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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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  • javascript date validation

    - by Bharanikumar
    Assume in my text box user enter like 18-06-2010 , Validation RULE if date is greater then current date then program should through the validation error like , PELASE ENTER PAST OR CURRENT DATE, DONT CHOOSE FUTURE DATE , Thanks

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  • Why can't I roll a loop in Javascript?

    - by Carl Manaster
    I am working on a web page that uses dojo and has a number (6 in my test case, but variable in general) of project widgets on it. I'm invoking dojo.addOnLoad(init), and in my init() function I have these lines: dojo.connect(dijit.byId("project" + 0).InputNode, "onChange", function() {makeMatch(0);}); dojo.connect(dijit.byId("project" + 1).InputNode, "onChange", function() {makeMatch(1);}); dojo.connect(dijit.byId("project" + 2).InputNode, "onChange", function() {makeMatch(2);}); dojo.connect(dijit.byId("project" + 3).InputNode, "onChange", function() {makeMatch(3);}); dojo.connect(dijit.byId("project" + 4).InputNode, "onChange", function() {makeMatch(4);}); dojo.connect(dijit.byId("project" + 5).InputNode, "onChange", function() {makeMatch(5);}); and change events for my project widgets properly invoke the makeMatch function. But if I replace them with a loop: for (var i = 0; i < 6; i++) dojo.connect(dijit.byId("project" + i).InputNode, "onChange", function() {makeMatch(i);}); same makeMatch() function, same init() invocation, same everything else - just rolling my calls up into a loop - the makeMatch function is never called; the objects are not wired. What's going on, and how do I fix it? I've tried using dojo.query, but its behavior is the same as the for loop case.

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  • javascript get child by id

    - by Senica Gonzalez
    <div onclick="test(this)"> Test <div id="child">child</div> </div> I want to change the style of the child div when the parent div is clicked. How do I reference it? I would like to be able to reference it by ID as the the html in the parent div could change and the child won't be the first child etc. function test(el){ el.childNode["child"].style.display = "none"; } Something like that, where I can reference the child node by id and set the style of it. Thanks.

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  • Javascript callback function does not work in IE8!

    - by Abhishek
    I have a callback function in my open social application which fetches remote date. This works perfect on Crome and Mozila browers but not in IE8. Following is the example for the same, help will be appriciated: This funcation: gadgets.io.makeRequest(url, response, params) makes the callback call and following function process the responce: function response(obj) { var str = obj.text; var offerDtlPg = str.substr(0, str.length); document.getElementById('pplOfrDetls').innerHTML = offerDtlPg; };

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  • Get ExternalInterface definitions in Javascript

    - by Jamal Fanaian
    Is there a way to get a list of the exposed functions from a Flash object? For example, you could get a list of all methods in an object by executing: for (var i in object) { if (typeof object[i] == "function") { console.log(i); } } The only issue is that this won't expose any methods registered through the ExternalInterfaces API. I can try and see if the function exists (object['method']) and it tells me it is a function, but I would have to guess every existing method in this manner. NOTE: Obviously, I don't have access to the actionscript.

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  • How to add <font> with Javascript?

    - by Fernando SBS
    FM_log(3,"rp_insertTable() called"); var farmTable = dom.cn("table"); var ftableBody = dom.cn("tbody"); var i; var maximize = GM_getValue("Maximize_" + suffixGlobal, 0); farmTable.className = "FMtbg"; farmTable.id = "farmMachineTable"; farmTable.setAttribute('cellpadding', 2); farmTable.setAttribute('cellspacing', 1); farmTable.style.marginBotton = "12px"; how can I add to that table, I mean, edit the HTML in the middle of that table and add "< font " ??? (ps: how can I add < code here without it being interpreted as code?)

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  • Is linking a <div> using javascript acceptable?

    - by jhchawk
    I want to link an entire <div>, but CSS2 does not support adding an href to a div (or span for that matter). My solution is to use the onClick property to add a link. Is this acceptable for modern browsers? Example code: <div class="frommage_box" id="about_frommage" onclick="location.href='#';"> <div class="frommage_textbox" id="ft_1"><p>who is Hawk Design?</p></div> My test page is at http://www.designbyhawk.com/pixel. Updated daily. Thanks for the help.

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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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  • Generate and download a text file in javascript

    - by Mark B
    All my research so far suggests this can't be done, but I'm hoping someone here has some cunning ideas. I have a form on a website which allows users to bulk upload lots of URLs to add to a list on the server. There's quite a lot of server-side processing to do on each URL, so to avoid timeouts and to display progress, I've implemented the upload using jQuery to submit the URLs one at a time using ajax. This is all working nicely. However, part of the processing on each URL is deduplicating it against the complete list. The ajax call returns a status indicating either a successful upload or a rejection due to duplication. As the upload progresses, I tell the user how many URLs have been rejected as duplicates (along with overall progress and ETA). The problem now is how to give the user a complete list of the failed duplicate URLs. I've kept them in an array in my jQuery, and would like the user to be able to click on a link on the form to download a text file containing those URLs. Is this possible just using client-side processing? The server-side processing basically handles a single keyword at a time. I'd rather not have to store the duplicates in a database table with some kind of session key which gets sent with every ajax call, and is then used at the end to generate the text file server-side (and then gets cleaned up some time later). I can see how to do this, but it seems very clunky and a bit 20th century.

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  • Can anyone explain this snippet of Javascript?

    - by karthick6891
    Can anyone explain the following code? Forget the sine and cosine parts. Is it trying to build a space for the object? objectsInScene = new Array(); for (var i=space; i<180; i+=space) { for (var angle=0; angle<360; angle+=space) { var object = {}; var x = Math.sin(radian*i)*radius; object.x = Math.cos(angle*radian)*x; object.y = Math.cos(radian*i)*radius; object.z = Math.sin(angle*radian)*x; objectsInScene.push(object); } }

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  • Javascript: gradually adding to string in each iteration ?

    - by Kim Jong Woo
    I have a string like this that is split up: var tokens = "first>second>third>last".split(">"); What I would like in each iteration is for it to return Iteration 0: "last" Iteration 1: "third>last" Iteration 2: "second>third>last" Iteration 3: "first>second>third>last" I am thinking of using decrementing index for loop.... but is there a more efficient approach ? for (int w = tokens.length-1; w == 0; w--) { }

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  • Safari javascript cookie issue

    - by Aaron Moodie
    I've hit a bit of a weird issue in Safari in regards to setting a js cookie. The cookie itself is just a rgb colour value, which gets set using .click(), and is working fine in Chrome and Firefox, yet in Safari the value of the cookie is incomplete, showing up as rgb(193 instead of rgb(193, 184, 76) as the other browsers do. The jQuery function I'm using to set the cookie is: $('.project_link a').click(function() { var link_colour = $(this).css("color"); document.cookie = "colour="+link_colour+";expires=;path=/"; });

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  • delete row from result set in web sql with javascript

    - by Kaijin
    I understand that the result set from web sql isn't quite an array, more of an object? I'm cycling through a result set and to speed things up I'd like to remove a row once it's been found. I've tried "delete" and "splice", the former does nothing and the latter throws an error. Here's a piece of what I'm trying to do, notice the delete on line 18: function selectFromReverse(reverseRay,suggRay){ var reverseString = reverseRay.toString(); db.transaction(function (tx) { tx.executeSql('SELECT votecount, comboid FROM counterCombos WHERE comboid IN ('+reverseString+') AND votecount>0', [], function(tx, results){ processSelectFromReverse(results,suggRay); }); }, function(){onError}); } function processSelectFromReverse(results,suggRay){ var i = suggRay.length; while(i--){ var j = results.rows.length; while(j--){ console.log('searching'); var found = 0; if(suggRay[i].reverse == results.rows.item(j).comboid){ delete results.rows.item(j); console.log('found'); found++; break; } } if(found == 0){ console.log('lost'); } } }

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  • JavaScript Object literal notation confusion

    - by Ding
    In Firefox console, this code will generate error: {"d" : ["bankaccountnumber", "$1234.56"] } SyntaxError: invalid label { message="invalid label", more...} this code works just fine {d : ["bankaccountnumber", "$1234.56"] } ["bankaccountnumber", "$1234.56"] this code works fine as well var act = {'d' : ["bankaccountnumber", "$1234.56"] } a.d Can someone help to explain why is the diference? thanks!

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  • Chrome and Safari strange behaviour in Javascript

    - by mck89
    Hi, i've written this peace of code: var a=function(){ }; a.name="test"; a.prop="test2"; Now if i debug the code with the console: console.log(a.name); console.log(a.prop); In Firefox i get a.name="test" and a.prop="test2", while in Safari and Chrome i get a.prop="test2" but a.name="". It seems that there's no way to assign a "name" property on a function in Webkit browsers. Do you know why? But the most important thing is, do you know a workaround for that?

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  • convert htmlelement to string for comparison javascript

    - by Jamex
    Hi, I am using a function that obtains a target element id at onclick. Example, if I click on the text element that has the id of 'help'. var click = (e && e.target) || (event && event.srcElement); The var click would contain the ref to the id of "help". I want to compare the var click to the string 'help' using the if statement below. if (click == 'about') {do something} The comparison does not work because the var click is not a string. When I use the alert(click) to debug, it shows click as "object HTMLElement". How would you compare whether the id 'help' is obtained from var click? I could write out something like if (click == document.getElementById('help')) {do something} but that would make a long statement. also if the var click is document.getElementById('help'), how would you make a new var "show" as document.getElementById('showhelp') basically, I want to use the same function to generate dynamic responses to each element that was clicked on, and not having to create a separate function for each element.

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  • Where can I find a proper JavaScript beautifier

    - by Ernelli
    I have used http://jsbeautifier.org/ successfully using Rhino and ant, but the problem is that it is not deterministic. If you run the beautifier twice on a file the result is different from each time, e.g. each pass inserts additional array intendation on some lines. I have spent a lot of time debugging the code in beautify.js and have made some workarounds for comment handling, but the array indentation bug is annoying. Is there a correct and properly working JS code formatter anywhere that can be used as part of a source code indentation verification system? EDIT I have now tested with preserve-array-formating disabled, and it seems that it solves the problem. Too bad, since preserve-array-formating is quite useful with large array constructs.

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  • javascript ajax help

    - by ngreenwood6
    I have the following code. var d3_ad = 1; function displayD3Ad(){ var query_string = '?d3_ad='+d3_ad; query_string += '&location='+escape(location); //document.write('<iframe src="index.php'+query_string+'"></iframe>'); var data = httpRequest('http://localhost/test/index.php','GET',query_string); document.write(data); } function httpRequest(strURL,type,query) { var request = false; if (window.XMLHttpRequest) {// Mozilla/Safari request = new XMLHttpRequest(); } else if (window.ActiveXObject) { //Internet Explorer request= new ActiveXObject("Microsoft.XMLHTTP"); } request.open(type, strURL + query, true); request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded'); request.onreadystatechange = function() { if (request.readyState == 4) { return request.responseText; } } request.send(null); } displayD3Ad(); now when it writes out the data it is saying undefined. It seems like it isnt returning the data. I looked in firebug and it completes and shows the response that shoudl be there. Any help is appreciated. I just need to set the data variable so that I can use it later on.

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  • Javascript: Make Rows Draggable Through Input Field Handles

    - by Corey O.
    I have created a table with draggable rows. Unfortunately, most of the rows are covered with a large textbox input element. In order to drag the rows, you have to grab the row on the very edge just outside of the textbox. Is there a way to allow the rows to be grabbed through the textboxes without destroying the textbox functionality? (i.e. relay the mouse drag event, but not the mouseclick event?)

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  • How does a javascript closure work ?

    - by e-satis
    Like the old Albert said : "If you can't explain it to a six-year old, you really don't understand it yourself.”. Well I tried to explain JS closures to a 27 years old friend and completely failed. Can anybody consider than I am 6 and strangely interested in that subject ? EDIT : I have seen the scheme example given in SO, and it did not help.

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