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JavaScript - Is There An Easier Way To Implement This Function?
I have a parent checkbox that when checked, I want it to validate whether 1 of the four child checkboxes are selected.
I've gotten it to work but I'd like to have one if condition as opposed to all the '&&'. Anyone know how to clean these up? Code: <script type="text/javascript">
function checkMe() {
var mbe = document.getElementById('a10_Class01');
if (mbe.checked) {
for (i=0; i<4; i++){
if (document.getElementById('a10_ClassSub1').checked == false && document.getElementById('a10_ClassSub2').checked == false && document.getElementById('a10_ClassSub3').checked == false && document.getElementById('a10_ClassSub4').checked == false){
alert('Choose a minority.');
return false;
}
}
}
}
</script>
Similar TutorialsIm fairly new to javascript, i have mostly been into php i have this code i wrote in one of my projects and i assume theres an easier way Code: setTimeout("check20()", 0);
setTimeout("check19()", 50);
setTimeout("check18()", 100);
setTimeout("check17()", 150);
setTimeout("check16()", 200);
setTimeout("check15()", 250);
setTimeout("check14()", 300);
setTimeout("check13()", 350);
setTimeout("check12()", 400);
setTimeout("check11()", 450);
setTimeout("check10()", 500);
setTimeout("check9()", 550);
setTimeout("check8()", 600);
setTimeout("check7()", 650);
setTimeout("check6()", 700);
setTimeout("check5()", 750);
setTimeout("check4()", 800);
setTimeout("check3()", 850);
setTimeout("check2()", 900);
setTimeout("check()", 950);
basically every 50 javascript seconds a function is activated, so that means i have a **** ton of function too all doing the same thing just to different ids If you know of a better way let me know please Hi everybody, I have written a javascript slideshow with pause-play-next-previous buttons, but the images are too many and users have to wait too long especially with slower connections - i wonder if anybody can suggest a way to implement the script with fast preloading of the first few images, increment preloading or a similar trick. I will copy my code below but i also copy first this link: http://www.javascriptkit.com/script/...entslide.shtml which is an example of increment loading slideshow working fine! my problem is i am quite new to javascript and i wouldnt know how to customize it in order to take away the link function, that i dont need, and add captions and buttons etc. Any advice in one of the two directions (working on my own script below or customizing the linked one above) would be very very appreciated! Also alternative ideas (i.e. some solutions using pure CSS) are welcome! I do know some jquery plugin could do but i am trying to go more into the code, even though i still need a lot of advices and tutorials, the goal is solving this specific problem but also learning! Thx a lot in advance. Here my code (just 2 images here in the list to make it shorter for you, the complete list is more than 50 pics!): Code: <script language="JavaScript">
<!--
var interval = 8000;
var random_display = 0;
var imageDir = "portraits/";
var imageNum = 0;
didascalieArray = new Array();
imageArray = new Array();
didascalieArray[imageNum] = "caption1";
imageArray[imageNum++] = new imageItem(imageDir +
"image1.jpg");
didascalieArray[imageNum] = "caption2";
imageArray[imageNum++] = new imageItem(imageDir +
"image2.jpg");
var totalImages = imageArray.length;
function imageItem(image_location) {
this.image_item = new Image();
this.image_item.src = image_location;
}
function get_ImageItemLocation(imageObj) {
return(imageObj.image_item.src)
}
function getNextImage() {
if (random_display) {
imageNum = randNum(0, totalImages-1);
}
else {
imageNum = (imageNum+1) % totalImages;
}
var new_image = get_ImageItemLocation(imageArray
[imageNum]);
document.getElementById("didascalia").innerHTML =
didascalieArray[imageNum];
return(new_image);
}
function getPrevImage() {
if(imageNum-1 < 0) {
imageNum = totalImages-1;
}
else
imageNum = (imageNum-1) % totalImages;
var new_image = get_ImageItemLocation(imageArray
[imageNum]);
document.getElementById("didascalia").innerHTML =
didascalieArray[imageNum];
return(new_image);
}
function prevImage(place) {
var new_image = getPrevImage();
document[place].src = new_image;
}
function switchImage(place) {
var new_image = getNextImage();
document[place].src = new_image;
var recur_call = "switchImage('"+place+"')";
timerID = setTimeout(recur_call, interval);
}
// -->
</script>
I'm running into issues while trying to make some simple code to loop through and display different combinations of 3 colours. I want to show 3 boxes on screen and then loop through/increment each possible combination of colours. For simplicity's sake I'm trying to go from black to white in each box like this: (box1rgb/box2rgb/box3rgb) step 1: 000 000 000 step 2: 000 000 111 step 3: 000 000 222 . . . step 256: 000 000 255255255 step 257: 000 111 000 step 258: 000 111 111 step 259: 000 111 222 . . . step 512: 000 111 255255255 step 513: 000 222 000 step 514: 000 222 111 . etc. Yes, I know the thing will take a long time to complete! The colour is being set by the statement document.getElementById("box#").style.backgroundColor = "rgb(" + p1 + "," + p1 + "," + p1 + ")"; where p1 is the incrementing variable. Firstly I tried to do it using nested "for" loops. Code: for (p3=0;p3<=255;p3++) {
document.getElementById("box03").style.backgroundColor = "rgb(" + p3 + "," + p3 + "," + p3 + ")";
for (p2=0;p2<=255;p2++) {
document.getElementById("box02").style.backgroundColor = "rgb(" + p2 + "," + p2 + "," + p2 + ")";
for (p1=0;p1<=255;p1++) {
document.getElementById("box01").style.backgroundColor = "rgb(" + p1 + "," + p1 + "," + p1 + ")";
}
}
}
But of course the code executes far too rapidly for each combination to be seen. It all chewed up lots of CPU and nothing was smooth. To slow the process, I tried a single recursive loop using a timeout statement: Code: function loopandshow() {
document.getElementById("box01").style.backgroundColor = "rgb(" + currentcolour + "," + currentcolour + "," + currentcolour + ")";
currentcolour += 1;
if (currentcolour <= 255) window.setTimeout("loopandshow();", 20);
}
This worked smoothly for a single box but I couldn't work out how to nest this format 3 levels deep and have each level increment only when the deeper level had completed the cycle. Any advice would be gratefully appreciated. Thanks in advance. I am trying to code a piece of JavaScript that queries the Internic for whois information (using either a domain or an IP address) and puts the results into a JSON object with separate fields for each piece of information.
I have a main window which produces a number of child windows when I press a button. Users need to be able to switch between windows using Ctrl+Tab hot key. I was trying to implement this by intercepting keyup/keydown events in one of the frames. But the problem is that main window has several frames and I don't have access to all of them because some of them are in different domains. As soon as a user clicks on a frame without my handler the hot key is not working anymore. Any ideas how to implement it? Maybe an ActiveX component? If ActiveX could help me - how does it work? Are there any tutorials or examples how to write an activeX to intercepts hot keys in IE? Thank you. We are using Volusion for our shopping cart, but I am trying to put a pop-up option in there for marketing. Volusion operates using a template.htm and css files that I can access, and of course I cannot access the root file (default/index.htm). The program I am tyring to use says to place the following line next to the <body> tag of the default page: <!-- POPUP --><script src=http://www.metalcloak.com/v/34.popup/script.js></script><!-- END --> 34.popup is a folder with the applicable script and graphics. For whatever reason, if I put this line in the template file after this location: <body id="body" onload="if(typeof(store_init)=='function')store_init(event);" > It does not function. Talking with the techies at Volusion, they have no recommendation other than using JavaScript to point this script to operate on the home page only. Any help or direction of what I should do (even if it means scrapping a pre-packaged Popup Proogram as an option) is much appreciated. Thank you. Friends i'm in a dire situation only have wednesday to submit ..so heres the problem....i have a course work assigment where i have to hardwire Hardware items and their item codes description and prices and ask the user to input their name address the itemCode and quantity nad then creat an invoice which looks like this HARDWARE ITEMS CODE DESCRIPTION UNIT PRICE K16 Wood screws, brass, 20mm, pack of 50 $ 7.75 D24 Wood glue, clear, 1 litre $ 5.50 M93 Sandpaper, medium grade, 100 sheets $10.25 M94 Sandpaper, fine grade, 100 sheets $14.75 PLACE YOUR ORDER! NAME: Bill Silic ADDRESS-1: Apt 23 ADDRESS-2: Building 8 ADDRESS-3: Winchester POST CODE: 89763 ENTER CODE (XX to Stop): CODE: D24 QUANTITY: 2 CODE: K16 QUANTITY: 1 CODE:XX INVOICE FOR ORDER Bill Silic Apt 23 Building 8 Winchester POST CODE: 89763 D24 Wood glue, clear, 1 litre 2 @ $ 5.50 $ 11.00 K16 Wood screws, brass, 20mm, pack of 50 1 @ $ 7.75 $ 7.75 TOTAL: $ 18.75 Shipping: 2 items @ 1.00 2.00 TOTAL INCL. SHIPPING: 20.75 VAT at 20% 4.15 TOTAL TO PAY: 24.90 I HAVE ALREADY COMPLETED THIS BY MYSELF AND GOT IT WORKING WITH NO PROBLEM ..But my problem is that the teacher wants us to TEST FOR NULL ENTRY meaning if the user enters the wrong Itemcode or no ItemCode at all and give an sensible output for that case ..... she wants us to put it in a method after main and then call it in main using a do while loop so my method looks something like this Code: public static boolean isSomethingCorrect(String itemCode){
if(itemCode.equals("")||itemCode.equals(null)){
System.out.println("A sensible output");
return true;
}//close if
return false;
}
}
// and i have to implement it where i ask the user for input using a Do while loop in this area Code: //a do while loop to test null code entry
do{
System.out.println("Please select a code from the list");
String itemCode= br.readLine();
System.out.println("Please enter quantity of items " +itemCode);
String itemQuantity= br.readLine();
int quantity= Integer.parseInt(itemQuantity);
// I Will be forever grateful for any help on this program because i have tryed for hours upon hours and i just cant get it and i need to submit the day after tomorrow Hi, I got this two javascripts: - Datepicker by Jason Moon (http://calendar.moonscript.com/dateinput.cfm) which can have multiple of this datepicker on a single form - Dynamic Add/Remove rows from http://viralpatel.net/blogs/2009/03/...avascript.html I would like to add rows of fields with each rows having it's individual datepicker. Code: <table id="billcmp_7" width="320" border="0">
<tr>
<td width="200" align="center"><script>DateInput('billcmp7_cycle', true)</script></td>
<td width="10"> </td>
<td width="100" align="center"><input name="billcmp7_name" type="text" /></td>
<td width="10"><INPUT type="checkbox" name="chk"/></td>
</tr>
</table>
<table width="320" border="0">
<tr>
<td colspan="4" align="center"><INPUT type="button" value="Add Row" onclick="addRow('billcmp_7')" /><INPUT type="button" value="Delete Row" onclick="deleteRow('billcmp_7')" /></td>
</tr>
</table>
I just want this section Code: <script>DateInput('billcmp7_cycle', true)</script>
to work like Code: <script>DateInput('billcmp7_cycle_1', false)</script>
<script>DateInput('billcmp7_cycle_2', false)</script>
when click on the add button. Here's what i meant? Link cant get the time to be different as it is still read as single datepicker. Any1 has any idea how or any alternative? I have implemented timer for 10sec.It's displaying the message.Now After pressing OK button that is after first 10 sec I want the timer to restart again and run for 20 secs and then display other message.After pressing OK button,that is for 20 secs I want the timer to restart again for 60 secs and display a new third message. Here is my code: Can you help me? =========================================================== <SCRIPT LANGUAGE = "JavaScript"> <!-- var secs var timerID = null var timerRunning = false var delay = 1000 function InitializeTimer() { // Set the length of the timer, in seconds if(secs = 10) { StopTheClock() StartTheTimer() secs++ } else if(secs = 15) { StopTheClock() StartTheTimer() } } function StopTheClock() { if(timerRunning) clearTimeout(timerID) timerRunning = false } function StartTheTimer() { if (secs==0) { StopTheClock() // Here's where you put something useful that's // supposed to happen after the allotted time. // For example, you could display a message: alert("Would You Like to try again?") } else { self.status = secs secs = secs - 1 timerRunning = true timerID = self.setTimeout("StartTheTimer()", delay) } } //--> </SCRIPT> Here is how I'm calling it: <FORM> <INPUT TYPE=BUTTON VALUE="Submit" onClick = "InitializeTimer()"> </FORM> Please help! Can anyone give me some advice on how to manipulate Google Fusion Table using Javascript??? I've read the Fusion table's Developer Guider. But still feel confused. Can anyone tell me the specific solution?? Or give me a sample code?? Thanks very much!!!!!! Hi. I'm working on a script that picks out a random entry in an array every 10seconds and show it to the user (using document.write). So far I've got the "Randomizer" to work like this: Code: function random(){
var nummer = Math.floor(Math.random()* tekst.length);
return nummer;
}
var tekst = new Array("Different", "Values");
and showing it like this: Code: document.write(tekst[random()]); Now, I've tried my best to implement setInterval() to give me a new random number every 10seconds, but so far without any luck... I appreciate all help! Thx in advance. Hi, I am facing a problem in passing replace() function as an argument in user defined java function, can any one help me how to resolve it? intention is to pass a file path to my user defined function, but before passing the path i want to replace the character '\' to '\\' I am posting my javascript function he <a href="#" onclick="OpenDocPreview('<%# Eval("PATH")%>'.replace(/\\/g,"\\\\"), '<%# Eval("Filename")%>')"><%# Eval("DocTitle") %></a> function OpenDocPreview(url, docname) { alert('message from search base : ' + url + ' ' + docname); } thank you, I was working on a tutorial for some ajax uploading stuff and I ran across a new function syntax I don't recognize. I am not a Javascript pro, but I am not a newbie either. here is the code I am working on: Code: function handleFileSelect(e){
var files = e.target.files;
var output = [];
for(var i=0,f;f=files[i];i++){
if(f.type.match('image.*')){
var reader = new FileReader();
reader.onload = (function(theFile){
return function(e){
var span = document.createElement('span');
span.innerHTML = ['<img class="thumb" src="',e.target.result,'" title="',theFile.nbame,'" />'].join('');
document.getElementById('list').insertBefore(span,null);
};
})(f);
reader.readAsDataURL(f);
}
}
document.getElementById('list').innerHTML = '<ul>'+output.join('')+'</ul>';
}
document.getElementById('files').addEventListener('change',handleFileSelect,false);
To be a little more clear, the code in question is that is the very middle. The syntax I don't understand is: Code: class.event = (function(arguments){
//stuff you put in a function...
})(more Arguments?);
I tried to customize a simple one to learn for myself and I wrote this: Code: var a = 'A';
var b = 'B';
test = (function(t){
alert(t);
alert(b);
})(b);
test(a);
The browser would alert 'B' and that's it. The console would tell me that 'test is not a function.' OK, so I am confused. The topmost code works. What I am wondering is what the syntax is called for creating a function (or event listener?) that way, and how it works. Although if I new what it was called I could just google how it works. Hi All, I'm trying to convert an anonymous function to a real function (nesting is getting out of hand), however the msg object becomes undefined after conversion. Here is the converted anonymous function which fails: https://gist.github.com/2587613 and here is the original anonymous function which works: https://gist.github.com/2587667 Any help would be greatly appriciated <p> <script type="text/javascript">// <![CDATA[ var metrics = { "mm" : 1, "cm" : 10, "m" : 1000, "inch" : 25.4, "foot" : 304.8 }; function convert(num, dec){ var val = document.getElementById("fromVal").value; if(isNaN(val)){ return } function roundNumber(num, dec) { var result = Math.round( Math.round( num * Math.pow( 10, dec + 1 ) ) / Math.pow( 10, 1 ) ) / Math.pow(10,dec); return result; } document.getElementById("toVal").value = val * metrics[document.getElementById("fromSystem").value]/ metrics[document.getElementById("toSystem").value]; } var interval = null; function watchChanges(){ interval == null ? setInterval("convert()", 500) : clearInterval(interval); } // ]]></script> </p> <table> <tbody> <tr> <td><input id="fromVal" style="width: 100px;" onfocus="watchChanges()" onblur="watchChanges()" type="text" /><select id="fromSystem" onchange="convert()"> <option value="mm">millimeters</option> <option selected="selected" value="cm">centimeters</option> <option value="m">meters</option> <option value="foot">feet</option> <option value="inch">inches</option> </select></td> </tr> <tr> <td colspan="1" align="center">=</td> </tr> <tr> <td><input id="toVal" style="width: 100px;" type="text" disabled="disabled" /><select id="toSystem" onchange="convert()"> <option value="mm">millimeters</option> <option value="cm">centimeters</option> <option value="m">meters</option> <option selected="selected" value="foot">feet</option> <option value="inch">inches</option> </select></td> i keep getting error Call to undefined function codeandurl() below is my code PHP Code: <?php $value= strip_tags(get_field('link',$post)); $resultid=get_field('resultid',$post); codeandurl($resultid,$value); ?> <div id="result"></div> <script type="text/javascript"> function codeandurl(resultid,url){ $( "#result" ).text(resultid); $( "#result" ).dialog({ modal: true, buttons: { Ok: function() { $( this ).dialog( "close" ); } } }); window.open(url); return false; } </script> Hi! I'm trying to toggle a class and one works and the other does not and I don't know why. I'm just getting my feet wet with jquery and javascript and I figured this was a pretty easy task to take on! Maybe. Link to the page: Franklin Township Soccer Club - Change Field Status My sad, sorry attempt =| Code: $( "li.open" ).click(function() {
$( this ).toggleClass( "closed" );
});
$( "li.closed" ).click(function() {
$( this ).toggleClass( "open" );
});
The first function works with open, so I figured I'd just use opposite on closed! Ha! I don't think so! In the end within those function there is an element in a form on that page it's hidden. I'd like to change the value from a 0 to 1 for vice versa. That' will be my next step. If you could give me a little nudge in the right direction I'd appreciate it! But first understanding why one works and the other does not, that is the primary mission! I do appreciate any help given! Dave I found this script, and it works great: Code: <script type="text/javascript">
function disable(element)
{
var input = document.getElementById(element).getElementsByTagName("input");
for(var i = 0; i < input.length; i++)
{
input[i].setAttribute("disabled","true");
}
}
</script>
I tried to make the inverse by simply reversing the setAttribute() like so: Code: <script type="text/javascript">
function enable(element)
{
var input = document.getElementById(element).getElementsByTagName("input");
for(var i = 0; i < input.length; i++)
{
input[i].setAttribute("disabled","false");
}
}
</script>
But that didn't do it. Can someone show me why, and how to fix it? Here's the sample form which I'm trying to test it on: Code: <form>
<input type="radio" name="test" onclick="disable('D1')" /> disable<br/>
<input type="radio" name="test" onclick="enable('D1')" /> enable<br/>
<fieldset id="D1">
<input class="" type="text" value="test value1" /><input class="" type="text" value="test value2" /><br/>
<input class="" type="text" value="test value3" /><input class="" type="text" value="test value4" /><br/>
<input class="" type="text" value="test value5" /><input class="" type="text" value="test value6" /><br/>
</fieldset>
</form>
Edit: The ultimate goal which I'm working toward now (step by step =) is to have a form more like: Code: <form>
<input type="radio" name="test" onclick="disable('D1')" />
<fieldset id="D1">
<input class="" type="text" value="test value1" /><input class="" type="text" value="test value2" />
</fieldset>
<input type="radio" name="test" onclick="disable('D2')" />
<fieldset id="D2">
<input class="" type="text" value="test value3" /><input class="" type="text" value="test value4" />
</fieldset>
<input type="radio" name="test" onclick="disable('D3')" />
<fieldset id="D3">
<input class="" type="text" value="test value5" /><input class="" type="text" value="test value6" />
</fieldset>
</form>
And have the fieldsets enable and disable according the selection of the radio buttons. Also, the fieldsets (and their ID's) will be dynamically generated via PHP Thanks-a-bunch, ~ Mo Thank you in advance if someone can help. I have been banging my head against the wall for hours now. Here is the code: Code: for (var i = 0; i < BS_crm['activityTypes'].length; i++) {
var clickFunc = function(){ activityList.showForm( -1, {blockType:[""+BS_crm['activityTypes'][i]['id'], "0"]} ); };
var type = {
value: BS_crm['activityTypes'][i]['id'],
label: "Add New "+BS_crm['activityTypes'][i]['label'],
css: BS_crm['activityTypes'][i]['css']+"_16",
onClick: clickFunc
};
previewLinks.items.push( type );
}
Now, basically what I am doing here is running through one array to create an array of objects, that will be used to create links that will use whatever onClick function I pass it. The problem is that on the second line I need the BS_crm['activityTypes'][i]['id'] to be a value, not a reference. If that line was simply changed to: Code: var clickFunc = function(){ activityList.showForm( -1, {blockType:["3", "0"]} ); };
then everything would work as I need. How can I make this happen? I would really appreciate any help. Thank you again in advance. Hi, Any one help me In one variable i have some data ex: var data = document.getElementById("imageId").value; I want to pass this data to another function inside another function ex: var button1 = '<img src="images/Remove-button.gif" width="70" height="15" onclick="removeVerifyImageRow(this),saveLibData('+data+')"/>'; while running the application i am getting an error incase if the data is string ex:if data is 'image1' i am getting an error, but with number there is no problem ex: if data is '1122'. this is very urgent to solve this problem plz any one help me |
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