|
JavaScript - Dynamically Disable Drop-down Menu Options Problem
My problem has to do with having more then two drop down menus and disabling selected items. In this example whenever anyone selects an option from either of the drop-down menus the opposing drop-down menu greys out the selection:
Code: <script type="text/javascript">
function updateSelect(changedSelect, selectId) {
var otherSelect = document.getElementById(selectId);
for (var i = 0; i < otherSelect.options.length; ++i) {
otherSelect.options[i].disabled = false;
}
if (changedSelect.selectedIndex == 0) {
return;
}
otherSelect.options[changedSelect.selectedIndex].disabled = true;
}
</script>
Code: <select id="subject1" name="indication_subject[]" onchange="updateSelect(this,'subject2');" > <option value="1">A</option> <option value="2">B</option> <option value="3">C</option> </select> <select id="subject2" name="indication_subject[]" onchange="updateSelect(this,'subject1');" > <option value="1">A</option> <option value="2">B</option> <option value="3">C</option> </select> The above code works perfect. My problem is extending this to even more drop-down menus. I'm not a javascript guy but my logic was thinking something like this: Code: ARRAY = "subject1, subject2, subject3"; <select id="subject1" name="indication_subject[]" onchange="updateSelect(this,'ARRAY');" > ...either an array to include multiple drop-down menus or what about something like this? Code: <select id="subject2" name="indication_subject[]" onchange="updateSelect(this,'subject1, subject2, subject3, subject4');" > Obviously I know my code solutions don't work, however, I'm hoping they can provide someone with clarity with respect to what I'm trying to accomplish. I sincerely would appreciate anyone's help on this. Similar TutorialsOkay, I'm having some trouble getting my head around how to do this.. Code: <select> <option value="A">A</option> <option value="B">B</option> <option value="C">C</option> </select> <select> <option value="Rhino">Rhino</option> <option value="Bird">Bird</option> <option value="Rooster">Rooster</option> </select> <select> <option value="0202A">Rhino - Text</option> <option value="0203A">Rhino - Text2</option> <option value="0204A">Bird - Text1</option> <option value="0205A">Bird - Text2</option> <option value="0202B">Rhino - Text</option> <option value="0204B">Rhino - Text2</option> <option value="0204C">Rooster - Text1</option> <option value="0205C">Rooster - Text2</option> <option value="0206C">Rooster - Text3</option> </select> So say we had those three drop-downs. I'm looking to make it so that second drop-down only has options corresponding to a relationship between the first and the third drop-down. Example - if you select A in the first drop-down you only see Rhino and Bird in the second drop-down. If you select B you will only see Rhino in the second drop-down. Lastly, if you select C you will only see Rooster in the second drop-down. Just can't figure this out. >.< Hi all, I have table in Javascript and it has addrow, deleterow, submit, and functions. when i click it automatically adds new row and it has select option to choose some of them for ex. in added two rows and one of drop down combox i chose Motherboard Asus and from other i chose Motherboard Gigabyte. So i need once i select the name from combobox, should not allow user to select same name in coming rows Here is my code. Thanks beforehands PHP Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html> <head><title>dinamik sheet</title> <script> var i=iteration; function addrow(){ var tbl = document.getElementById('sheet'); var iteration = tbl.rows.length; document.getElementById('count_rows').value = iteration; var row=tbl.insertRow(iteration); var cellLeft = row.insertCell(0); var textNode = document.createTextNode(iteration); cellLeft.appendChild(textNode); var cellRight = row.insertCell(1); var el = document.createElement('input'); el.type = 'text'; el.name = 'txtRow'+iteration; el.id = 'txtRow'+iteration; el.size = 15; el.value = '0'; el.onblur = sum; cellRight.appendChild(el); var cellRight = row.insertCell(2); var elaz = document.createElement('input'); elaz.type = 'text'; elaz.name = 'txtRowaz'+iteration; elaz.id = 'txtRowaz'+iteration; elaz.size = 20; elaz.value = '0'; elaz.onblur = sum; cellRight.appendChild(elaz); var cellRight1 = row.insertCell(3); var ela = document.createElement('input'); ela.type = 'text'; ela.name = 'txtRowe'+iteration; ela.id = 'txtRowe'+iteration; ela.size = 20; ela.value = '0'; ela.onblur = sum; cellRight1.appendChild(ela); var cellRightsel = row.insertCell(4); var sel = document.createElement('select'); sel.name = 'selRow' + iteration; sel.id = 'selRow' + iteration; sel.onchange = sum; sel.options[0] = new Option('MotherBoard ASUS', 'MotherBoard ASUS'); sel.options[1] = new Option('MotherBoard Gigabyte', 'MotherBoard Gigabyte'); sel.options[2] = new Option('MotherBoard MSI', 'MotherBoard MSI'); sel.options[3] = new Option('Graphiqcard ASUS', 'Graphiqcard ASUS'); sel.options[4] = new Option('GraphigCard ATI', 'GraphigCard ATI'); sel.options[5] = new Option('GraphigCard GefORCE', 'GraphigCard GefORCE'); cellRightsel.appendChild(sel); sum(); } function removeRowFromTable() { var tbl = document.getElementById('sheet'); var lastRow = tbl.rows.length; if (lastRow > 2) tbl.deleteRow(lastRow - 1); } function sum(){ var s1 = 0; var s2 = 0; var tbl=document.getElementById('sheet'); var iteration=tbl.rows.length-1; for(var i=1; i<=iteration; i++){//loop through table rows var el1 = document.getElementById('txtRow'+i);//Row's Income field var el2 = document.getElementById('selRow'+i);//Row's percentage menu var ela = document.getElementById('txtRowe'+i);//Row's Tax cell var elaz=document.getElementById('txtRowaz'+i); if(!el1 || !el2 || !ela||!elaz) continue; var txt = el1.value; if(txt != ( '' + Number(txt) )) continue; //reject non-numeric entries var tax = Number(txt) * Number(130); if(el2[el2.selectedIndex].value=="MotherBoard Gigabyte"){ var tax = Number(txt) * Number(150); } if(el2[el2.selectedIndex].value=="MotherBoard MSI"){ var tax = Number(txt) * Number(100); } if(el2[el2.selectedIndex].value=="Graphiqcard ASUS"){ var tax = Number(txt) * Number(85); } if(el2[el2.selectedIndex].value=="GraphigCard ATI"){ var tax = Number(txt) * Number(95); } if (el2[el2.selectedIndex].value=="GraphigCard ATI") { var tax = Number(txt) * Number(88); } ela.value = tax.toFixed(2); elaz.value=tax.toFixed(2)/Number(txt); if(isNaN(elaz.value)){ elaz.value=0; } s1 += Number(txt); s2 += tax; } var t1 = document.getElementById('total'); var t2 = document.getElementById('taxtotal'); if(t1){ t1.value = s1.toFixed(2); } if(t2){ t2.value = s2.toFixed(2); } } onload = function(){ addrow(); } </script> </head> <body> <form name="eval_edit" method="POST" action="part1.php?id=iteration-1"> <table align="center" width="75%"> <tr> <td align="center">Balance sheet</td></tr> <tr> <td align="center"> <table id="sheet" border="1"> <tr><td>object</td><td>Total amount</td><td>One ITEM Price</td><td name="amount">Total Item Price </td><td>Name</td></tr> </table> </td> </tr> <tr> <td align="center"> <input type="hidden" name="count_rows" id="count_rows" /> <input type="button" value="Add" onclick="addrow()" /> <input type="button" value="Remove" onclick="removeRowFromTable()" /> <input type="button" value="SUM" onClick="sum()"/> <input type="submit" value="Submit" /><br /> </td> </tr> <tr> <td align="left"> <input id="total" name="total" type="text"/>total amount of products<br /> <input id="taxtotal" name="taxtotal" type="text"/>total price of products </td> </tr> </table> </form> </body> </html> Hi Friends, I need to select browser option dynamically using javascript for handling cookies , i.e., in need select checkbox "override automatic cookie handling" checkbox dynamically. Kindly help me friends how to select this checkbox dynamically. Tools - -> Internet Options --> Privacy (Tab) --> Advance (Button) --> Override automatic cookie handling . Thanks in Advance, Siva. I've got 2 drop down boxes, dropdown1 and dropdown2, and i want certain options on dropdown2 to be greyed out or unavailable if certain selections are made in dropdown1. is this possible? and if so, how? thanks hey im newish to javascript. ive completely handwritten this script, based on a working drop down menu script i had. this new script is supposed to incorporate the menu 'rolling' down. this is based on pixel increment by time. problems with the code: doesnt work at all with ie, only FF can only open one menu item per refresh of page when you go to click on a menu sub-item the menu disappears as soon as your mouse leaves the first header link. didnt have any of these problems with the basic drop down menu this is based on. so heres the code: Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<style type="text/css">
div, a, ul, li, body, {padding:0;margin:0; text-decoration: none;}
a:visited {text-decoration: none;}
a:hover {text-decoration: underline;}
li {font-size: 15px;}
body{margin:0;}
#container {width:800px; margin: 0 auto; font-family:Tahoma, Geneva, sans-serif;}
.drop {overflow: hidden; width: 180px; height: 20px; float: left; background: #f1f1f1; display: block; list-style:none; padding: 5px 10px; opacity: 0.9; filter: alpha(opacity=90); border-bottom: 1px solid blue;margin: 0;}
.menuItemHolder {width: 200px; height: 20px; float:left;}
.topLi {margin-bottom: 10px; text-align: center; font-size: 16px;}
.relDiv {border: 1px solid green; background: blue; color: #fff;}
#nav-container {height: 30px; margin: 0;}
/*THIS BIT SHOULD BE UNCOVERED IF USING 6 MENU ITEMS, (instead of 5)*/
.menuItemHolder {width: 160px;}
.drop {width: 140px;}
</style>
<script type="text/javascript">
height=20; //set initial height of top menu links
var timer_is_on=0; //set timer value to 0 (off)
function dropper(dropN)
{
menu = document.getElementById(dropN); //select menu to open
var links=menu.innerHTML; //select link holder
numLinks=(links.split("</li>").length-1); //calculate number of links in each link holder
height++; //increase value of height by '1' each time
maxHeight=10+(numLinks*18); //calculate height of expanded Li holder
if (height<=maxHeight) //code to run if menu is fully extended
{
menu.style.height=height+"px"; //reformat for pixel declaration
menu.style.position = "absolute"; //change menu to absolutely positioned
setTimeout("dropper("+dropN+")",10); //call function from within itself after 10 miliseconds
}
else
{
}
}
function doTimer(dropN)
{
if (!timer_is_on) //check if timer is set, if not, set it and redirect
{
timer_is_on=1;
dropper(dropN); //redirect to the function to bring the menu down
}
}
function backup(dropN)
{
menu = document.getElementById(dropN); //select menu to close
menu.style.height = '20px'; //change to closed height (height of first link only)
height=20; //change height variable back to 20
var timer_is_on=0; //reset time set variable to 0
}
</script>
</head>
<body>
<div id="nav-container">
<div class="menuItemHolder">
<ul id="1" class="drop" onMouseOver="doTimer('1');" onMouseOut="backup('1');">
<li class="topLi"><a href="#">Top bit</a></li>
<li><a href="#">link 1</a></li>
<li><a href="#">link 1</a></li>
<li><a href="#">link 1</a></li>
<li><a href="#">link 1</a></li>
<li><a href="#">link 1</a></li>
<li><a href="#">link 1</a></li>
</ul>
</div>
<div class="menuItemHolder">
<ul id="2" class="drop" onMouseOver="doTimer('2');" onMouseOut="backup('2');">
<li class="topLi"><a href="#" class="topLi">Longer Top bit</a></li>
<li><a href="#">link 2</a></li>
<li><a href="#">link 2</a></li>
<li><a href="#">link 2</a></li>
</ul>
</div>
</body>
</html>
any help much appreciated Hi there. I recently put a news ticker on my work's homepage and it works fine. The only problem is that the drop-down menus above it are appearing behind the news ticker. I tried trouble-shooting for the last couple days to no avail. I am hoping someone might be able to give me some hints or a way to resolve this. Here is a link to the beta page, and below is the newsticker javascript I used. This is my first time posting here and I'm really new to the world of scripting so please let me know if there is anything else you might need to help me crack this thing. Thanks to everyone in advance. Code: // Create namespace
if (at == undefined) var at = {};
if (at.bartelme == undefined) at.bartelme = {};
// Newsticker Class
at.bartelme.newsticker = Class.create();
at.bartelme.newsticker.prototype = {
initialize: function()
{
// Get elements
this.interval = 10000;
this.container = $("newsticker");
this.messages = $A(this.container.getElementsByTagName("li"));
this.number_of_messages = this.messages.length;
if (this.number_of_messages == 0)
{
this.showError();
return false;
}
this.current_message = 0;
this.previous_message = null;
// Create toggle button
this.toggle_button = document.createElement("a");
this.toggle_button.href = "#";
this.toggle_button.id = "togglenewsticker";
this.toggle_button.innerHTML = "Toggle";
Event.observe(this.toggle_button, "click", this.toggle.bindAsEventListener(this), false);
this.hideMessages();
this.showMessage();
// Install timer
this.timer = setInterval(this.showMessage.bind(this), this.interval);
},
showMessage: function()
{
Effect.Appear(this.messages[this.current_message]);
setTimeout(this.fadeMessage.bind(this), this.interval-2000);
if (this.current_message < this.number_of_messages-1)
{
this.previous_message = this.current_message;
this.current_message = this.current_message + 1;
} else {
this.current_message = 0;
this.previous_message = this.number_of_messages - 1;
}
},
fadeMessage: function()
{
Effect.Fade(this.messages[this.previous_message]);
},
hideMessages: function()
{
this.messages.each(function(message)
{
Element.hide(message);
})
},
toggle: function()
{
Effect.BlindUp(this.container, 1000);
},
showError: function()
{
if (this.container.getElementsByTagName("ul").length == 0)
{
this.list = document.createElement("ul");
this.container.appendChild(this.list);
} else {
this.list = this.container.getElementsByTagName("ul")[0];
}
this.errorMessage = document.createElement("li");
this.errorMessage.className = "error";
this.errorMessage.innerHTML = "Could not retrieve data";
this.list.appendChild(this.errorMessage);
}
}
Event.observe(window, "load", function(){new at.bartelme.newsticker()}, false);
Im coding with AnyLink JS drop down menu and I am running into a annoying Java Script Problem or CSS not sure. Here is the site ip http://96.0.177.61 if you view it in FF it looks fine but in IE 8 you will find a space about 5 - 10px wide straight across the bottom of the top Nav. I cant figure out why that is happening can someone please help Thanks The code below is a download form,, the number after the P= are the index idents for each file to be downloaded.. The destination_folder is set for C:\temp as default location. the code below works as needed for one file,,however i need to create a drop down list which will show all file names,and automatically throw the right ident for that file after the P=. sounds simple enough but there are other sections that are tied to this form so the solution has to use the CFForm_1(this) else i'll have to redo all the other sections as well. as well as javascript if anyone has a quick and clean way to do this i'd be very appreciative. i've pulled my hair out trying to find examples using this config and none are even close..or don't have a drop down menu Code: <form name="CFForm_1" action="http://www.XXX.cfm?p=6D6F615CC&rt=2&st=2" method="POST" onsubmit="CFForm_1(this)"> <input name="destination_folder" id="destination_folder" type="text" value="C:\Temp" maxlength="200" size="60" /> <input type="Submit" value="Resume"> thanks in advance, Rick I've been running into a brick wall on this problem, and have gone over my html, css and PHP dozens of times, so I'm thinking it's a Javascript issue (where my skills are lacking). I'm using a drop-down menu script that I got he http://www.php-development.ru/javascripts/dropdown.php, which I have modified slightly to eliminate timeout and change styles on closing the menu (by clicking on it). It works fine everywhere except in IE 6 and 7. In IE 7, the menu appears where it should, but looks blank. If you leave the sub-menu open and hover over another link, the menu appears as it should. Both drop-down menus do this. In IE6, the problem is similar, except that only the bottom border of the menu items appear, not the whole link. The page can be found he http://www.georgekoury.com/index_test.php, and the only options with drop-down are "Individual Insurance" and "Group Insurance". I realize the code isn't entirely compliant, I inherited this code from another programmer and I'm trying to avoid having to rewrite the whole structure. I'm not sure what code you may need me to post, so if more information is needed, please let me know and I'll provide it. Hi, I'm trying to integrate an address finder (http://www.craftyclicks.co.uk/) into my shopping cart (OsCommerce). I can get it to work but I need to add my own functionality. I'm not very experienced with JavaScript and my head has entered an infinite loop by now. The problem is that the address finder script can change the selected country in a drop-down list depending on the postcode entered by the user (using the onblur event handler). What I need it to do is to remove all other countries depending on the postcode. I can get it to remove all other countries but how do i return to the original list of countries when the postcode is changed again? Once all other counties are removed, the drop-down list will obviously only have one option left... I guess the question is also how does a function remember what it has done before, when it is called again? I have written this short test script as it is easier to work with than the craftyclicks oscommerce contribution: Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>HTML Template</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta name="description" content="" />
<meta name="keywords" content="" />
<script type="text/javascript">
//<![CDATA[
function store(element) {
// store values
var cl = element;
var text_list = new Array();
var value_list = new Array();
var length = cl.length;
for (var foo=0; foo<length; foo++) {
text_list[foo] = cl.options[foo].text;
value_list[foo] = cl.options[foo].value;
alert("text array " + foo + " " + text_list[foo]);
alert("value array " + foo + " " + value_list[foo]);
}
populate(cl, text_list, value_list);
}
function populate(element, text, value) {
// populate options with previously stored values
var cl = element;
var length = cl.length;
cl.options.length=0;
for (var bar=0; bar<length; bar++) {
cl.options[bar]= new Option(text[bar], value[bar], false, false);
}
}
function crafty_set_country(code) {
var cl = document.getElementById('select');
store(cl);
for (var i=0; i<cl.length; i++) {
if (cl.options[i].value == code) {
alert(cl.options[i].value + " found");
var value = cl.options[i].value;
var text = cl.options[i].text;
cl.options.length=0;
cl.options[0]=new Option(text, value, true, true);
/*
for (var j=0; j<cl.length; j++) {
alert("second loop " + cl.options[j].text);
if (cl.options[i].value != code) {
cl.options[j]
}
}
*/
} else {
alert(cl.options[i].value);
}
}
}
//]]>
</script>
</head>
<body>
<form>
<select id="select">
<option value="10">ten</option>
<option value="20">twenty</option>
<option value="30">thirty</option>
<option value="40">fourty</option>
<option value="50">fifty</option>
<option value="60">sixty</option>
</select>
<input type="button" value="remove" name="button" onClick="crafty_set_country(50)">
<input type="button" value="repopulate" name="button" onClick="crafty_set_country(100)">
</form>
</body>
</html>
Many thanks! Martin Hi there. I came across this forum while searching for an example of how to do something in Javascript, and found the post helpful, but didn't quite answer my query completely... It was a very old thread, few years old, though so I thought best not to revive it from the murky depths Basically, I very rarely use JavaScript... in fact, I rarely do any programming at all, but I'm trying to build a basic site at the moment, and I'm wanting to disable/enable a text box based on the value of a drop down menu... The idea behind it is that I have a sub title, and in the admin panel, I want to be able to set whether the sub title is picked randomly from a database, or whether it chooses one, and only one... So in the admin panel, I've got a page that has a drop down menu with two options. Static, and Random. Below this, I've got a text box called Static ID... In this text box, the administrator would insert the database row ID for the specific sub title they want... Obviously this Static ID field only applies if you select a Static sub title, rather than a Random sub title... So what I want to happen is for the text box to be disabled if the drop down menu is selected as Random... and then enabled if the drop down is selected as Static... So I came across the following script on an old post as mentioned earlier: Code: <script type = "text/javascript">
function enableTextbox() {
if (document.getElementById("dropdown").value == "New") {
document.getElementById("txt1").disabled = false;
}
else {
document.getElementById("txt1").disabled = true;
}
}
</script>
<form action="adm_subtitle.php" method="post">
Static or Random?
<select name="staticrand" id"staticrand" onchange="enableTextbox()">
<option value="static">Static</option>
<option value="rand selected="selected">Random</option>
</select>
Static ID
<input type="text" value="0" name="staticid" id="staticid" maxlength="3" disabled="true" />
<input type="submit" name="submitsubtitleset" value="Submit" />
</form>
With a bit of other formatting that isn't necessary for this example... Now, this works if I change the drop down box to Static, it'll enable the text box, and then disable the text box if I select Random... The problem I've got though, is with a bit of PHP code mixed in with the form, it will check the current value of the setting, and then choose which drop down menu to pick as selected... so if in the backend config it's set to "rand", it'll automatically pick Random when the page loads, and if it's set to "static", it'll automatically pick Static when it loads the page... If it's already set to Static, the page loads and the text box is disabled. I have to select Random from the drop down list, and then select Static again to enable the box... Is there anyway that I can enable it if Static is already selected when the page loads and then disable it when Random is selected, but still keep the functionality that it is already disabled when the Random option is selected on load? I hope that makes sense... Cheers, Mike. all i have to do is the image to change automatically based on the option you selected from the drop down list. here is the code, any help is appreciable. thanks in advance. <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <style type="text/css"> img{ height:95px; width:95px; display:block; margin-top:10px; } #caption{ font-family:Verdana,tahoma,arial; font-size:8pt; text-align:left; display:block; width:250px; } </style> <script type="text/javascript"> window.onload=function() { var caption=['Default Image Caption', 'begonia', 'daffodils', 'mixture', 'natural', 'purple', 'red flower', 'sunflower', 'tulip', 'two flowers'], // This will be your images caption bp='..\images', //base url of your images imgnum=9, //Number of your images. This should match on your comboboxes options. thumb=document.getElementById('thumb'), //id of your image that will be changing description=document.getElementById('caption'), //id of your caption combobox=document.getElementById('selection'); // id of your combobox. combobox.onchange=function() { thumb.src=bp+'Picture'+this.value+'.jpg'; description.innerHTML=caption[this.value]; } } </script> </head> <body> <label>Please Change the pictu </label> <select id="selection"> <option>Change Picture</option> <option value="1">begonia</option> <option value="2">daffodils</option> <option value="3">mixture</option> <option value="4">natural</option> <option value="5">purple</option> <option value="6">red flower</option> <option value="7">sunflower</option> <option value="8">tulip</option> <option value="9">two flowers</option> </select> <br> <img src="..\images" alt="mypic" id="thumb"> <span id="caption">Caption for the default Image</span> </body> </html> thanks again I know how to edit the CSS, and minute parts of the JavaScript code (for example; speed of the drop). The problem is, I had a massive amount of help making the Javascript side of the menu, and do not know how to edit it... I want the rules to still apply, where only one can be expanded at a time (one of the first drops, and then only one of the sub-drops). I noticed in the code, I can edit it so there can be more than one drop, but that would mean, the whole menu could be expanded Also, I want my sub-drops. to have different span colour than the main drop. but trhe links and such, (everything else about it) can be the same.... My live demo is here! Thank you for any help and/or advice in advance, Best Regards, Tim *Edit: I thread title should probably be "Initialize indices..."* I've done quite a bit of research but couldn't find what I need to know so here I am. I have some javascript generated by php that reads a configuration file to add options to a select menu. This is somewhat irrelevant but... these options are removed from the menu when clicked and data related to the option is shown on the page... and the option gets re-added when the data is closed. I need the option to go back in the correct place/order in the select menu... which wouldn't be a problem if I could initialize the indices of the menu's options. They need to be initialized because when the page is created, saved settings are read and certain options are not shown in the list because they may already be shown according to the settings... meaning... since browsers automatically increment the indices of the options by 1 (starting at 0), if data is closed that was initially open and therefore not in the select menu at first... the key/index associated with that data will likely not match the correct menu order. Code: <script type="text/javascript">
function addOptionToSelect(selectID,index,offset,val,txt) {
var elSel = document.getElementById(selectID);
elSel.options[index+offset].value = val;
elSel.options[index+offset].text = txt;
}
function addLoadEvent(func) {
var oldonload = window.onload;
if (typeof window.onload != 'function') {
window.onload = func;
} else {
window.onload = function() {
if (oldonload) {
oldonload();
}
func();
}
}
}
<?php
foreach ($props as $k => $prop) {
if (!in_array($prop, $_SESSION['crProps'])) {
?>
addLoadEvent(addOptionToSelect('propertySelect',<?php echo $k; ?>,1,'?p=<?php echo $prop; ?>&k=<?php echo $k; ?>','<?php echo $prop; ?>'));
<?php
}
}
?>
</script>
For example, suppose I have the following potential data sets: a,b,c,d,e,f In the config file that helps create the page, suppose it is something like: <Default>0:a|2:c|3:d</Default> (FYI: I've designed it so that the data set names/options are separated by the pipe character ("|") and their corresponding index is the number to the left of the colon.) Then the select menu that is initially generated would be something like: (Every other data set name except for what is already open by default.) <select id="bleh"> <option value="b">b <option value="e">e <option value="f">f </select> And by default, browsers would assign the indices like so: (skipping getElementById and all that...) select.options[0].value = b select.options[1].value = e select.options[2].value = f Whereas, I need it to be initialized like this: select.options[1].value = b select.options[4].value = e select.options[5].value = f So that when the data sets initially open are closed (a, c, or d)... they get put in the correct position in the list. I just thought of something... it's a little inefficient (OCD lol) but it should work and at worst would only cost a couple of milliseconds of processing time. A solution to this problem might be to load the menu with all options so that their indices are correct... and remove the defaults afterward. I'll try it. Hi! I have the following javascript and accompanying html but the i keep getting the error: Unable to get value of the property 'options': object is null or undefined pointing to this line of the code " $thisSelectedValue = $formField.options[ $formField.selectedIndex ].value;" Can someone help me please... thanks in advance. Javascript Code: <script type="text/javascript">
$allValues = new Array();
$allValues[0] = 'Choose One';
$allValues[1] = 'A1';
$allValues[2] = 'A2';
$allValues[3] = 'A3';
$allValues[4] = 'A4';
$allValues[5] = 'A5';
function stripDupelicateValues(inElementId)
{
// get current list of all selected values
$selectedValues = new Array();
for( $position in $allValues )
{
if( $position != 0 )
{
$formField = eval( 'document.crewchange.emp_' + $position );
// preserve our selected values
$thisSelectedValue = $formField.options[ $formField.selectedIndex ].value;
$selectedValues[$thisSelectedValue] = true;
}
}
for( $position in $allValues )
{
if( $position != 0 )
{
$formField = eval( 'document.crewchange.emp_' + $position );
// preserve our selected values
$thisSelectedValue = $formField.options[ $formField.selectedIndex ].value;
// wipe out the previous choices
$formField.options.length = 0;
// create default option
$formField.options[0] = new Option( $allValues[0], 0 );
for( $optionValue in $allValues )
{
// add each of our non selected values
if( $selectedValues[$optionValue] != true )
{
$formField.options[$formField.options.length] = new Option( $allValues[$optionValue], $optionValue );
}
// create the option for our selected value
else if( $thisSelectedValue == $optionValue )
{
$index = $formField.options.length;
if( $optionValue != 0 )
{
$formField.options[$index] = new Option( $allValues[$optionValue], $optionValue );
$formField.options[$index].selected = true;
}
}
}
}
}
}
</script>
Html Code: <form action="cc2.php" method="post" name="cc"> <select name='emp[]' id='emp_1' onChange='stripDupelicateValues(this.id)'> <option>Choose One</option> <option value='1'>A1</option> <option value='2'>A2</option> <option value='3'>A3</option> <option value='4'>A4</option> <option value='5'>A5</option> </select> </form> Error Msg Code: Message: Unable to get value of the property 'options': object is null or undefined Hello everyone! I have a select (combo box) element that gets filled with items when selected item changed in another one (master combo box). It works in Chrome, FireFox but not in IE (all latest browser versions). How do I populate the items in the child combo box: - ajax call of a PHP script - that returns items for the combo box: echo '<option value="' . $id . '">' . $name . '</option>'; - setting innerHTML attribute of the child combo box to a value that gets returned by the ajax call: document.forms['parametersForm'].elements['stationId'].innerHTML = html; Do I need to return JSON object (or XML) by the PHP script and programically add items (in JavaScript) in the ajax callback or is there an alternative? Obviously building DOM with echoing PHP result doesn't work well in IE. Thanks for your future help! Regards Hi Everyone, I want to create some web pages in asp.net on which I want to avoid the user to refresh the page. I have disabled the refresh options using key board event which are as follows: 1) F5 2) Ctrl + F5 3) Ctrl + R But I want to avoid user clicking on the Refresh Button of the browser. So please help me how can we disable the Browser Refresh button/menu using Javascript ? Thanks & regards, Anthony D'souza. Hi Everyone, I have a small doubt in jsp coding..I want to disable certain links on user login.These links come under a menu list. Clarifying more on this..I have created a web application which has got a login page..After login it redirects me to my home page..now when an administrator logs in he/she should be able to view all links on the menu list whereas when an user logs in he/she should only view a certain number of links based on his/her privileges..how can i write this code. Can anyone help me?? Its really really urgent!!!!!!!!!! please................ Hello, I'm very new to javascript and am probably dabbling in stuff that I shouldn't if I am new to it. Nonetheless I've exhausted my resources and am seeking some answers from people who know what they're talking about. I've got this XML file: Quote: <?xml version="1.0" encoding="utf-8"?> <Menu> <Section> <Title>Product Information</Title> <Topic url="howto.html">How to use This Product</Topic> <Topic url="product.html">Product Overview</Topic> <Topic url="sysreq.html">System Requirements</Topic> </Section> ..... </Menu> There's more data than that but for brevity that's the way it's constructed and repeats with several Titles and Topics. Here's the JS i'm using to build a dynamic menu. The goal is to pick up the data and build an Accordion menu out of it: Quote: if (window.XMLHttpRequest) { xhttp=new XMLHttpRequest(); //create ajax var } else { xhttp=new ActiveXObject("Microsoft.XMLHTTP"); //IE } xhttp.open("GET","menu.xml",false); xhttp.send(""); xmlDoc=xhttp.responseXML; document.write("<div class='acc'>"); var x=xmlDoc.getElementsByTagName("Section"); for (i=0;i<x.length;i++) { document.write("<dt>"); document.write("<a href='#'>" + x[i].getElementsByTagName("Title")[0].childNodes[0].nodeValue + "</a></dt>"); document.write("<dd><ul>"); var y=xmlDoc.getElementsByTagName("Topic")[0].childNodes[0]; for (foo=0;foo<x.length;foo++) { document.write("<li class='acc_item'><a href='#'>" + x[i].getElementsByTagName("Topic")[0].childNodes[0].nodeValue + "</a></li>"); } document.write("</ul></dd>"); } document.write("</div>"); It creates the menu correctly... to a point. It has the correct styling, the accordion works perfectly, it has the correct Titles in the correct places, but when I "expand" one of the Titles it lists the first topic only, and lists it 5 times (the same amount of Titles I have). It then repeats this for every section. Example: Product Information How to Use This Product How to Use This Product How to Use This Product How to Use This Product How to Use This Product I'm not very confident in the syntax, or what it is exactly doing. Any guidance would be very appreciated. Please keep in mind I'm very new. Thanks! ? how would i make it for a menu so you could press it and it would go down to click on a link.
|
|||||||