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JavaScript - How Do I Select Part Of A String...
Hi all I am new here, hopefully someone can assist me with the following...
If I have ../PACKAGES/test/run.html stored in the variable myUrl and I want to extract whatever is between ../PACKAGES/ and /run.html how would I go about it? I understand that in this instance I could use: var actualUrl = myUrl.slice(12,16); but the length of the string is dynamic, the only parts that stay the same are the start (../PACKAGES/) and end (/run.html). I am new to java-script, so please be kind...any assistance would be much appreciated. Similar TutorialsMy problem is relates to getting part of the text from a div, then pass this on to a variable which then acts upon it. This is a short summary in detail: http://jsfiddle.net/defencedog/W9Fsw/ Above simulates a Forum like environment (PHPBB3). here user can't insert html in posts thus a customised BBcode ([doc])is made in which is placed the required src attribute, unique to every SCRIBD document. The goal is to get the text within the two [doc] & that will be something like (discarding the two BBCodes) Code: src="http://www.scribd.com/embeds/2942002/content?start_page=1&view_mode=list&access_key=key-sxlnrfvqu5s22kzi5xb" then pass it on as a variable named src, which will then replace the contents to achieve desired output. Notice the two problems 1] how do I select the div upon which the action is to take place I.e that contains [doc]. Remember there occurs other divs as well in a posted message? 2] How do I select the desired text? Plz do giv me some suggestions Hi, I have a bit of a problem and as my javascript is a rather poor I'm struggling to come up with a solution. Basically I need to split the variable "#country" into two parts and call the second half as the "this" value for '#int-dc'. Using '+' as the start point end ending at the end of the string. For instance 'this' returns 12+44 I want to split it to "12" and "+44" the latter (+44) replacing 'this' in the code below. Code: $(function() {
$("#country").change(function() {
$("#int-dc").val
($(this).val());
});
});
Thanks in advance. I need to extract a particular part of a string: Code: var str=(document.images('flag').src);
<img id="flag" src="../../../../img/ip/041-080/049p.png">
I only want the "041-080/049" part. It needs to be read from the right, not the left because the preceding left part will vary in length. How do I approach this? I'm trying to figure out if its possible to get only certain parts of a string like in PHP... If I have a function like this: Code: function getUrl(selectUrl) {
The selectUrl look like this: index.php?page=test1 Now what I want is to only get a variable with "test1". Thast means I want to extract the page=test1 out of the selectUrl... Is this possible...? I am having problem with editing string on mouse click. I have a string of text like this: Code: id1=&id2=&id3=&id4=& And now I need to show/hide part of string by clicking on a links. I would like to hide/show each id's (i.e. id1=& It is simple to hide whole text but how about part of it ? How can I use a string to select a variable? E.g. Code: function load_menu( menu ) {
//Availible menus
var login = Array('Login','Register','Recovery');
var settings = Array('Profile','Account','something');
//Menu container ID's
var cons = Array('menuitem1','menuitem2','menuitem3');
for ( var i = 0; i < cons.length; i++ ) {
document.getElementById(cons[i]).innerHTML = menu[i] ;
alert(menu[i]);
}
}
"menu" is "login". menu[i] should reference the "login" variable and then put one of the values for the login variable array in its place. If you understand what I mean? So if menu is settings then the settings array would be used. Hi all, I am having a hard time on this, can you help pls? I have this code? $("select[name=objeto"+contcheck+"]").change(function(){ $("select[name=titulo"+contcheck+"]").html('<option value="0">Carregando...</option>'); where contcheck is a counter, so a number. It does not work at all, any help how to concatenate string and variable like this: objeto1 objeto2 objeto3 .... and so on. Thx. Hey all, I have a simple example below showing how when I pass in the value of the value attribute of option node, and then use if operator to check whether parameter is a string or not, even though it's a string, it converts it to false boolean and triggers the else statement rather than calling a function: Code: <body> <select> <option value="createMsg">Add Message</option> <option value="removeMsg">Remove Message</option> </select> </body> Code: var menu = {
handleMenu : function(callback){
if(callback === "string"){
menu[callback]();
}
else {
console.log("Issue occurred")
}
},
createMsg : function(){
var content = document.createTextNode("Please give additional information."),
heading = document.createElement("h1");
heading.appendChild(content);
document.body.appendChild(heading);
},
removeMsg : function(){
}
}
document.getElementsByTagName('select')[0].onchange = function(){ menu.handleMenu(this.value)};
callback should be a string so why is it saying otherwise? Thanks for response I've been having problems getting my select option to change the options of another select option. I'm not much of a javacsript coder, so I'm at a lost. When I select the first option nothing appears in the second option. here's the javascript code: Code:
function createOption(OptionText, OptionValue){
var temp = document.captcha_form("option");
temp.innerHTML = OptionText;
temp.value = OptionValue;
return temp;
}
function valChange(){
var firstList = document.getElementById("emailaddress");
var secondList = document.getElementById("subject");
while(secondList.hasChildNodes())
secondList.removeChild(secondList.childNodes[0]);
switch(firstList.value){
case "1":{
secondList.appendChild(createOption("Report Site Browsing Issue", Report Site Browsing Issues));
secondList.appendChild(createOption("Report Page Errors", Report Page Errors));
secondList.appendChild(createOption("Other", Other));
break;
}
case "2":{
secondList.appendChild(createOption("Report Unauthorized Game", Report Unauthorized Game));
secondList.appendChild(createOption("Report Spam", Report Spam));
secondList.appendChild(createOption("Report Harassment", Report Harassment));
secondList.appendChild(createOption("Report Illegal Activities", Report Illegal Activities));
secondList.appendChild(createOption("Request Account Removal", Request Account Removal));
break;
}
// ....
default:{
secondList.appendChild(createOption("Please select from the first list", ""));
break;
}
}
}
window.onload = valChange;
this is the form code Code: <div class="mailto_form"> <form method="POST" id="captcha_form" name="captcha_form" action="../includes/mailform.php"> <div style="padding-bottom: 1em;">Choose Recipient: <select name="emailaddress" id="emailaddress" onchange="valChange();"> <option value=""></option> <option value="1">Webmaster</option> <option value="2">Admin</option> </select> </div> <div style="padding-bottom: 1em;">Subject: <br /><select name="subject" id="subject"> </div> <div style="padding-bottom: 1em;">From: <br /><input type="text" name="email" id="email" value=""> </div> <div style="padding-bottom: 1em;">Enter the text contained in the image into the text box: <br /><img src="../includes/captcha.php" /> <br /><input type="text" name="userpass" value=""> </div> <div style="padding-bottom: 1em;">Message: <br /><textarea name="message" id="message" rows="10" cols="60"><?php echo "</tex" . "tarea>"; ?> </div> <div style="padding-bottom: 1em;"><input name="submit" type="submit" value="Submit"> </div> </form> </div> Link to the page http://www.netgamegurus.com/contact/ Hey chaps, hope someone can help with this: I have a PHP form, with a couple of dynamic Select menus, which are populated from two SQL tables: // tbl_main_colour: Code: ID, NAME 1, Red 2, Blue 3, Green // tbl_shade_colour: Code: ID, NAME, FK_MAIN_COLOUR_ID 1, Light Red, 1 2, Dark Red, 1 3, Light Blue, 2 4, Dark Blue, 2 5, Light Green, 3 6, Dark Green, 3 What I'm after is something to filter the second select option, after the first select option has been chosen // Select 1: Code: Red // Select 2: Code: Light Red Dark Red I'm pretty sure this is possible, but not sure how to go about it, any help would be most appreciated. Hey Guys When a user changes the select list called "reason_code_master" I need the uodatecodes() function to update all the other select list with the id of "reason_codes" with the same . How can I do this. <select size='1' onchange="updatecodes()" name='reason_code_master'> <option value='' > - SET REASON - </option> <option value='BROKEN' >BROKEN</option> <option value='ENTERED' >ENTERED</option> <option value='SHORT' >SHORT</option> </select> <select size='1' name='reason_codes' id='reason_codes'> <option value='' > - SET REASON - </option> <option value='BROKEN' >BROKEN</option> <option value='ENTERED' >ENTERED</option> <option value='SHORT' >SHORT</option> </select> <select size='1' name='reason_codes' id='reason_codes'> <option value='' > - SET REASON - </option> <option value='BROKEN' >BROKEN</option> <option value='ENTERED' >ENTERED</option> <option value='SHORT' >SHORT</option> </select> <select size='1' name='reason_codes' id='reason_codes'> <option value='' > - SET REASON - </option> <option value='BROKEN' >BROKEN</option> <option value='ENTERED' >ENTERED</option> <option value='SHORT' >SHORT</option> </select> <select size='1' name='reason_codes' id='reason_codes'> <option value='' > - SET REASON - </option> <option value='BROKEN' >BROKEN</option> <option value='ENTERED' >ENTERED</option> <option value='SHORT' >SHORT</option> </select> Hi JS Experts, I am working on a class registration system that requires students to register for a main class (101, 102 or 103). The student is supposed to select one main course as well as provide a second choice in case the first is not available. I have two dropdown select fields to capture data 1) Choice -1: 101 / 102 / 103 ( Student needs to select one - Reading the classID from classes table) 2) Choice -2: 101 / 102 / 103 ( If student selects 101 in Choice-1 then the only classes available under Choice-2 should be 102 or 103). How can I accomplish the above? Further to this there are two fields on the form where I would like to auto populate based on what they have selected in Choice-1 and Choice-2. For Example: If a parent selects choice1: 101 the child Choice1 field should autopopulate with 100. If a parent selects Choice2: 201 the child Choice2 field should autopopulate with 200 Any help would be really appreciated. Thanks Vinny Hello, I am trying to make a simple code that has a selection list (with the choice fruit or veggie). When the user chooses fruit, the second list displays the options apple, orange, banana. When the user changes their choice to veggie, the second select list then contains carrot, corn, potatoes (and the apple, orange, banana disappear). I need some advice on how to do this Code: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>Untitled</title> </head> <body> <form name = "form1"> <fieldset> <legend>Fruit or Veggie</legend> <select name = "S1"> <option name = "fruit">Fruit </option> <option name = "veggie">Veggie</option> </select> <select name = "S2" </select> </fieldset> </form> <script language="JavaScript" type="text/javascript"> ??? </script> </body> </html> Ok so I'm making this form which when a selection is made in one box it will run through the javascript(function getMgmtHours), and update the div(mgmthours). Then another box shows up allowing another selection to be made which runs through the javascript(function getDays) and updates another div(mgmtdate). My problem is that when I use the second box to run through javascript, it overwrites what shows up in the first div (mgmthours) when it should be updating a different div (mgmtdate). Any ideas what I can do to get it update the relevant div and not overwrite the other one? Here is part of the javascript I have in my page head: Code: function getMgmtHours(str)
{
if (str=="")
{
document.getElementById("mgmthours").innerHTML="";
return;
}
if (window.XMLHttpRequest)
{
// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}
else
{// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
document.getElementById("mgmthours").innerHTML=xmlhttp.responseText;
}
}
xmlhttp.open("GET","getmgmthours.php?dist="+str,true);
xmlhttp.send();
}
function getDays(str)
{
if (str=="")
{
document.getElementById("mgmtdate").innerHTML="";
return;
}
if (window.XMLHttpRequest)
{
// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}
else
{// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
document.getElementById("mgmtdate").innerHTML=xmlhttp.responseText;
}
}
xmlhttp.open("GET","getdates.php?sunday="+str,true);
xmlhttp.send();
}
Here is the HTML/PHP portion being used: PHP Code: echo "<p>"; echo "Submit hours:"; echo "<form>"; echo "<select name='district' onchange='getMgmtHours(this.value)'>"; echo "<option value=''>Select a district:</option> <option value='1'>1</option> <option value='3'>3</option> <option value='4'>4</option>"; echo "</select>"; echo "</form>"; echo "</p>" echo "<p>"; echo "<form action='./hours.php' method='post' onSubmit='return checkMgmtHours'>"; echo "Weekending Day: "; echo "<select name='weekending' onchange='getDays(this.value)'>"; echo "<option value=''>Choose a Date:</option>"; while ($week < 32) { $nextsunday = strtotime("next Sunday"); if ($week > 0) { $timestamp = strtotime("-" . $week . " week", $nextsunday); } else { $timestamp = $nextsunday;} $weekending = date('M. d, Y', $timestamp); echo "<option value='" . $weekending . "'>" . $weekending . "</option>"; $week = $week + 1; } echo "</select>"; echo "<div id='mgmtdate' />"; echo "<div id='mgmthours' />"; echo "</p>"; Edit: Also, after getMgmtHours() runs, I can still use both getDays and getMgmtHours, howeer once I used getDays, I am no longer able to use getMgmtHours w/o refreshing the page. I have a select box that has ~7000 options, that based on a different dropdown select & input field, gets filtered to 0 - 300 entries. I have another select dropdown that has 13000+ options in total for all the ~7000 entries, but each entry may have 1 to 5 options of these 13000. Is there a way to change the options of the last select dropdown based on what the user chooses in the filtered select box? Currently the idea I'm having is to have the browser load all 13000+ items and filter out the ones that don't apply to the currently selected item, but I'm not sure what kind of lag the user would experience while the browser loads & filters through all these items. Any help would be appreciated. Thanks. I've got some directory list boxes on the site I'm working on. I made them big and fixed rather than drop-down so they're easier to use in this context. But I had to enable the "multiple" attribute to make that work. The site has no provision for multiple selections so it's a tad annoying when the search function selects more than one name in the list. It doesn't really affect the site's operation but it could be confusing to some people. Is there a way to make the listbox show multiple selections without allowing multiple selections? Thanks for any help. <select onchange="display.apply(this, this.value.split(','))" multiple="multiple" id="People" name="People" style="border-style: none; height:244px; width:220px; margin-bottom: 15px;"> <option>Loading</option> </select> I've got an idea for simplifying my code and avoid a bunch of switch functions but don't know how, though I assume it's possible. How do I write a function to change/insert only part of an img src? in other words something along the lines of if url contains: "/folder1/folder3/"; change this to: "/folder1/ folder2 /folder3/"; I'm trying to figure out how to split a url variable... I tried these two ways, with an alert to see my result, but I'm not getting anything. Suggestions? Code:
function() {
myURL = "http://www.test.com/folder1/folder2/someone"
var partsA = myURL.split("//");
var parts = partsA[1].split("/");
alert(parts[2]);
}
Code:
function() {
myURL = "http://www.test.com/folder1/folder2/someone"
var parts = myURL.split('/');
var result = parts[parts.length-2] + '/' + parts[parts.length-1];
alert(result);
}
Hi, I have youtube link saved as a variable with value: PHP Code: http://www.youtube.com/watch?v=oOzuBOefL8I&feature=topvideos And I need to get a part of this link which I could use later: The part would be PHP Code: oOzuBOefL8I It would be great to do it with javascript... Because I have url generated like this one: PHP Code: httpObject.open("GET", "../talpinimas.php?id=reklama&paveikslelis=" +document.getElementById('paveikslelis').value+"&pavadinimas=" +document.getElementById('pavadinimas').value+"&url1=" +document.getElementById('url1').value+"&url1name=" +document.getElementById('url1name').value+"&komentaras=" +document.getElementById('komentaras').value+"&nick=<?php echo $nick?>" , true); and I want to send just THE PART (oOzuBOefL8I) to my talpinimas.php page. If you haven't understood something or need more info ask... Thanks I got some updates on my progress... still no results. (quoting my previous thread) Quote: I need desperate help with a homework! Here's the task: First of all I need to define an array of 3 elements. Each element is associated with a different first name. Then I shall realize a first function to add a name in the table. The function takes as parameter the table previously created and return it containing an additional element whose value is the name that the visitor wants to add. I must use the dialog box prompt so that the user can specify the name he wishes to add in the table. I shall also perform a second function which will display the name that is included in the different array elements. This function will also take the table in parameters and proceed with setting the display name with a dialog box alert type that contains all of the name separated by ";". Here's what I've done so far: Code: <html>
<head>
<title>
Task #4
</title>
</head>
<body>
<script language="javascript">
function addName()
{
var names=new Array(3);
names[0]="John";
names[1]="Patrik";
names[2]="Jane";
document.open();
document.write(names[3].join());
document.close();
if(names==new Array);
{
prompt("What name do you want to add?"+"");
}
return addName
}
</script>
<noscript>
<h1>
You're browser doesn't support Javascript
</h1>
</noscript>
</body>
</html>
Updates: Code: <html>
<head>
<title>
Task #4
</title>
<script language="javascript">
function addName()
{
var names=new Array(3);
names[0]="John","Brian";
names[1]="Patrik","Gene";
names[2]="Jane","Sophie";
document.open();
document.write(names.join(";"));
document.close();
if(names==new Array);
{
var addToArray=prompt("What name do you want to add?","")
names.push(addToArray)
}
}
function displayNames(addName)
{
alert(addName);
}
</script>
<noscript>
<h1>
You're browser doesn't support Javascript
</h1>
</noscript>
</head>
<script language="javascript">
<body onLoad="displayNames(addName)">
</body>
</script>
</html>
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