JavaScript - Input File -> Onbrowse?

Hello all,
I have in my application input type file for uploading files. How can i do javascript validation to check if filename has special characters in it??

Thanks

hi,
i am using <input type = "file" id = "upload"> in my html page. i want to disable the textbox of this control so that user cannot type any file location here. user can upload file only through browse button.

is there a way to disable this textbox thru javascript?

thnx

Yes - I need a script that will validate user input against a text file - exactly like the one in the left sidebar at
http://www.oilpatchfuel.com/Pages/Welcome.aspx
titled "Delivery Area".

Thanks!

I am wanting to enable a file to be uploaded and attached to an email form. I however wish to only limit this to picture files with a size no larger than 1MB. Is there a way to do this with javaScript.

My Html code:
Code:

<!-- Add a picture file -->
<tr><td align="left">Upload your favourite Yorkie photo for the Picture of the Month.<br />
<input type="file" name="upload" accept="image/gif" size="30" style="margin-left: 15px; margin-top:5px; color: #0000; background-color: #00FF77;" /></td></tr>

Just need to know if this can be validated with javascript to ensure the conditions are as per above.

I am thinking this should be fairly easy but yet I am not getting far. I want to have a form with a single text imput field for a zip code. Depending on which zip code the user enters will determine which url they will be sent to. If they enter a zip code which is not in the script, they would be sent to a default url.
I am also assuming this can be accomplished with javascript.

Any help is greatly appreciated.

I have a problem with adding new inputs to a form (if and when required),

Internet Explorer is fine but in Firefox if any previous input fields are filled when the more button is clicked they get reset to blank.

JS:
Code:

fields = 0;
function addInput() {
if (fields != 100) {
document.getElementById('input').innerHTML += "<input type='text' name='input[]' size='30' />";
fields += 1;
} else {
document.getElementById('input').innerHTML += "<br />Maximum 100 fields allowed.";
document.form.add.disabled=true;}
}

form:
Code:

<form action="index.php" method="post">
<div id="input">
  <input type="text" name="input[]" size="30" maxlength="15" />
</div>

<!-- button -->
<div id="more">
  <input type="button" onclick="addInput()" name="add" value="More" />
</div>
<!-- // button -->

 <input type="submit" name="submit" value="Submit" />

 </form>

as usual any help is appretiated ..

Hi,

i want to set an input value to the same value as the input selected from another input on the same form

so when the user selects input 1
i want the hidden input2 to get the same value

im guessing i use onsubmit because its hidden so there wont be a focus or blur

this would be part of the input

Code:

onsubmit="(this.value = this.othervalue)"

othervalue being the other input name="othervalue"

is that the correct syntax

Hi,

i have an input value array for customer ids, i also need to make a copy of that array into another input element on submit to use for another process.

So far here is what i have come up with regarding the js


the current html is this

Code:

<!-- original input -->

<input id="cb<?php echo $i;?>" name="cid[]" value="<?php echo $commissions[$i]['id'];?>" onclick="isChecked(this.checked);" type="checkbox" />


<!-- this is new html input which  is outside the $i loop that i need a copy of cid[] stored on submit

<input type="hidden" name="ids[]" onsubmit="valueTovalue();" />


<!-- here is the js so far --> 

<script type="text/javascript">

function valueTovalue()
{

 var valin = document.adminForm.cid.value;  //cid is the array cid[]
 document.adminForm.ids.value = valin; //copy the array to the new input element array ids

}

</script>

so basically if they click 1 cid then ids will also show 1, if they click all cid then ids will show all as well.

will that work the way i have it, am i even close here..

thanks

update: what i have seems to work fine for text values or string values but not for arrays, what am i missing that it wont copy an array?




Array
(
[cid] => Array
(
[0] => 1
)

[task] => remarksonly
[remark] => hhhyyy
[boxchecked] => 1
[ids] => Array
(
[0] =>
)

)




am i getting closer lol


Code:

function valueTovalue()
{
 var valin = cid.concat;  
 document.adminForm.ids.value = valin.concat; 

return(true);

this has to be close i hope

Code:

document.adminForm.ids.value = [].concat(document.adminForm.cid);

Hi all

can someone guide me (total JS newbie) on this presumably pretty easy task?

I have a "parent" page with some text inputs in it (a form). This is what I am after:
-when the user clicks a link it pops open a new window via JS - "child" (this is working).
-in the "child" window there are also some text inputs (another form) (done).
-when the user changes the value for 'testChild_textInput_4' in the child window, then I want it to automatically set this same value, to effectively overwrite, what is currently in 'testParent_textInput_2' in the parent window.

Presumably this involves an onChange event, but it is also OK with me if the needful (the text input's value in the parent window being overwritten) happens upon the child window's form submit. If anyone can show me either trick, I would be thrilled!

I set up a test page to make this all easy to talk about:

http://www.yellow-turtle.com/testDumpMe_parent.html

Please let me know!
Thanks!
-John

Hi,

Can someone tell me what I am doing wrong. Script works on the first attachment but not the other two?

Code:

<script type="text/javascript" language="JavaScript"><!--
function ExtensionsOkay() {
var extension = new Array();
var fieldvalue = new Array();
fieldvalue[0] = document.customApp.attachment_1.value;
fieldvalue[1] = document.customApp.attachment_2.value;
fieldvalue[2] = document.customApp.attachment_3.value;
extension[0] = ".doc";
extension[1] = ".docx";
extension[2] = ".txt";
extension[3] = ".pdf";


// No other customization needed.
for(var f = 0; f < fieldvalue.length; f++) {
var thisext = fieldvalue[f].substr(fieldvalue[f].lastIndexOf('.'));
for(var i = 0; i < extension.length; i++) {
	if(thisext == extension[i]) { return true; }
	}
alert("Your upload field " + f + " contains an unapproved file name.");
return false;
}
}
//--></script>

I can get this code to take two separate sections of a file which are not beside each other and write them into another file. It always comes up as a single full line of the code instead of the sections I want. The code includes the student number first name last name and three results of assignments. I want the code to write the student number and three results of all the students into a file and then work out the average of the student results. Can you help?

Code:

 try{                    
               while (in.hasNextLine())
               {
                  String line = in.nextLine();
                  out.println( line);
                  int i=0;
                  if(!Character.isDigit(line.charAt(i)))  { i++; }
                  studentStringNumber = line.substring(0, i);
                  String stringResult = line.substring(i);
                              	
                  studentStringNumber = studentStringNumber.trim();
                  stringResults = stringResults.trim();
                  double stringResultsValue = Double.parseDouble(stringResults.trim());
                  stringResults = in.nextLine();
                              	
                                 
                  studentStringNumber = in.nextLine();
                  studentNumber = Integer.parseInt(studentStringNumber);
                  if(in.hasNextInt())
                  {
                     int value = in.nextInt();
                  }
               						 					   
                  results = Double.parseDouble(stringResults); 
                  if(in.hasNextDouble())
                  {
                     double value = in.nextDouble();
                  } 
               						               	
                            	
                  Scanner lineScanner = new Scanner(line);
                  studentStringNumber = lineScanner.next();
                  while(!lineScanner.hasNextDouble())
                  {
                     studentStringNumber = studentStringNumber+ " " +lineScanner.next();
                  }
                  stringResultsValue = lineScanner.nextDouble();     
               }
            }

Hi i am using javascript for the first time and i have a problem .I have 2 files html and javascript file in seperate but i donot know how to make them work .the code is down below .Thanks in advance for help.


HTML
<!DOCTYPE html>
<html>
<head>
<script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
<meta name="description" content="Instagram API - usage" />
<meta charset=utf-8 />
<title></title>
</head>
<body>
<input id="lat_input" type="number" value="60.221374"/>
<input id="lng_input" type="number" value="24.805391"/>
<button id="search_location">Search</button><br/>
<button id="get_popular">Get popular</button>
<div id="images"></div>
</body>
</html>



Javascript file


// API DOCUMENTATION:
// Instagram Developer Documentation

var clientId = 'e7538f47e197479d8d32a63ae3ae4cd2';

$('#search_location').click(function () {
getMediaByLocation($('#lat_input').val(), $('#lng_input').val());
});

$('#get_popular').click(function () {
getPopularImages();
});

function getMediaByLocation(lat, lng) {
var o = {
lat: lat,
lng: lng,
client_id: clientId
};

$.getJSON('https://api.instagram.com/v1/media/search?callback=?', o, function (response) {
processImages(response.data);
});
}

function getPopularImages() {
var o = {
client_id: clientId
};

$.getJSON('https://api.instagram.com/v1/media/popular?callback=?', o, function (response) {
processImages(response.data);
});
}


function processImages(array) {
$('#images').empty();
$.each(array, function (index, element) {
var fs = $('<fieldset>').appendTo('#images');

$('<img>').attr('src', element.images.low_resolution.url).appendTo(fs);

if (element.caption) {
$('<pre>').text(element.caption.text).appendTo(fs);
}

$.each(element.comments.data, function (index, comment) {
$('<pre>').text('Comment from ' + comment.from.full_name + ': ' + comment.text).appendTo(fs);
});

});
}

Hello all, I am new here and have a question about a AP Div I am using as a dropin. It drops in when the page loads and I would like it to only drop in if a visitor clicks a link I designate as the dropin link. Can someone please tell me how to accomplish this? I am pasting in the js file and I will also need to know how to set up the "a href" link to call the dropin! Thanks is advance for any help you may give!

Code:

// JavaScript Document

var ie=document.all
var dom=document.getElementById
var ns4=document.layers
var calunits=document.layers? "" : "px"

var bouncelimit=32 //(must be divisible by 8)
var direction="up"

function initbox(){
if (!dom&&!ie&&!ns4)
return
crossobj=(dom)?document.getElementById("dropin").style : ie? document.all.dropin : document.dropin
scroll_top=(ie)? truebody().scrollTop : window.pageYOffset
crossobj.top=scroll_top-250+calunits
crossobj.visibility=(dom||ie)? "visible" : "show"
dropstart=setInterval("dropin()",50)
}

function dropin(){
scroll_top=(ie)? truebody().scrollTop : window.pageYOffset
if (parseInt(crossobj.top)<100+scroll_top)
crossobj.top=parseInt(crossobj.top)+40+calunits
else{
clearInterval(dropstart)
bouncestart=setInterval("bouncein()",50)
}
}

function bouncein(){
crossobj.top=parseInt(crossobj.top)-bouncelimit+calunits
if (bouncelimit<0)
bouncelimit+=8
bouncelimit=bouncelimit*-1
if (bouncelimit==0){
clearInterval(bouncestart)
}
}

function dismissbox(){
if (window.bouncestart) clearInterval(bouncestart)
crossobj.visibility="hidden"
}

function truebody(){
return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}


window.onload=window.setTimeout(initbox,5000);

Does anyone know how to accomplish this? I got the html file to show but none of the text in the file will show.

I need to change input type="text" to input type="password" via JavaScript

Code:

<form id="login" action="#" method="post">
<input id="username-field" type="text" name="username" title="Username" onmousedown="javascript:this.value=''; javascript:this.focus();" value="Username" tabindex="1" />
<input id="password-field" type="text" name="password" title="Password" onmousedown="javascript:this.value=''; javascript:this.type='password'; javascript:this.focus();" value="Password" tabindex="2" />
<input type="submit" name="submit" value="sign in" tabindex="3" />
</form>

This works in Firefox and Safari but not IE So then I tried this code

Code:

<script type="text/javascript">
function passit(ip){
var np=ip.cloneNode(true);
np.type='password';
if(np.value!=ip.value)
np.value=ip.value;
ip.parentNode.replaceChild(np,ip);
}
</script>

<form id="login" action="#" method="post">
<input id="username-field" type="text" name="username" title="Username" onmousedown="javascript:this.value=''; javascript:this.focus();" value="Username" tabindex="1" />
<input id="password-field" type="text" name="password" title="Password" onmousedown="javascript:this.value=''; passit(this.form[0]); javascript:this.focus();" value="Password" tabindex="2" />
<input type="submit" name="submit" value="sign in" tabindex="3" />
</form>

This does what I need but turns the username type to password field not the password box

Please can somone help!