I have some image data in a Javascript variable, and I want to display
it. I have a technique which works in Firefox but not in Internet
Explorer :
<script>
var testImage = <image data as a string>
</script>
<img src="javascript:testImage"></img>
I understand that this should work in Javascript 1.2 and above, which
supports null characters in strings. Does anyone know why this doesn't
work in Internet Explorer?
I'm kind of new to Javascript. I was trying to do this in HTML, but I was pointed in the direction of Javascript. I've found multiple examples of variable sending, but I can't seem to find one that I can easily change to send an image. I've got image [URL]. I want to send from examplesite.com/page.htm to examplesite.com/page2.htm. I want to make the variable named AxeOfPrecision. This may be a simple thing in Javascript.
View 7 Replies View RelatedI want to create a javascript function which preloads a few images.
The function preloadImages should receive a variable which indicates the web site current culture.
If culture = "pt-PT" then should use arrayptPT
If culture = "en-GB" then should use arrayenGB
and so on...
Then all images of the array should be loaded using a For loop.
All the images in the array are in path: images/ culture value /.
So the ideal would be to have only the image filenames in the arrays.
Then the loop would go throught the right culture array and load all the images there from folder images/ culture value /...
have created ecommerce site in zen 1.3.9h using a template by bling themes called "digital shop". sadly we cannot get any support. I have image handler 2 installed.my slider is producing blurry images and i need to know how to set the variables in the js script to stop it stretching the images. please view my problem.[url].....my pictures in other areas of the site are perfect and resolution is acceptable. i am sure that problems are due to slider.I found two JavaScript files that control the slider, they are in my - storeincludes emplatesdigitalshopjscript
first code;
this.each(function() {
var obj = $(this); [code]....
I have a program written in Javascript and fully functioning which takes a user-selected directory name and then displays all the photos in that directory in a certain format.
I am now wanting to expand the program to allow users to optionally enter their own strings and the program will use all the photos from www.flickr.com which use that string as a tag.
I have a PHP interface to flickr (called PHPflickr) which collects all the relevant photo urls. I now need to get these images back into my Javascript so I can process them using the existing functions (rather than rewrite all my functions in PHP code and have two sets of functions in the program). I found on another thread a means to do this for a date variable:
var jsArray = new Array(
<?php
$length = count($monthDataArray);
for ($i = 0; $i < $length; $i++)
{
echo '"' . addslashes($monthDataArray[$i]) . '"' . (($i < $length - 1) ? ',' : '') . "
";
}
?>
but being completely new to PHP I'm not sure what "addslashes" might be or what formatting will be necessary if I am starting with an array of urls. Code:
I have the following javascript function: Code:
function updateParent(dvalue, dfield) {
var field = dfield;
window.opener.document.form.field.value = dvalue;
alert("Value: " + dvalue + " Field: " + field);
self.close();}
I'm calling it as so:
<a onClick="javascript: updateParent(30,'image_id');">Update</a>
But I get the following error:
Error: window.opener.document.form.field has no properties
Why is it not picking up that I have defined the variable field as image_id?
I need to pass a javascript to JSP code but I cannot figure it out.
View 2 Replies View RelatedDoes someone know how can we bring variables from a PHP script to a
Javascript one ?
I have to build a Javascript function that needs variables generated by a
PHP script but i do not know the way to retrieve them into Javascript.
I was just reviewing some javascript pop up window functions on my website and I descovered something... that I set the exact same variable name twice for both functions... which is bookWindow. I tested this for pages that use both functions and both types of pop windows work no problem. Is there a problem in that I use the same variable name twice? Is this considered bad form? Or maybe it makes not difference at all because the variable only gets used when it is
called upon and then it leave memory.....
can anybody put forward a sensible argument javascript's behaviour of
creating a new global variable whenever I assign to a previously undeclared
variable. I can't beleive this is just for the sake of convenience (surely
we learned this much from basic).
here's my proposal: all "global" (document scope) variables must be declared
by 'var' outside a function block.
failing that, does anyone know any patterns or tricks I can use to make sure
I don't create a new global variable when I accidentally misspell a variable
name?
Here's the situation. I have a static html page which we want to update
to include some dynamic content. I want a counter that keeps track of
the number of times anyone presses the "add" button, and display that
number. So, that page would look something like:
Number of calls today: 5
Add | Reset
The "5" would increment with every click of the "Add" link. The "Reset"
link would reset the counter to 0.
I have a Perl script that does all of the accounting stuff (opens a file
that contains the number, increments it, resets it, etc). What I don't
know how to do is to get the data from the CGI script to the web page.
I'm imagining that you can use Javascript, but I can't figure it out.
My CGI script can accept three options (add, view, reset). So it you
call it like so [myscript.cgi?action=add], it increments the counter by one.
So, in a nutshell, this is what I want:
1) the web page to display the # of calls upon load.
2) When a user presses the "Add" link, it invokes the CGI script to
handle the accounting stuff, then refresh the page with the new number
of calls.
3) When a user presses the "Reset" link, it resets the counter to 0.
I was handed a project that, when launched, had some ajax problems--specifically, "Error: uncaught exception: Permission denied to call method XMLHttpRequest.open." That's easy enough to fix--found the call in the .js file that was referencing the development server instead of the live server, and I am aware of Javascript's same-origin policy, which makes good clean sense. Change that call, problem solved.
Unfortunately, it's not solved. I can change the reference from
var url='http://www.devserver.com/function.php?id='+id;
to
var url='http://www.liveserver.org/function.php?id='+id;
but that doesn't solve the issue of if someone comes to the page without the 'www' or to the other domain, whose TLD is a .com instead of .org.
In PHP, I'd simply write the function to dynamically generate the url string, using $_SERVER variables rather than hardcoding the url. But I'm no javascript guy. Any help would be appreciated.
I'd rather not have to put a php redirect in every page to make sure the url is what I want it to be. I'd much rather learn something new about Javascript.
A while back I was working on learning C++. However after finding out that making API's was too difficult I switched over to HTML and Javascript for a while to get it to do what I want without having to fry my brain on weird code statements.
Well now I've reached the barrier of being able to save data. For a while I've just had it to the point where the code I need is saved in a textarea and I copy and paste it in notepad. Then upon reentering I pull it out of Notepad and paste into the testarea.
Well enough with the bla bla bla. Is there a way I can use the <form method="post"> stuff to pass a variable to a C++ compiled program?
All I need to know is: 1) can I use <form method="post" action="SomeProg.exe"> and 2) what would the name of the posted variable be to use in my C++ code? As you can tell I running client-side so PHP and other server-side languages that WinXP don't support without special installation wont work.
I am pretty new to Javascript and have only created a few pretty basic scripts, mainly dealing with site navigation and mouseovers. I would like now to redo my private home page using a rather complex configuration of frames. It is my intention to use JavaScript (variables) to control the rather intricate page navigation.
My question is this. I know how to define a variable, increment or otherwise alter it's value and how to change a process path based on the value of a variable. I have done all of this within the SAME page. What I would like to know more about is the referencing and modification of variables in "pages" in other windows within a frameset.
I have something that runs on a server with no PHP or any of those widgets.
A user submits a form with 6 fields. Clicks "Go". A page appears that displays what he just entered, with a form of his data in hidden fields, and a link with document.form.submit() that takes you to a CGI program. It must be 2 different page loads.
Is displaying what he entered in the form in the next page possible with JavaScript? If so, what are the JS variables that would let me access that data?
I'm having a problem passing a variable through a URL because the
variable is supposed to hold a URL that has a variable of its own.
Here is an idea of what I'm trying to do:
href="javascript:
newWin('/vcrc/exitvcrc.jhtml&newURL=http://www.something.net/default.asp?sponID=ETC','NowLeaving',駼',
餠', 'no', 'auto','no');"
So, pretty much, the page I'm sending the variable to think there's two
variables (newURL and sponID), but sponID is part of the URL.
i have the following snippet of javascript:
liChilds[x].onclick = function(){
toggleSubMenu(sub_menu_id, false);
return false;
}
That code happens within a loop, and sub_menu_id has a different value through each iteration of the loop. For example, if it loops 4 times, then there will be 4 onclick functions and sub_menu_id would change for each one. This should happen in theory, but instead, whichever item you click on, sub_menu_id takes the value of its last value in the loop. (4 in this example)
My question is, how do I make the function toggleSubMenu take the value of sub_menu_id at the time the on click function is created (i.e while looping) rather than taking the value of sub_menu_id when it is actually clicked.
I'm having a problem getting javascript and vbscript to place nicely together. Here is what I want to do:
I'm getting values from my database for different exam types. Here are some sample values:
Exam Type1
Exam Type2
Exam Type3
Here is how I get the values in vbscript: Code:
Is there any simple way of passing HTML variables from one HTML page to another HTML page without using PHP or messy URL extensions?
View 5 Replies View RelatedThere will be a number of list boxes and other controls, with pop-up windows
to edit certain properties. It's the kind of thing I would normally have
done in VB but I want it to be browser-based. I've only used javascript for
trivial things before so this would be my first serious javascript
development. I would like it to run on all reasonably recent browsers.
The form starts with all the initial values being received from the server
(presumably just by pre-initialised data structures). The user tinkers with
it and when he is happy he presses 'submit' and the whole lot is submitted
to the server (presumably as a form post). This would be a few kb of data,
possibly 100 individual values but obviously in various data structures. I
guess there would be a few hundred lines of javascript code to manipulate
it.
My question is, is there likely to be a problem with manipulating and
sending this amount of data in Javascript. Sorry if this is a dumb question,
but like I said, I only used javascript for tiny programs before, so I'm a
bit unsure about its capabilities.
The URL is similar to:
https://url.com/form.htm?string=p,val1*l,val2*m,val3*t,val4*d,val5
Within the form, I have the following statement:
<input type="hidden" name="string">With this statement, string should take the value "p,val1*l,val2*m,val3*t,val4*d,val5"
I'm having a problem with the following script:
i'm trying to create some javascript string variables using php. i'm running into a problem because some of the variables span multiple lines and this is causing a problem. here is a sample of what i'm trying to do:
var thetext1=new Array()
thetext1[0]="info for #1 goes here"
thetext1[1]="info for #2 goes here"
thetext1[2]="info for #3 goes here"
etc.... the array values are output from a mysql db using php and used for a script i have on my page.
the problem is some of my strings span multiple lines and end up making it look like:
thetext1[36]= "this is an example
of how some stuff spans
multiple lines"
Using the javascript console in firefox i see the problem is: "Error: unterminated string literal." I believe it is because the string I am trying to input is spanning multiple lines. any idea on how to fix this?
i'm using php/mysql to create these javascript variables so i have access to their functions. i tried doing this:
str_replace( "
", '', $row['text']);
to replace the newlines with nothing but they're still there.
any ideas on how to get around this?
WANT: Client to save an image to disk pressing a "download" button.
The image name is dynamic, from JS code on another part of the
page
DID: Read somewhere I can use document.execCommand("SaveAs") to do it
This solves it for MSIE, at least. My code is below
PROBLEM: What actually happens with MSIE is:
1) A window pops up promting me to save as.
2) The filename is correct, but the saveas type shown in the box is limited to "html" and "txt"
3) The "image" that is saved is not an image, but an HTML file containing the link to the image!! This is NOT what I want!
PLEASE help. How do I get MSIE to save the actual image instead?
PS With netscape, instead of the saveas dialogue, a window opens with
the image displayed. By clicking <CTRL-S> I can save the actual image.
CODE ----
Is there anyway of disabling images in javascript, so that the alternative
text appears instead of the images? I'm trying to do a text-only version of my site.
Let's say I have a Javascript function that loops over and over. In
that function i have it alternating images on a button this way:
if(var==0){
var myHTML = "<input type='button' style='background-image:
url(grnbutt.jpg);etc. etc.'>";
var outq = document.getElementById("qbutt");
outq.innerHTML = myHTML;
}
else{
var myHTML = "<input type='button' style='background-image:
url(grnbuttdark.jpg);etc. etc.'>";
var outq = document.getElementById("qbutt");
outq.innerHTML = myHTML;
}
This works great using Firefox, and works with Internet Explorer also
EXCEPT if its set to "Check for newer versions of stored pages: Every
visit to the page". With that setting, IE will download those 2 images
from the server every single time through the loop. So then I tried
putting both images on the same jpg and then moving the image:
if(var==0){
var elem = document.getElementById("grn");
elem.style.backgroundPosition = "-100px 0";
}
else{
var elem = document.getElementById("grn");
elem.style.backgroundPosition = "center";
}
This also works, but also, constantly downloads new images when using
IE with the above setting. Microsoft calls this a "feature". They then
offer a fix for this "feature" that... doesn't work. Preloading
doesn't work. Loading the 2 images in a <divset to invisible doesn't
work. I've tried suggestions of creating php files that tell the
browser that the images don't expire for years. That didn't work for
me. Many people have also suggested that there is no way around it...
it can't be fixed until Microsoft fixes it.
So, is there any javascript way to loop 2 images on a button, without
Internet Explorer constantly downloading those 2 images over and over,
when its set to "Check for newer versions of stored pages: Every visit
to the page"?
I have a site that I have a bunch of rollovers for..
I have a preload image script as follows:
<SCRIPT LANGUAGE="JavaScript">
<!-- Begin
image1 = new Image();
image1.src = "/images/image1-over.jpg";
image2 = new Image();
image2.src = "/images/image2-over.jpg";
// End -->
</script>
This works just fine for NETSCAPE... it preloads it, so you can cruise over the rollovers perfectly without wait the first time you load.
However, with IE, it doesn't work the way it should, and it still takes time to load each rollover when you hover the first time. And they don't seem to cache properly and you're constantly reloading them.