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  • Javascript Function for related select elements onSubmit

    - by Livingston
    I am trying to create (4) Select elements within a form element. Each select element has a different number of options. So if a user click one option on Select #1 and then click another option on Select #2, after hitting submit they will be taken to www.blah.com/option1/option2 page which will display the filtered results. Or they can chose an option from all 4 select menus and be taken to option1/option2/option3/option4 page. The categories are all related .Select #1 is a category, Select #2 is a subcategory of 1, Select #3 is a subcategory of #2 and Select #4 is a subcategory of #3. A great example would be on (LINK) http://www.safavieh.com/rugs (LINK) except only four Select elements. I would also like to add the "Reset" button next to "Submit." I know I need to construct a function in my header and use onSubmit attribute within the form but other than that I am unsure of what's involved so I'm hoping someone could point me in the right direction. It's important I learn most of this for myself. Thanks for your time Livingston

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  • Detect if objects are loaded [Javascript]

    - by Samuel
    I was wondering, is there a way to detect if a certain image / div is loaded? For example when i am loading two heavy images and showing a loading sign at the two places the images will later occupy, is there a way to already display the first image when it's loaded while still loading the second one?

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  • JavaScript inheritance

    - by Tower
    Hi, Douglas Crockford seems to like the following inheritance approach: if (typeof Object.create !== 'function') { Object.create = function (o) { function F() {} F.prototype = o; return new F(); }; } newObject = Object.create(oldObject); It looks OK to me, but how does it differ from John Resig's simple inheritance approach? Basically it goes down to newObject = Object.create(oldObject); versus newObject = Object.extend(); And I am interested in theories. Implementation wise there does not seem to be much difference.

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  • Javascript tricks

    - by ayush
    What does the following code mean - <a href="javacsript:;" onClick="addItem(160)">some link</a> My basic doubt is which script is run when we click on the link

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  • Javascript AJAX function not working properly

    - by Or W
    I have a function that sends a GET request to a php script and checks if the script returned any output. It works great, but when I try to add another function that checks for something similar, both of them fail. What am I missing? function checkUsername(usr,n) { var user = usr.val(), xmlhttp; //var str = document.getElementById('email').value; if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); } else {// code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.onreadystatechange=function() { if (xmlhttp.readyState==4 && xmlhttp.status==200) { //document.getElementById("txtHint").innerHTML=xmlhttp.responseText; if (xmlhttp.responseText != "") { usr.addClass( "ui-state-error" ); updateTips( n ); return false; } else { return true; } } } xmlhttp.open("GET","ajaxValidate.php?type=user&q="+user,true); xmlhttp.send(); } The above works perfectly, when adding this function, none of them work: function checkEmail(em,n) { var email = em.val(), xmlhttp; //var str = document.getElementById('email').value; if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); } else {// code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.onreadystatechange=function() { if (xmlhttp.readyState==4 && xmlhttp.status==200) { //document.getElementById("txtHint").innerHTML=xmlhttp.responseText; if (xmlhttp.responseText != "") { em.addClass( "ui-state-error" ); updateTips( n ); return false; } else { return true; } } } xmlhttp.open("GET","ajaxValidate.php?type=email&q="+email,true); xmlhttp.send(); }

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  • How to find modal dialog opener from javascript?

    - by yapiskan
    I have a page that opens a modal dialog. After the operations done on dialog I want to refresh the opener page. But when I open the popup by using "openDialog" I cannot access to the opener by using window.opener on popup page. It appears "undefined" when I wanted to access. (I dont want to use "popup" method in this case. I want it to be a dialog by the way. using "popup" is my second plan.) What is the best practice to get rid off this issue?

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  • Help with javascript form validation

    - by zac
    I am getting a headache with form validation and hoping that the kind folks here can give me a hand finishing this sucker up I have it basically working except the email validation is very simplistic (only alerts if it is blank but does not actually check it if is a valid email address) and I am relying on ugly alerts but would like to have it reveal a hidden error div instead of the alert. I have this all wrapped up with an age validation check too.. here are the important bits, minus the cookie scripts function checkAge() { valid = true; if ( document.emailForm.email.value== 0 ) { alert ( "Please enter your email." ); valid = false; } if ( document.emailForm.year.selectedIndex == 0 ) { alert ( "Please select your Age." ); valid = false; } var min_age = 13; var year = parseInt(document.forms["emailForm"]["year"].value); var month = parseInt(document.forms["emailForm"]["month"].value) - 1; var day = parseInt(document.forms["emailForm"]["day"].value); var theirDate = new Date((year + min_age), month, day); var today = new Date; if ( (today.getTime() - theirDate.getTime()) < 0) { var el = document.getElementById('emailBox'); if(el){ el.className += el.className ? ' youngOne' : 'youngOne'; } document.getElementById('emailBox').innerHTML = "<img src=\"emailSorry.gif\">" createCookie('age','not13',0) return false; } else { //this part doesnt work either document.getElementById('emailBox').innerHTML = "<img src=\"Success.gif\">" createCookie('age','over13',0) return valid; }; }; var x = readCookie('age'); window.onload=function(){ if (x=='null') { }; if (x=='over13') { }; if (x=='not13') { document.getElementById('emailBox').innerHTML = "<img src=\"emailSorry.gif\">"; }; } can someone please help me figure a better email validation for this bit: if ( document.emailForm.email.value== 0 ) { alert ( "Please enter your email." ); valid = false; } and how would I replace the alert with something that changes a class from hidden to visible? Something like? document.getElementById('emailError').style.display='block'

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  • Replace images in a DIV using javascript.

    - by Muhammad Sajid
    Hi, I want to show different images in a DIV, the turn of an image depend on a random number. The image name is like 1.gif, 2.gif, .. 6.gif to do that I coded var img = document.createElement("IMG"); img.src = "images/1.gif"; document.getElementById('imgDiv').appendChild(img); but it does not replace the old image how ever it add an another image right in the bottom of first image. syntax for DIV is: <div id="imgDiv" style="width:85px; height:100px; margin:0px 10px 10px 375px;"></div> may u halp me ?

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  • JavaScript lazy regex for matching HTML tags

    - by Grnbeagle
    Hi, I'm having a problem writing a regular expression for matching HTML tags. I found a similar entry here, but this didn't quite work in my case. Here's my test string: <div id="div0" class="myclass">here's some text that may include whitespace</div><div id="div1" class="myclass"> and some more here </div> And here's my regex based on the aforementioned entry: <div[^>]*class="myclass">[^~]*?<\/div> Note that I need to match the first instance of <div /> with class of "myclass." The content may have carriage returns. These <div> tags won't be nested. Here's a rubular page for testing: http://rubular.com/r/vlfcikKMXk

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  • Make accordeon/toggle menu using jquery or javascript

    - by Souza
    Found a solution: $('div.divname').not(':eq(0)').hide(); Check this page: http://www.iloja.pt/index.php?_a=viewDoc&docId=19 I would like to have ONLY the first text (faqtexto) open, and the one bellow, hidden on loading (by default) This is the HTML: <div class="agendarfaq"> <div class="topfaq"></div> <div class="faqtopics"><p class="textopics">Recolha e entrega, quanto tempo?</p></div> <div class="faqtexto"> Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit, sed quia non numquam eius modi tempora incidunt ut labore et dolore magnam Quis autem vel eum iure reprehenderit qui in ea voluptate velit esse quam nihil molestiae consequatur, vel illum qui dolorem</div> <div class="faqtopics"><p class="textopics">Recolha e entrega, quanto tempo?</p></div> <div class="faqtexto"> Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit, sed quia non numquam eius modi tempora incidunt ut labore et dolore magnam Quis autem vel eum iure reprehenderit qui in ea voluptate velit esse quam nihil molestiae consequatur, vel illum qui dolorem</div> </div> The jQuery I propose: $(".faqtopics").click(function(event) { $("div.faqtexto").slideUp(100); $(this).next("div.faqtexto").slideToggle(); }); Do you suggest any other cleaner jQuery code? Any help would be welcome! Thank you very much!

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  • Javascript: previous property is undefined

    - by Matrym
    Why is it saying that "lbp is undefined" on the line of "creditText"? How do I refer to previous properties in a config file such as this? var lbp = { // Pertinant page properties, such as Author, Keywords, URL or Title page: { theURL: window.location.toString(), }, // Configurable user defaults defaults: { creditText: lbp.page.theURL } } Thanks in advance for your help

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  • How to not use JavaScript with in the elements events attributes but still load via AJAX

    - by thecoshman
    I am currently loading HTMl content via AJAX. I have code for things on different elements onclick attributes (and other event attributes). It does work, but I am starting to find that the code is getting rather large, and hard to read. I have also read that it is considered bad practice to have the event code 'inline' like this and that I should really do by element.onclick = foobar and have foobar defined somewhere else. I understand how with a static page it is fairly easy to do this, just have a script tag at the bottom of the page and once the page is loaded have it executed. This can then attach any and all events as you need them. But how can I get this sort of affect when loading content via AJAX. There is also the slight case that the content loaded can very depending on what is in the database, some times certain sections of HTML, such as tables of results, will not even be displayed there will be something else entirely. I can post some samples of code if any body needs them, but I have no idea what sort of things would help people with this one. I will point out, that I am using Jquery already so if it has some helpful little functions that would be rather sweet¬

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  • Javascript callback with AJAX + jQuery

    - by Fred
    Hey! I have this jQuery code (function () { function load_page (pagename) { $.ajax({ url: "/backend/index.php/frontend/pull_page/", type: "POST", data: {page: pagename}, success: function (json) { var parsed = $.parseJSON(json); console.log(parsed); return parsed; }, error: function (error) { $('#content').html('Sorry, there was an error: <br>' + error); return false; } }); } ... var json = load_page(page); console.log(json); if (json == false) { $('body').fadeIn(); } else { document.title = json.pagename + ' | The Other Half | freddum.com'; $("#content").html(json.content); $('#header-navigation-ul a:Contains('+page+')').addClass('nav-selected'); $('body').fadeIn(); } })(); and, guessed it, it doesn't work. The AJAX fires fine, the server returns valid JSON but the console.log(json); returns undefined and the js crashes when it gets to json.pagename. The first console.log(parsed) also returns good data so it's just a problem with the return (I think). I knew I was clutching at straws and would be extremely if this worked, but it doesn't. To be honest, I don't know how to program callback functions for this situation. Any help is greatly appreciated!

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  • HTML element to use as a Javascript message display

    - by javanix
    I have a message display field on my website that I'd like to change the value of via JS. I've been using just a textfield, disabling it, and modifying the value via a JS function (after using a little CSS to make it not look like a text field): <input type="text" id="message" style="background: white; color: black" size="50" disabled> There has to be a better way (for instance, formatting is tricky whenever the message runs over the specified size), but I can't think of it off the top of my head. Can anyone point me in a better direction? Thanks! FYI: I am doing a timer function which I'd like to look something like "HH:MM:SS | 'my message here'"

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  • Using javascript to detect browser type

    - by Duber
    I'm trying to use this line to detect browser type: IE or Firefox. alert(isBrowser("Microsoft")); but I get absolutely nothing, the alert doesn't even pop up. Not sure what I'm doing wrong. What would be the best practice way to detect browser type?

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  • SharePoint Client JavaScript Documentation

    - by G N
    I'm attempting to improve the usability of a client's SharePoint deployment via JQuery; and am hitting a brick wall when trying to find any sort of documentation of what's happening in core.js (aside from painfully digging through and trying to parse any sort of meaning out of it --all 250kb of it!!!!--) Anyone have any pointers, or documentation? EDIT: Sorry, to clarify my question, i'm familiar with using JQuery with SharePoint. My question involves hooking JQuery into SharePoint's own client API. My question is inspired by this post http://www.codefornuts.com/2009/09/forcing-sharepoint-into-asynchronous.html# ; where the author is overriding methods such as "SubmitFormPost" and "STSNavigate" in order to make the UI interaction more "AJAXy".

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  • javascript function is not getting called onclick of hx:commant button

    - by Sunny Mate
    hi i have method called test() when iu click on the commandButton the method should get called but the method is not getting called my code is as follows method **function test() { alert('ss'); return "true"; }** and method calling is <hx:commandExButton type="submit" value="Search" styleClass="action2" id="searchButton" **onclick="return test();"** action="#{pc_WorkInProgressUserGrid.doSearchButtonAction}" immediate="true </hx:commandExButton> any suggestion would be helpful

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  • asp classic and javascript to check for session status

    - by StealthRT
    Hey all, i am in need of some help with trying to figure out how to go about checking the users session and seeing if they are still logged in or not. The problem being is because i have a static page that pretty much loads everything into "tabs" using jquery. So when they use navigates the page, it really never leaves that same page they started out on. Hints my problem in trying to determine if they are still logged in or not when they click on update their information on their profile or whatnot. Any suggestions/help would be great! :o) David

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  • help understanding the concept of javascript callbacks with node.js, especially in loops

    - by Mr JSON
    hi I am just starting with node.js. I have done a little ajax stuff but nothing too complicated so callbacks are still kind of over my head. I looked at async but all I need is to run a few functions sequentially. I basically have something that pulls some json from an api, creates a new one and then does something with that. obviously i can't just run it because it runs everything at once and has an empty json. mostly they have to go sequentially but if while pulling a json from the api it can pull other json while it's waiting that is fine. I just got confused when putting the callback in a loop. what do I do with the index? i think i have seen some places that use callback inside the loop as kind of a recusive function and don't use for loops at all. simple examples would help alot thanks!

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  • How to impose maxlength on textArea in HTML , Javascript

    - by Rakesh Juyal
    I would like to have some functionality by which if i write <textarea maxlength="50"></textarea> <textarea maxlength="150"></textarea> <textarea maxlength="250"></textarea> it will automatically impose the maxlength on the textArea. If possible please donot provide the solution in JQuery. Note: This can be done if i do something like this: <textarea onkeypress="return imposeMaxLength(event, this, 110);" rows="4" cols="50"> function imposeMaxLength(Event, Object, MaxLen) { return (Object.value.length <= MaxLen)||(Event.keyCode == 8 ||Event.keyCode==46||(Event.keyCode>=35&&Event.keyCode<=40)) } copied from another thread But the point is I don't want to write onKeyPress and onKeyUp every time i declare a textArea.

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  • Providing updating suggestions list with javascript, php and ajax

    - by user1104854
    I'm trying to modify this example on making a live updating list to integrate it with my API. So, instead of using GET on the page with the form, I'd like to send it to that page via a function call. So, here's my form // message.php //function to display the hint sent from gethint.php function message_hint($hint){ echo $hint; } //displays the form for sending messages function send_message_form($to_user,$title,$message){ include 'gethint.php'; ?> <table> <form name = "send_message" method="post"> <td>Send A Message</td> <tr><td>To:</td><td><input type = "text" size="50" name="to_user" id = "to_user" value ="<? echo $to_user; ?>" onkeyup="showHint(this.value)"></td></tr> <tr><td>Title:</td><td><input type = "text" size="50" name="message_title"></td></tr> <tr><td>Message:</td><td><textarea rows="4" cols="50" name="message_details"></textarea></td></tr> <tr><td><input type="submit" name="submit_message"></td></tr> </table> </form> <? } Here's the head of message.php <head> <script> function showHint(str){ var to_user = document.getElementById("to_user").value //to_user is the id of the textbox if (str.length==0){ to_user.innerHTML=""; return; } if (window.XMLHttpRequest){// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); }else{// code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.onreadystatechange=function(){ if (xmlhttp.readyState==4 && xmlhttp.status==200){ alert(to_user) //properly displays the name via alert box to_user.innerHTML=xmlhttp.responseText; } } xmlhttp.open("GET","gethint.php?q="+to_user,true); xmlhttp.send(); } </script> </head> The page gethint.php is exactly the same, aside from this at the bottom. //echo $response //this was the original output $message = new messages; $message->message_hint($response);

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