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JavaScript - Chained Selects
Hi there,
I am new to Java Script but had to delve into it to create the options for a form I wish to create. I downloaded chainedseletmenu from the following; http://www.dynamicdrive.com/dynamici...menu/index.htm I have the script working, so that you select a first option and a new box appears, then you select the next option and an aditional box appears and so on... This is fine, but I wish to only make additional selection boxes appear if certain options from the drop down lists are selected, but not for others. Also, I wish for users of my forms to be able to add options that are not yet available, I will give an example, lets say cars; if a user selects a make from the list, eg "Honda", a drop down selection list apears, the user then has the option to choose the "Type" of Honda, eg "Prelude", "Civic", "NSR" etc. I would like to be able to add an additional here; = "Not listed". When the "Not listed" is clicked, I would like to give my users the choice to enter the type (in this example, it could be "CRX") into an auto-appearing text box, after form submission, this could then be added the existing selection list for future users. I am aware that this requires use of a database and conection to tit, but for a start, can anyone guide me in the right direction, or does anyone have examples of such code that I can study and get an idea of what to do? This is for a non-profit educational site that I am trying to create for my learners! So would apprieciate any help I can get! Kind regards, Luke Similar TutorialsHi I wanna to have two select boxes, one of them will contain a list of provinces, and on the other I wanna have a list of cities, but based on selected province. When province selects, cities select box must be changed, too. I don't wanna use AJAX for this purpose, as the server is already too busy and I don't like to disturb it more. So if anyone can provide a solution, just by Javascript and not with AJAX, I would be appreciate it. Cheers! Hi! I'm using this javascript and php/MySQL: http://www.dynamicdrive.com/dynamici...ects/index.htm When I make a selection in all 3 lists I have a button that saves the selections in my MySQL database, like this: set1, Toyota, Cars, Camry Then I want to be able to select set1 in a list and press an "Edit" button that retrieves these 3 selections and auto selects them in the list. How is this possible? Thanks in advance Vigour I am trying to create 2 different drop down menus which are chained. First drop down menu: options 1, 2, 3, and 4 Second drop down menu: options 1, 2, 3 and 4 However for the first drop down menu, if you choose the number then that number cannot be selected again on the second drop down menu. So if i pick 4 on the first drop down. then only 1, 2, and 3 should show up on the second drop down OR if you pick 4 on the second drop down it gives you an error saying you selected that value. Here is the complicated part that I cannot figure out. I want each drop down menus on two different pages and not on the same page. So after you select the submit button on the first drop down it should go to another page with the second drop down.. Has anyone seen this before. if you can give me some tips or show me how its done or even a webpage that has already implemented this i would appreciate it. Thank you! hey just wondering if anyone could help me with a problem im having with this menu for a website i got a chained menu javascript downloaded and all the data entered for it it will work in firefox but wont in internet explorer and i just dont understand why http://www.jomcfall97.talktalk.net/index1.html its the menu on the right hand side this is the error message Message: Object doesn't support this property or method Line: 247 Char: 5 Code: 0 URI: http://www.jomcfall97.talktalk.net/chainedmenu.js Here are lines 244 - 248 function initListGroup(n) { var _content=cs_findContent(n), count=0; if (_content!=null) { content=new cs_contentOBJ("cs_"+n,_content.menu); cs_content[cs_content.length]=content; and heres the full chainedmenu.js Code: var _disable_empty_list=false;
var _hide_empty_list=false;
var onclickaction="alert"
function goListGroup(){
for (i=arguments.length-1;i>=0; i--){
if (arguments[i].selectedIndex!=-1){
var selectedOptionvalue=arguments[i].options[arguments[i].selectedIndex].value
if (selectedOptionvalue!=""){
if (onclickaction=="alert")
alert(selectedOptionvalue)
else if (newwindow==1)
window.open(selectedOptionvalue)
else
window.location=selectedOptionvalue
break
}
}
}
}
if (typeof(disable_empty_list)=="undefined") { disable_empty_list=_disable_empty_list; }
if (typeof(hide_empty_list)=="undefined") { hide_empty_list=_hide_empty_list; }
var cs_goodContent=true, cs_M="M", cs_L="L", cs_curTop=null, cs_curSub=null;
function cs_findOBJ(obj,n) {
for (var i=0; i<obj.length; i++) {
if (obj[i].name==n) { return obj[i]; }
}
return null;
}
function cs_findContent(n) { return cs_findOBJ(cs_content,n); }
function cs_findM(m,n) {
if (m.name==n) { return m; }
var sm=null;
for (var i=0; i<m.items.length; i++) {
if (m.items[i].type==cs_M) {
sm=cs_findM(m.items[i],n);
if (sm!=null) { break; }
}
}
return sm;
}
function cs_findMenu(n) { return (cs_curSub!=null && cs_curSub.name==n)?cs_curSub:cs_findM(cs_curTop,n); }
function cs_contentOBJ(n,obj){ this.name=n; this.menu=obj; this.lists=new Array(); this.cookie=""; }; cs_content=new Array();
function cs_topmenuOBJ(tm) { this.name=tm; this.items=new Array(); this.df=0; this.addM=cs_addM; this.addL=cs_addL; }
function cs_submenuOBJ(dis,link,sub) {
this.name=sub;
this.type=cs_M; this.dis=dis; this.link=link; this.df=0;
var x=cs_findMenu(sub);
this.items=x==null?new Array():x.items;
this.addM=cs_addM; this.addL=cs_addL;
}
function cs_linkOBJ(dis,link) { this.type=cs_L; this.dis=dis; this.link=link; }
function cs_addM(dis,link,sub) { this.items[this.items.length]=new cs_submenuOBJ(dis,link,sub); }
function cs_addL(dis,link) { this.items[this.items.length]=new cs_linkOBJ(dis,link); }
function cs_showMsg(msg) { window.status=msg; }
function cs_badContent(n) { cs_goodContent=false; cs_showMsg("["+n+"] Not Found."); }
function cs_optionOBJ(text,value) { this.text=text; this.value=value; }
function cs_emptyList(list) { for (var i=list.options.length-1; i>=0; i--) { list.options[i]=null; } }
function cs_refreshList(list,opt,df) {
cs_emptyList(list);
for (var i=0; i<opt.length; i++) {
list.options[i]=new Option(opt[i].text, opt[i].value);
}
if (opt.length>0) {
list.selectedIndex=df;
}
}
function cs_getOptions(menu) {
var opt=new Array();
for (var i=0; i<menu.items.length; i++) {
opt[i]=new cs_optionOBJ(menu.items[i].dis, menu.items[i].link);
}
return opt;
}
function cs_updateListGroup(content,idx,sidx,mode) {
var i=0, curItem=null, menu=content.menu;
while (i<idx) {
menu=menu.items[content.lists[i++].selectedIndex];
}
if (menu.items[sidx].type==cs_M && idx<content.lists.length-1) {
var df=cs_getIdx(mode,content.cookie,idx+1,menu.items[sidx].df);
cs_refreshList(content.lists[idx+1], cs_getOptions(menu.items[sidx]), df);
if (content.cookie) {
cs_setCookie(content.cookie+"_"+(idx+1),df);
}
if (idx+1<content.lists.length) {
if (disable_empty_list) {
content.lists[idx+1].disabled=false;
}
if (hide_empty_list) {
content.lists[idx+1].style.display="";
}
cs_updateListGroup(content,idx+1,df,mode);
}
}
else {
for (var s=idx+1; s<content.lists.length; s++) {
cs_emptyList(content.lists[s]);
if (disable_empty_list) {
content.lists[s].disabled=true;
}
if (hide_empty_list) {
content.lists[s].style.display="none";
}
if (content.cookie) {
cs_setCookie(content.cookie+"_"+s,"");
}
}
}
}
function cs_initListGroup(content,mode) {
var df=cs_getIdx(mode,content.cookie,0,content.menu.df);
cs_refreshList(content.lists[0], cs_getOptions(content.menu), df);
if (content.cookie) {
cs_setCookie(content.cookie+"_"+0,df);
}
cs_updateListGroup(content,0,df,mode);
}
function cs_updateList() {
var content=this.content;
for (var i=0; i<content.lists.length; i++) {
if (content.lists[i]==this) {
if (content.cookie) {
cs_setCookie(content.cookie+"_"+i,this.selectedIndex);
}
if (i<content.lists.length-1) {
cs_updateListGroup(content,i,this.selectedIndex,"");
}
}
}
}
function cs_getIdx(mode,name,idx,df) {
if (mode) {
var cs_idx=cs_getCookie(name+"_"+idx);
if (cs_idx!="") {
df=parseInt(cs_idx);
}
}
return df;
}
function _setCookie(name, value) {
document.cookie=name+"="+value;
}
function cs_setCookie(name, value) {
setTimeout("_setCookie('"+name+"','"+value+"')",0);
}
function cs_getCookie(name) {
var cookieRE=new RegExp(name+"=([^;]+)");
if (document.cookie.search(cookieRE)!=-1) {
return RegExp.$1;
}
else {
return "";
}
}
// ----
function addListGroup(n,tm) {
if (cs_goodContent) {
cs_curTop=new cs_topmenuOBJ(tm); cs_curSub=null;
var c=cs_findContent(n);
if (c==null) {
cs_content[cs_content.length]=new cs_contentOBJ(n,cs_curTop);
}
else {
delete(c.menu); c.menu=cs_curTop;
}
}
}
function addList(n,dis,link,sub,df) {
if (cs_goodContent) {
cs_curSub=cs_findMenu(n);
if (cs_curSub!=null) {
cs_curSub.addM(dis,link||"",sub);
if (typeof(df)!="undefined") { cs_curSub.df=cs_curSub.items.length-1; }
}
else {
cs_badContent(n);
}
}
}
function addOption(n,dis,link,df) {
if (cs_goodContent) {
cs_curSub=cs_findMenu(n);
if (cs_curSub!=null) {
cs_curSub.addL(dis,link||"");
if (typeof(df)!="undefined") { cs_curSub.df=cs_curSub.items.length-1; }
}
else {
cs_badContent(n);
}
}
}
function initListGroup(n) {
var _content=cs_findContent(n), count=0;
if (_content!=null) {
content=new cs_contentOBJ("cs_"+n,_content.menu);
cs_content[cs_content.length]=content;
for (var i=1; i<initListGroup.arguments.length; i++) {
if (typeof(arguments[i])=="object" && arguments[i].tagName && arguments[i].tagName=="SELECT") {
content.lists[count]=arguments[i];
arguments[i].onchange=cs_updateList;
arguments[i].content=content; arguments[i].idx=count++;
}
}
if (content.lists.length>0) {
cs_initListGroup(content,content.cookie);
}
}
}
function resetListGroup(n) {
var content=cs_findContent("cs_"+n);
if (content!=null && content.lists.length>0) {
cs_initListGroup(content,"");
}
}
any help appreciated as ive just come to a standstill over this thanks Hi I found this code from here http://www.dynamicdrive.com/forums/s...ad.php?t=35776 And cant seem to get it to work. I want to show 2 drop downs and then a hidden div with the answer. 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>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js"></script>
<script type="text/javascript" src="scripts/chainedmenu.js"></script>
<script type="text/javascript" src="scripts/config2.js"></script>
<script type="text/javascript">
window.onload=function(){
var lastDiv = "";
document.getElementById('secondlevel').onchange=function(){
if (lastDiv)
document.getElementById(lastDiv).className = "hiddenDiv";
//if value of the box is not nothing and an object with that name exists, then change the class
if (this.value && document.getElementById(this.value)) {
document.getElementById(this.value).className = "visibleDiv";
lastDiv = this.value;}}}
</script>
<style type="text/css">
.hiddenDiv {
display:none;
}
</style>
</head>
<body onLoad="initListGroup('chainedmenu', document.listmenu0.firstlevel, document.listmenu0.secondlevel, 'saveit'); ">
<form name="listmenu0">
<div class="black1 bold">1. Select Product Range</div>
<div class="selects"><select name="firstlevel" style="width:250px;"></select></div>
<div class="black1 bold">2. Select Product Code</div>
<div class="selects"><select id="secondlevel" name="secondlevel" onchange="showDiv(this.value)" style="width:250px;"></select></div>
</form>
<div id="storesContent">
<div id="one" class="hiddenDiv">DIV1</div>
<div id="two" class="hiddenDiv">DIV2</div>
<div id="three" class="hiddenDiv">DIV3</div>
</div>
</body>
</html>
many thanks Roy Hi Everyone! I would genuinely appreciate some help on this one. I'm trying to combine a chained drop down list with the ability for the last selection to show/hide a div. I've researched and found ways to do both individually, but I'm hitting the wall when it comes to combining the javascript. This is how I'd like it to work: -- User selects from DropDown List 1. -- DropDown List 2 options appear based on the selection in 1. -- User selects from DropDown List 2, -- Appropriate div is shown. Here's the Javascript I'm using to show/hide a div: Code: function showDiv(divID)
{
var div = document.getElementById(divID);
div.style.display = ""; //display div
}
function hideDiv(divID)
{
var div = document.getElementById(divID);
div.style.display = "none"; // hide
}
function hideAllDivs()
{
//Loop through the seclect menu values and hide all
var courseSelect = document.getElementById("courseSelect");
for (var i=0; i<=courseSelect.options.length -1; i++)
{
hideDiv(courseSelect.options[i].value);
}
}
function toggle(showID){
hideAllDivs(); // Hide all
showDiv(showID); // Show the one we asked for
}
Here's the Javascript for the chained drop down lists: Code: <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3/jquery.min.js"></script>
<script type="text/javascript" defer>
function cascadeSelect(parent, child){
var childOptions = child.find('option:not(.static)');
child.data('options',childOptions);
parent.change(function(){
childOptions.remove();
child
.append(child.data('options').filter('.sub_' + this.value))
.change();
})
childOptions.not('.static, .sub_' + parent.val()).remove();
}
$(function(){
cascadeForm = $('.cascadeTest');
deptartmentSelect = cascadeForm.find('.deptartmentSelect');
courseSelect = cascadeForm.find('.courseSelect');
cascadeSelect(deptartmentSelect, courseSelect);
});
And lastly, my HTML (simplified) Code: <form action="#" class="cascadeTest">
<table>
<tr>
<th>Organization:</th>
<td><select name="deptartmentSelect" class="deptartmentSelect">
<option value="0">Select a Department</option>
<option value="1">Dept A</option>
<option value="2">Dept B</option>
<option value="3">Dept C</option>
</select></td>
</tr>
<tr>
<th>Territory:</th>
<td><select name="courseSelect" class="courseSelect" onChange="toggle(this.options[this.options.selectedIndex].value)">
<option value="0" class="static">- Courses -</option>
<option value="A1" class="sub_1">Course A1</option>
<option value="B1" class="sub_2">Course B1</option>
<option value="C1" class="sub_3">Course C1</option>
</select></td>
</tr>
</table>
</form>
<div id="A1" style="display:none;">I am Course A1</div>
<div id="B1" style="display:none;">I am Course B1</div>
<div id="C1" style="display:none;">I am Course C1</div>
Thanks again in advance! part of index page Code:
<form id="form1" name="form1" method="get" action="show.php">
<select id="mark" name="mark">
<option value="">--</option>
<option value="100">BMW</option>
<option value="101">Audi</option>
</select>
<select id="series" name="series">
<option value="">--</option>
<option value="1" class="100">1 series</option>
<option value="3" class="100">3 series</option>
<option value="5" class="100">5 series</option>
<option value="6" class="100">6 series</option>
<option value="7" class="100">7 series</option>
<option value="11" class="101">A1</option>
<option value="23" class="101">A3</option>
<option value="33" class="101">S3</option>
<option value="44" class="101">A4</option>
<option value="54" class="101">S4</option>
</select>
<button name="" type="submit" > Find! </button>
</p>
</form>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js" type="text/javascript" charset="utf-8"></script>
<script src="js/jquery.chained.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript" charset="utf-8">
$(function() {
$("#series").chained("#mark");
});
</script>
js Code: (function($) {
$.fn.chained = function(parent_selector, options) {
return this.each(function() {
/* Save this to self because this changes when scope changes. */
var self = this;
var backup = $(self).clone();
/* Handles maximum two parents now. */
$(parent_selector).each(function() {
$(this).bind("change", function() {
$(self).html(backup.html());
var selected = "";
selected = selected.substr(1);
/* Also check for first parent without subclassing. */
/* TODO: This should be dynamic and check for each parent */
/* without subclassing. */
var first = $(parent_selector).first();
var selected_first = $(":selected", first).val();
$("option", self).each(function() {
/* Remove unneeded items but save the default value. */
if (!$(this).hasClass(selected) &&
!$(this).hasClass(selected_first) && $(this).val() !== "") {
$(this).remove();
}
});
/* If we have only the default value disable select. */
if (1 == $("option", self).size() && $(self).val() === "") {
$(self).attr("disabled", "disabled");
} else {
$(self).removeAttr("disabled");
}
$(self).trigger("change");
});
/* Force IE to see something selected on first page load. */
$("option", this).first().attr("selected", "selected");
/* Force updating the children. */
$(this).trigger("change");
});
});
};
/* Alias for those who like to use more English like syntax. */
$.fn.chainedTo = $.fn.chained;
})(jQuery);
show.php Code: <?php
if (isset($_GET['mark']))
{
$papar_car=$_GET['mark'];
}
if (isset($_GET['series']))
{
$papar_ser=$_GET['series'];
}
?>
<!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>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
</head>
<body>
<form id="form1" name="form1" method="get" action="show.php">
<select id="mark" name="mark">
<option value="">--</option>
<option value="100"<? if($papar_car=="100")echo "selected='selected'"; ?>>BMW</option>
<option value="101"<? if($papar_car=="101")echo "selected='selected'"; ?>>Audi</option>
</select>
<select id="series" name="series">
<option value="">--</option>
<option value="1" class="100" <? if($papar_ser=="1")echo "selected='selected'"; ?>>1 series</option>
<option value="3" class="100"<? if($papar_ser=="3")echo "selected='selected'"; ?>>3 series</option>
<option value="5" class="100"<? if($papar_ser=="5")echo "selected='selected'"; ?>>5 series</option>
<option value="6" class="100"<? if($papar_ser=="6")echo "selected='selected'"; ?>>6 series</option>
<option value="7" class="100<? if($papar_ser=="7")echo "selected='selected'"; ?>">7 series</option>
<option value="11" class="101" <? if($papar_ser=="11")echo "selected='selected'"; ?>>A1</option>
<option value="23" class="101" <? if($papar_ser=="23")echo "selected='selected'"; ?>>A3</option>
<option value="33" class="101"<? if($papar_ser=="33")echo "selected='selected'"; ?>>S3</option>
<option value="44" class="101" <? if($papar_ser=="44")echo "selected='selected'"; ?>>A4</option>
<option value="54" class="101"<? if($papar_ser=="54")echo "selected='selected'"; ?>>S4</option>
</select>
<button name="" type="submit" > Find! </button>
</p>
</form>
<script type="text/javascript" language="javascript">
var car_m= <?php echo $_POST['mark']; ?>
</script>
<script type="text/javascript" language="javascript">
var car_m_s= <?php echo $_POST['series']; ?>
</script>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js" type="text/javascript" charset="utf-8"></script>
<script src="js/jquery.chained.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript" charset="utf-8">
$(function() {
$("#series").chained("#mark");
});
</script>
guys, after i done selection in the form1, i press submit button and Im going to show.php page. on show.php page i want categories to be already selected. whats my problem? Hello to all and thank you for any help beforehand. I have an issue with the script below, Select the top dropdown and the second gets populated, this is a nice piece of script, the only problem is that when the information is posted and presented on the process page I click page back to the form to rectify some other field but the ajax resets so I have to select Country & City each time even if thease fields are correct. I know that back button as well as bookmark is a problem with ajax but i think there is a solution the only thing is I don't know how to apply it to this script. Source of the script: http://www.dhtmlgoodies.com/index.ht...chained_select Ajax file: http://www.dhtmlgoodies.com/AJAX/ajax.js test.html 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" xml:lang="en" lang="en">
<head>
<title></title>
<meta http-equiv="content-type" content="text/html;charset=utf-8" />
<meta name="description" content="" />
<meta name="keywords" content="" />
<script type="text/javascript" src="ajax.js"></script>
<script type="text/javascript">
var ajax = new Array();
function getCityList(sel)
{
var countryCode = sel.options[sel.selectedIndex].value;
document.getElementById('dhtmlgoodies_city').options.length = 0; // Empty city select box
if(countryCode.length>0){
var index = ajax.length;
ajax[index] = new sack();
ajax[index].requestFile = 'getCities.php?countryCode='+countryCode; // Specifying which file to get
ajax[index].onCompletion = function(){ createCities(index) }; // Specify function that will be executed after file has been found
ajax[index].runAJAX(); // Execute AJAX function
}
}
function createCities(index)
{
var obj = document.getElementById('dhtmlgoodies_city');
eval(ajax[index].response); // Executing the response from Ajax as Javascript code
}
function getSubCategoryList(sel)
{
var category = sel.options[sel.selectedIndex].value;
document.getElementById('dhtmlgoodies_subcategory').options.length = 0; // Empty city select box
if(category.length>0){
var index = ajax.length;
ajax[index] = new sack();
ajax[index].requestFile = 'getSubCategories.php?category='+category; // Specifying which file to get
ajax[index].onCompletion = function(){ createSubCategories(index) }; // Specify function that will be executed after file has been found
ajax[index].runAJAX(); // Execute AJAX function
}
}
function createSubCategories(index)
{
var obj = document.getElementById('dhtmlgoodies_subcategory');
eval(ajax[index].response); // Executing the response from Ajax as Javascript code
}
</script>
</head>
<body>
<form action="" method="post">
<table>
<tr>
<td>Country: </td>
<td><select id="dhtmlgoodies_country" name="dhtmlgoodies_country" onchange="getCityList(this)">
<option value="">Select a country</option>
<option value="dk">Denmark</option>
<option value="no">Norway</option>
<option value="us">US</option>
</select>
</td>
</tr>
<tr>
<td>City: </td>
<td><select id="dhtmlgoodies_city" name="dhtmlgoodies_city">
</select>
</td>
</tr>
</table>
</form>
</body>
</html>
Here's the content of getCities.php Code: <?php
if(isset($_GET['countryCode'])){
switch($_GET['countryCode']){
case "no":
echo "obj.options[obj.options.length] = new Option('Bergen','1');\n";
echo "obj.options[obj.options.length] = new Option('Haugesund','2');\n";
echo "obj.options[obj.options.length] = new Option('Oslo','3');\n";
echo "obj.options[obj.options.length] = new Option('Stavanger','4');\n";
break;
case "dk":
echo "obj.options[obj.options.length] = new Option('Aalborg','11');\n";
echo "obj.options[obj.options.length] = new Option('Copenhagen','12');\n";
echo "obj.options[obj.options.length] = new Option('Odense','13');\n";
break;
case "us":
echo "obj.options[obj.options.length] = new Option('Atlanta','21');\n";
echo "obj.options[obj.options.length] = new Option('Chicago','22');\n";
echo "obj.options[obj.options.length] = new Option('Denver','23');\n";
echo "obj.options[obj.options.length] = new Option('Los Angeles','24');\n";
echo "obj.options[obj.options.length] = new Option('New York','25');\n";
echo "obj.options[obj.options.length] = new Option('San Fransisco','26');\n";
echo "obj.options[obj.options.length] = new Option('Seattle','27');\n";
break;
}
}
?>
I have a script which allows me to select random users from one select field to another and works like a charm, but... I want to be able to get random users from one select field to multiple (lets say 2) other select fields... So lets say that I have 5 users in the first field (select1): James Bill Jennifer Bob Karen Now when I press a button: <input value="" type="button" onClick="randomusers();" /> 2 users should be moved to select2 and other 2 users moved to select3. My current script is as follows: Code: function randomusers(){
var given = 2, used = {}, randnum, opts = $('#select1 option'), olen = opts.length, hiddiv = $('#hiddendiv');
function ran() { // generate a unique random number
randnum = Math.floor(Math.random() * olen);
return used['u'+randnum] ? ran() : randnum;
}
for (var i = 0; i < given; i++) { // get the correct quantity of randoms
used['u'+ran()] = true;
}
var players = opts.filter(function(index) { // remove all options that are not one of the randoms
return !!used['u'+index];
}).appendTo('#select2');
}
Hoping for help... Thanks in advance :-) Hi all, im looking for some help with some javascript if thats ok. I am building a system for creating a booklet. I want the user to be able to select the quantity of booklets they require. (eg 50, 75, 100, 125) Then also select the number of pages each booklet will require. (eg. 4, 8, 12) both will be select drop down boxes. I would like the price to be calculated based on the selections and displayed on the page. It will be total price not price per booklet. This is how i have built up the prices in php. if($b_maxpages == '4' && $b_quantity == '50') { $amount = "95.00"; } elseif($b_maxpages == '4' && $b_quantity == '75') { $amount = "103.00"; } elseif($b_maxpages == '4' && $b_quantity == '100') { $amount = "115.00"; } elseif($b_maxpages == '4' && $b_quantity == '125') { $amount = "132.00"; } elseif($b_maxpages == '8' && $b_quantity == '50') { $amount = "147.00"; } elseif($b_maxpages == '8' && $b_quantity == '75') { $amount = "171.00"; } elseif($b_maxpages == '8' && $b_quantity == '100') { $amount = "194.00"; } elseif($b_maxpages == '8' && $b_quantity == '125') { $amount = "218.00"; } elseif($b_maxpages == '12' && $b_quantity == '50') { $amount = "190.00"; } elseif($b_maxpages == '12' && $b_quantity == '75') { $amount = "222.00"; } elseif($b_maxpages == '12' && $b_quantity == '100') { $amount = "255.00"; } elseif($b_maxpages == '12' && $b_quantity == '125') { $amount = "288.00"; } I will also need the selected data to be posted once the form is submitted. Cheers vince Hello, I have this search box form with 2 select boxes : Code: <form action="search.php" method="get"> <select name="RingType"> <option value="Nose">Nose</option> <option value="Toe">Toe</option> <option value="Belly">Belly</option> </select> <select name="NecklaceType"> <option value="gold">Gold</option> <option value="diamond">diamond</option> <option value="pearl">pearl</option> </select> <input type="text" size="60" name="keywords" /> <input class="submit" type="submit" value="Search" /> </form> For example, when a visitor selects "Belly" RingType, I want "Belly Ring" to appear in the search box. and when the visitor selects "pearl" NecklaceType, I want "pearl necklace" to appear in the search box. if the visitor first selects "Belly" RingType, and then selects "pearl" NecklaceType, I want "Belly Ring pearl necklace" to appear in the search box. After making his selections in the search box, if he types something in the search box, it should add to what is already there in the search box. Or, if he first types something in the search box for example, "jewelry" and then selects "pearl" in the necklacetype select box, the search box should show : "jewelry pearl necklace" Can you please show how to do this ? Thanks a lot. I currently have two html select list boxes side by side on a form, two buttons in between the boxes to move items from list box to the other, and a javascript function to control the movement of the items from one box to the other. Here is the javascript: Code:
function MoveSelected(from, to) {
var lstFrom = $(from);
var lstTo = $(to);
for (var i = 0; i<lstFrom.length;i++) {
if ( lstFrom[i].selected ) {
var elOptNew = document.createElement('option');
elOptNew.text = lstFrom[i].text;
elOptNew.value = lstFrom[i].value;
try {
lstTo.add(elOptNew, null); // standards compliant; doesn't work in IE
} catch(ex) {
lstTo.add(elOptNew); // IE only
}
}
}
for (var i = lstFrom.length-1; i>=0;i--) {
if ( lstFrom[i].selected ) {
lstFrom.options[i] = null;
}
}
}
Here are the two html form select list boxes (lstAvailProd is the starting list box that lists the initial data and lstSelectProd is the destination list box): Code:
<td width="10%" valign="center">
<a href="javascript: MoveSelected('lstAvailProd','lstSelectProd');"><IMG SRC="buttons/right_arrow.gif" style="padding-bottom: 2px;" /></a><br /><br />
<a href="javascript: MoveSelected('lstSelectProd','lstAvailProd');"><IMG SRC="buttons/left_arrow.gif" /></a>
</td>
I was wondering if anyone could tell me how I could modify my code to allow for the selection of all the data in the starting list box by only selecting and moving the first item in the list to the destination list box? The first item is called "All Products", so instead of actually selecting every product in the starting list and moving them to the destination list, I would like the code to see that if the "All Products" list item is moved to the destination list, move all the other list items in the destination list back to the starting list. Here's an example of what the code for each list box looks like: Starting List Box: Code:
<select name="lstAvailProd" id="lstAvailProd" multiple="true" size="8" style="width: 250px;">
<option value="-1">{All Products}</option>
<option value="1">Product 1</option>
<option value="2">Product 2</option>
<option value="3">Product 3</option>
<option value="4">Product 4</option>
<option value="5">Product 5</option>
</select>
Destination List Box: Code: <select name="lstSelectProd" id="lstSelectProd" multiple="true" size="8" style="width: 250px;"> </select> Any help would be appreciated, thanks!! Anyone have any issues with Safari in relation to javascript compatibility? I have a page that loads dynamically through user selections as follows: There is a set of three radio buttons. The user selects one and a div opens revealing a select box populated with entries related to the radio button selection. When the user makes a selection from the select box, one of two things happen. 1) If there are child records relating to their selection, a second div opens revealing another select box containing the child entries relating to the first select box choice. Or 2) if there are no child entries relating to the selection in the first select box, a div opens displaying a description relating to the selection they made in the first select box. The data is all coming from prepopulated javascript arrays. This works like a dream in IE and Chrome. Unfortunately, when we were in the final stages of testing before release to a live environment, we discovered it works in Safari only as far as the user makes a selection from the three radio buttons driving the opening of the first div layer containing the first select. At this point it stops working completely. On top of that, I can not find where in the latest release of Safari, that I can see any javascript errors (or if I even can). I am REALLY in need of help. Anything you can offer? Thanks!! Dmxsmith Hi there, this is our first post, just stubmled across this awesome site. Need some help if anyone is able (and willing ). We are trying to make the best possible shopping experience for our customers. Objective: to give the customer a running total of what they're about to order, before they add to basket (kind of a quick quote). if you go to our test page: http://www.gatewrights.co.uk/page87.html we have got a form (boxed in red) which does indeed put the totals (of that form) in the totals box (on our form). As you should see if you test it. Now, I need to try and work out (but am really struggling) how to get it to work with the items on our form. Objective: to give the customer a running total of what they're about to order, before they add to basket (kind of a quick quote). I'll post the head js code and the body js code below. I have tried renaning the formID to 'frmOrder' (the same as the one boxed in red, and then moved that boxed one off page but it doesn't work. I suspect there is a little work to do (possibly in the value fields of our form). Hope it is clear, and I thank you for your time so far. -------------------------- js head code: Code: </script><script type="text/javascript" src="orderform04.js"></script> (plus) Code: <script type="text/javascript">
//<![CDATA[
window.onload = setupScripts;
function setupScripts()
{
var anOrder1 = new OrderForm();
}
//]]>
</script>
-------------------- js file uploaded to root directory (orderform04.js): Code: // mredkj.com
// OrderForm.js - v0.4
// v0.4 - 2007-02-01
// v0.3 - 2006-04-09
// v0.2 - 2006-04-08
// v0.1 - 2006-04-06
function OrderForm(prefix, precision, firstChoice) {
this.prefix = prefix ? prefix : '';
// ****************************
// Configure here
// ****************************
// names - Set these according to how the html ids are set
this.FORM_NAME = this.prefix + 'frmOrder';
this.BTN_TOTAL = this.prefix + 'btnTotal';
this.TXT_OUT = this.prefix + 'txtTotal';
// partial names - Set these according to how the html ids are set
this.CHK = this.prefix + 'chk';
this.SEL = this.prefix + 'sel';
this.PRICE = this.prefix + 'txtPrice';
// precision for the decimal places
// If not set, then no decimal adjustment is made
this.precision = precision ? precision : -1;
// if the drop down has the first choice after index 1
// this is used when checking or unchecking a checkbox
this.firstChoice = firstChoice ? firstChoice : 1;
// ****************************
// form
this.frm = document.getElementById(this.FORM_NAME);
// checkboxes
this.chkReg = new RegExp(this.CHK + '([0-9]+)');
this.getCheck = function(chkId) {
return document.getElementById(this.CHK + chkId);
};
// selects
this.selReg = new RegExp(this.SEL + '([0-9]+)');
this.getSelect = function(selId) {
return document.getElementById(this.SEL + selId);
};
// price spans
this.priceReg = new RegExp(this.PRICE + '([0-9]+)');
// text output
this.txtOut = document.getElementById(this.TXT_OUT);
// button
this.btnTotal = document.getElementById(this.BTN_TOTAL);
// price array
this.prices = new Array();
var o = this;
this.getCheckEvent = function() {
return function() {
o.checkRetotal(o, this);
};
};
this.getSelectEvent = function() {
return function() {
o.totalCost(o);
};
};
this.getBtnEvent = function() {
return function() {
o.totalCost(o);
};
};
/*
* Calculate the cost
*
* Required:
* Span tags around the prices with IDs formatted
* so each item's numbers correspond its select elements and input checkboxes.
*/
this.totalCost = function(orderObj) {
var spanObj = orderObj.frm.getElementsByTagName('span');
var total = 0.0;
for (var i=0; i<spanObj.length; i++) {
var regResult = orderObj.priceReg.exec(spanObj.id);
if (regResult) {
var itemNum = regResult[1];
var chkObj = orderObj.getCheck(itemNum);
var selObj = orderObj.getSelect(itemNum);
var price = orderObj.prices[itemNum];
var quantity = 0;
if (selObj) {
quantity = parseFloat(selObj.options[selObj.selectedIndex].text);
quantity = isNaN(quantity) ? 0 : quantity;
if (chkObj) chkObj.checked = quantity;
} else if (chkObj) {
quantity = chkObj.checked ? 1 : 0;
}
total += quantity * price;
}
}
if (this.precision == -1) {
orderObj.txtOut.value = total
} else {
orderObj.txtOut.value = total.toFixed(this.precision);
}
};
/*
* Handle clicks on the checkboxes
*
* Required:
* The corresponding select elements and input checkboxes need to be numbered the same
*
*/
this.checkRetotal = function(orderObj, obj) {
var regResult = orderObj.chkReg.exec(obj.id);
if (regResult) {
var optObj = orderObj.getSelect(regResult[1]);
if (optObj) {
if (obj.checked) {
optObj.selectedIndex = orderObj.firstChoice;
} else {
optObj.selectedIndex = 0;
}
}
orderObj.totalCost(orderObj);
}
};
/*
* Set up events
*/
this.setEvents = function(orderObj) {
var spanObj = orderObj.frm.getElementsByTagName('span');
for (var i=0; i<spanObj.length; i++) {
var regResult = orderObj.priceReg.exec(spanObj.id);
if (regResult) {
var itemNum = regResult[1];
var chkObj = orderObj.getCheck(itemNum);
var selObj = orderObj.getSelect(itemNum);
if (chkObj) {
chkObj.onclick = orderObj.getCheckEvent();
}
if (selObj) {
selObj.onchange = orderObj.getSelectEvent();
}
if (orderObj.btnTotal) {
orderObj.btnTotal.onclick = orderObj.getBtnEvent();
}
}
}
};
this.setEvents(this);
/*
*
* Grab the prices from the html
* Required:
* Prices should be wrapped in span tags, numbers only.
*/
this.grabPrices = function(orderObj) {
var spanObj = orderObj.frm.getElementsByTagName('span');
for (var i=0; i<spanObj.length; i++) {
if (orderObj.priceReg.test(spanObj.id)) {
var regResult = orderObj.priceReg.exec(spanObj.id);
if (regResult) {
orderObj.prices[regResult[1]] = parseFloat(spanObj.innerHTML);
}
}
}
};
this.grabPrices(this);
}
--- Now I hope this makes sense, and really appreciate any help you can offer. If anything is unclear, please let me know. ps is it something to do with "* Prices should be wrapped in span tags, numbers only."?? I have two drop down lists , list1, list 2. I want it to change according to the radio button selected by the user. If the user selects radio button1, lists1 should be displayed. If the user selects radio button2, lists2 should be displayed. How can i achieve this using javascript. Please somebody help me. I have a form where users will be making a selection in a drop down box. I need, essentially, to store two values: the first value is the actual value assigned with each drop down item (their label, basically), and the second value being a completely separate value that will change based on what they chose from the drop down box to begin with. Example: Drop down box contains selections A, B, C, D. User selects A, I need to keep the original dropdown box's A value in tact for the dropdown box's value, and then store a 1 in a hidden textbox. User selects B, a 2 is stored, etc. Both of these values will be e-mailed, hence the reason I chose a hidden textbox to store the second value. Additionally, I don't want the user to see the second value on the form itself. If there's a better way to accomplish this, please let me know. |
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