Jan 6, 2003Is there a way of checking a file exists before linking to it?
I sell didjeridoos and handdrums.
I was hoping to create small html program for each drum, somthing like this....
<script>
thisdrum=new Image()
thisdrum src=drum001.gif
price=100
rim=12
height=24
</script>
<script src=createpage.js>
</script>
and saved as drum000 to drum999
Now I need a function included in the creatpage.js, that checks if a file exists,(eg drum000.html) if it does, go there, if it doesn't, try drum001.html
any suggestions on how I could go about it?
JQuery :: Check If URL/file Exists On Input?
Oct 4, 2011This is probably going to show how new I am to jQueryI have a form with an input text field for entering a URL. The user will most likely paste a URL and I want to automatically verify it's status once the user leaves the field. Basically just make sure the page loads ok.I've found dozens of topics that are close to this, but my lack of jQuery skills is hindering me from adapting any of them properly.
View 3 Replies View RelatedUsing Javascript To Determine If File Exists On Host Site
Jul 20, 2005I'm new to javascript and PHP and I am wondering if there is a method or function to capture a 404 error in the event a particular html file cannot be found. I want to redirect that error to another page or design the code to send me an email telling me what page was selected and not found. In other languages I can trap such an error and respond to it.
View 3 Replies View RelatedJquery :: Username Validation(exists Or Not Exists In Database)?
Oct 17, 2011I am working on a registration page.I did all the validation but facing problem during username validation.when a user enter email id in the textbox,it first check whether it is present in database or not.. if not present "register successfully" otherwise "email exists"
[Code]...
JS - Checking A File Update
Jul 23, 2005I have a site with a news pages and I'd like the navigation to include a
blinking 'NEW!' when that page has been updated within the last three days.
It works fine for the one page (if you're on the news page, it works great)
but I can't figure out how to check the time/date stamp on a file other
than the one currently loaded ...
Checking To See If A File Is Uploaded?
May 18, 2011So I'm trying to create a custom file uploader which will display the name of the file selected, but since I can't seem to figure out how to do this I've settled for checking to see if a file has been selected, but I'm still having trouble with it.Here's what I have...
<style>
#upload {
display: inline-block;
text-align: center;
[code]....
However the value doesn't change after the file has been selected. Could someone tell me a means of modifying this so that it will properly display once the file has been uploaded? Do I need to have some sort of constant refresh on the Javascript to check to see if the value has been changed?
Checking The File Extension?
May 14, 2010I have seen many Javascripts on Internet that checks the extension of the file before uploading. But all these scripts checks the extension when the Submit button is pressed. I want to check the file extension as soon as the file is selected. The script should delete the selected file from the type=file box and display an error message (when a file with the wrong extension is selected).
View 1 Replies View RelatedChecking If A File Is An Image?
Oct 6, 2010I got a file upload form (in asp), besides of checking if the extension is .jpg .bmp etc, how do i check if the file really is an image? so pple wont be able to change an exe file to jpg and upload it right away.
View 2 Replies View RelatedChecking For An Existing Instance Of A Js File?
Nov 2, 2010I was looking in the firebug debugger and noticed that my main .js file was somehow being called twice, but I don't see where. There are dozens of files involved in this particular problem, so I think the best way to go about solving it is to test - in run time - if my js file is already in place on the page, do nothing - otherwise call it. This is pseudo that I have monkeying around with but it's not working.
Code:
function checkFile() {
var fileExist = new fileExist();
fileExist.onLoad = isPresent;
[code]....
I thought this would work, perhaps it's because of an argument I need to pass in to checkFile(ZYX) but not sure.
Checking File On Server Without Refreshing Screen
Sep 3, 2009Is there a way using javascript to have it check if a file exists on the server? I'm trying to check for a file on my server without having to refresh the open webpage. If this can't be done with javascript, do you know which webpage languange can execute this?
View 4 Replies View RelatedChange Image On Webpage By Checking Text File On Site?
May 18, 2010I'm try to set up a webpge that will play a live flash video on the left-hand side(got that part working) and display one slide of a presentation(jpg) to the right of the video. I would like to be able to control when the slide image changes by having some js check a text file on my server. The text file could contain something as simple as "Slide1.jpg". I will manipulate the text file with some code I've already written. Is there some simple js code I can put in my page that will cause it to check the text file every 5 seconds, and if the content of the file has changed, to refresh the image on the page with the new image? I'm try to get away from the "clicking" sound that is caused by doing a simple refresh of an Iframe.
View 3 Replies View RelatedHow To Check If URL Exists
Aug 4, 2011I have a textbox for entering URL. I validate that URL using regular expression. Now the problem is, How do i know whether the entered URL is exist or not.?For example, if user enter "http://www.daniweb.cam" rather entering "http://www.daniweb.com", how do i intimate them that the entered url is not valid.?
View 1 Replies View RelatedCheck If A URL Actually Exists?
Feb 6, 2009Using Javascript I need to figure out how to check if a URL actually exists. The problem is that the Javascript file may not always be there so I have I have to check every time I need it.
AJAX is not an option AND its has to cross browser compatible.
*NOTE The URL will always be pointing to a Javascript File
[Code]...
Check If An Id Exists?
Sep 21, 2010I'm trying the figure out how to check if a id exists.
I have tried this;
if(document.getElementById("theID")
Then do this
But that doesn't seem to work.
All I want to do is if it doesn't exist then don't run the function.
How To Verify Webpage Exists
Jul 23, 2005I have the following script that auto-submits a form at intervals.
setTimeout("document.forms['pageReloader'].submit();",90000);
Unfortunately, sometimes the target webpage is not available and I get
"page not found". That immediately kills my application, until I manually
restart it.
Is there a way in javascript to first check if a link exists before the
form is submitted?
For php programmers, an example of what I want will be:
if(fopen("http://www.example.com/", "r") {
do something here...
}
Check If Function Exists
Oct 19, 2005How can I check if a function exists in any of the scripts on my page?
I prefer if it can work for both Javascript & VBScript.
Check If Object Exists?
Apr 13, 2006How do I check if an object exists in Javascript?
EG:
if (document.getElementById("product").value == null)
{
prodValue = "";
}
else
{
prodValue = document.getElementById("product").value;
}
This gives me an 'object required' error...
JQuery :: IF Id Exists Hide Other Id's
Jan 26, 2010I am trying to write a script that will search the page for a certain ID...if said ID exists, then I want to hide a few other IDs.[code]
View 4 Replies View RelatedJQuery :: Run Certain Script Unless If Div Exists?
Oct 14, 2011I want toa script to run unlessa div with an ID of #error-box exists.
This is the script...
<script>
RecoverScroll.hash();
RecoverScroll.start('personal-details');
</script>
Check Css Property Exists With JS?
Jul 2, 2011I'm using ccs3PIE with my site. What I want to do is check if a DOM element has a css property like border-radius and then add a class to it.
The problem I'm having is that I don't know how to check for the css property. I've been searching for it for a couple of hours now and I can't find anything that seems to work.
Check If A Select Value Exists?
Aug 31, 2009I found out how you can check if an array value exists but I can't seem to get it to work with the options array for some reason.
how I can find out if a certain select value exists?