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  • javascript regex: replace url text link with image,but not in html tags

    Hi this is my pice of code: <div style="overflow: hidden; width: 445px;">[IMG]http://i29.tinypic.com/mydog.png[/IMG] tak si to http://i29.tinypic.com/mycat.png Lorem ipsum loremai <img width="15" border="0" align="middle" src="images/smejo.gif" valign="middle"/> <img src=http://www.example.com/index.png alt> <img src="http://www.example.com/index.png" alt>     <a href="#reakcia" title="reagovat na temu"><span class="poradna-tl-reaguj"><reaction> </span></a></div> </td> </tr><img src=http://www.example.com/index.png alt><img src="http://www.example.com/index.png" alt> and i need regex pattern to replace ONLY text image links with image without touch of inner url tags. But i can't use "Lookbehind" or possessive quantifiers because JS don't support them=/ So i want to catch only "http://i29.tinypic.com/mydog.png" and "http://i29.tinypic.com/mycat.png". I using array method to replacing (will be greasemonkey script.) Many Thanks

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  • Javascript: prototypal inheritance and the prototype property

    - by JanD
    Hi, I have a simple code fragment in JS working with prototype inheritance. function object(o) { function F() {} F.prototype = o; return new F(); } //the following code block has a alternate version var mammal = { color: "brown", getColor: function() { return this.color; } } var myCat = object(mammal); myCat.meow = function(){return "meow";} that worked fine but adding this: mammal.prototype.kindOf = "predator"; does not. ("mammal.prototype is undefined") Since I guessed that object maybe have no prototype I rewrote it, replacing the var mammal={... block with: function mammal() { this.color = "brown"; this.getColor = function() { return this.color; } } which gave me a bunch of other errors: "Function.prototype.toString called on incompatible object" and if I try to call _myCat.getColor() "myCat.getColor is not a function" Now I am totally confused. After reading Crockford, and Flanagan I did not get the solution for the errors. So it would be great if somebody knows... - why is the prototype undefined in the first example (which is foremost concern; I thought the prototype of explicitly set in the object() function) - why get I these strange errors trying to use the mammal function as prototype object in the object() function? Edit by the Creator of the Question: These two links helped a lot too: Prototypes_in_JavaScript on the spheredev wiki explains the way the prototype property works relativily simple. What it lacks is some try-out code examples. Some good examples are provided by Morris John's Article. I personally find the explanations are not that easy as in the first link, but still very good. The most difficult part even after I actually got it is really not to confuse the .prototype propery with the internal [[Prototype]] of an object.

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  • Weird Javascript Regex Replace Backreference Behavior

    - by arshaw
    why does the following js expression: "test1 foo bar test2".replace(/foo.bar/, "$'") result in the following string? "test1 test2 test2" is the $' in the replace string some sort of control code for including everything after the match??? this behavior was screwing with me most of the day. can anyone explain this? thanks a lot ps- this is the case in all browsers i've tested

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  • Convert Double to String without precision loss in javascript

    - by holger
    I would like to convert a floating point variable to a string without losing any precision. I.e. I would like the string to have the same information as my floating point variable contains, since I use the output for further processing (even if it means that the string will be very long and readable). To put this more clearly, I would like to have functions for cyclic conversion var dA = 323423.23423423e4; var sA = toString(dA); var dnA = toDouble(sA); and I would like dnA and dA to be equal Thanks PS: Sources on the internet usually talk about how to round strings but I have not found information on exact representation. Also I am not interested in Arbitrary Precision calculations, I just need double precision floating point arithmetic.

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  • Scoping inside Javascript anonymous functions

    - by DCD
    I am trying to make a function return data from an ajax call that I can then use. The issue is the function itself is called by many objects, e.g.: function ajax_submit (obj) { var id = $(obj).attr('id'); var message = escape ($("#"+id+" .s_post").val ()); var submit_string = "action=post_message&message="+message; $.ajax({ type: "POST", url: document.location, data: submit_string, success: function(html, obj) { alert (html); } }); return false; } Which means that inside the anonymous 'success' function I have no way of knowing what the calling obj (or id) actually are. The only way I can think of doing it is to attach id to document but that just seems a bit too crude. Is there another way of doing this?

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  • Javascript function push problem

    - by Stefan
    Hello i've following JS function. responseData:function(resp){ this.jsondata = eval('(' + resp + ')'); this.propList = []; for (var i = 0;i<this.jsondata.length;i++) { for (obj in this.jsondata[i]) { alert(obj); //shows the property name of obj this.propList.push({ obj : this.jsondata[i][obj] //insert only simple obj string }); } } return this.propList; } I want to insert in my propList the property name and the value, but instead inserting the property name this function inserts simple 'obj' as a string. What i'm doing wrong? greetings Stefan

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  • Rhino and Javascript 1.8?

    - by Scott
    Is it possible to have Rhino use a newer implementation of JS than 1.7? Do we have to wait for mozilla to do this, or is there a community project that has taken the lead? Thanks.

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  • Create multiple modal windows with javascript (+jQuery), what is the best practice to indentify wind

    - by Kirzilla
    Hello, When creating every instance of Window object I should bind close button of each window to closing this window. But how should I identify windows? Should I create unique id for each Window instance or maybe another way? What is the best way to create such identifiers, maybe some kind of singleton object with id parameter which should be incremented each time when window is created? Thank you.

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  • My images aren't updating immediately upon changing their src in javascript

    - by Dale
    I'm using the function below to change the img src. It's an array of ten images. When going through the loop, using break points, the images don't all update on the page immediately. Some of them do. If I inspect the unchanged images on the page (while paused at a breakpoint), the src has changed, but the image hasn't changed yet. All of the unchanged images get updated correctly when the function ends. Anyone know why they don't all get updated instantly and how I can force them to update? Also, is there a way I can hold off the updates of all of them until they're all reassigned and thus have them all update on the "simultaneously"? Here's my function. function mainFunction(){ finalSet = calculateSet(); for ( var int = 0; int < finalSet.length; int++) { var fileName = "cardImg" + (int); document.getElementById(fileName).src = "images/cards/" + finalSet[int].name + ".jpg"; } } Thanks for the help. Dale

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  • Single Page Navigation w/ Javascript and Back Button

    - by Khan
    Ok, so I have a "navigation" div and "content" div. When something on the navigation is clicked, I fade in the content div with the new data. Now, I would like to have the old data returned when the user hits the "back" button on his/her browser, but I'm having a hard time doing this. I know I can set the content to be a named anchor, so they stay on the same page with a breadcrumb trail. However, that's as far as I get. Can I listen for a back button click? Can I set content to display when a certain anchor name is reached? Thanks in advance for your help, SO.

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  • How would you organize this Javascript?

    - by Anurag
    How do you usually organize complex web applications that are extremely rich on the client side. I have created a contrived example to indicate the kind of mess it's easy to get into if things are not managed well for big apps. Feel free to modify/extend this example as you wish - http://jsfiddle.net/NHyLC/1/ The example basically mirrors part of the comment posting on SO, and follows the following rules: Must have 15 characters minimum, after multiple spaces are trimmed out to one. If Add Comment is clicked, but the size is less than 15 after removing multiple spaces, then show a popup with the error. Indicate amount of characters remaining and summarize with color coding. Gray indicates a small comment, brown indicates a medium comment, orange a large comment, and red a comment overflow. One comment can only be submitted every 15 seconds. If comment is submitted too soon, show a popup with appropriate error message. A couple of issues I noticed with this example. This should ideally be a widget or some sort of packaged functionality. Things like a comment per 15 seconds, and minimum 15 character comment belong to some application wide policies rather than being embedded inside each widget. Too many hard-coded values. No code organization. Model, Views, Controllers are all bundled together. Not that MVC is the only approach for organizing rich client side web applications, but there is none in this example. How would you go about cleaning this up? Applying a little MVC/MVP along the way? Here's some of the relevant functions, but it will make more sense if you saw the entire code on jsfiddle: /** * Handle comment change. * Update character count. * Indicate progress */ function handleCommentUpdate(comment) { var status = $('.comment-status'); status.text(getStatusText(comment)); status.removeClass('mild spicy hot sizzling'); status.addClass(getStatusClass(comment)); } /** * Is the comment valid for submission */ function commentSubmittable(comment) { var notTooSoon = !isTooSoon(); var notEmpty = !isEmpty(comment); var hasEnoughCharacters = !isTooShort(comment); return notTooSoon && notEmpty && hasEnoughCharacters; } // submit comment $('.add-comment').click(function() { var comment = $('.comment-box').val(); // submit comment, fake ajax call if(commentSubmittable(comment)) { .. } // show a popup if comment is mostly spaces if(isTooShort(comment)) { if(comment.length < 15) { // blink status message } else { popup("Comment must be at least 15 characters in length."); } } // show a popup is comment submitted too soon else if(isTooSoon()) { popup("Only 1 comment allowed per 15 seconds."); } });

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  • How to combine these two JavaScript functions?

    - by user289346
    var curtext = "View large image"; function changeSrc() { if (curtext == "View large image") { document.getElementById("boldStuff").innerHTML = "View small image"; curtext="View small image"; } else { document.getElementById("boldStuff").innerHTML = "View large image"; curtext = "View large image"; } } var curimage = "cottage_small.jpg"; function changeSrc() { if (curimage == "cottage_small.jpg") { document.getElementById("myImage").src = "cottage_large.jpg"; curimage = "cottage_large.jpg"; } else { document.getElementById("myImage").src = "cottage_small.jpg"; curimage = "cottage_small.jpg"; } } </script> </head> <body> <!-- Your page here --> <h1> Pink Knoll Properties</h1> <h2> Single Family Homes</h2> <p> Cottage:<strong>$149,000</strong><br/> 2 bed, 1 bath, 1,189 square feet, 1.11 acres <br/><br/> <a href="#" onclick="changeSrc()"><b id="boldStuff" />View large image</a></p> <p><img id="myImage" src="cottage_small.jpg" alt="Photo of a cottage" /></p> </body> I need help, how to put as one function with two arguments? That means when you click, the image and text both will be change. Thank you! Bianca

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  • Javascript: prototypeal inheritance and the prototype proprity

    - by JanD
    Hi, I have a simple code fragment in JS working with prototype inheritance. function object(o) { function F() {} F.prototype = o; return new F(); } //the following code block has a alternate version var mammal={ color: "brown", getColor: function(){ return this.color; } } var myCat = object(mammal); myCat.meow = function(){return "meow";} that worked fine but adding this: mammal.prototype.kindOf = "predator"; does not. ("mammal.prototype is undefined") Since I guessed that object maybe have no prototype I rewrote it, replacing the var mammal={... block with: function mammal(){ this.color="brown"; this.getColor = function(){return this.color;} } which gave me a bunch of other errors: "Function.prototype.toString called on incompatible object" and if I try to call _myCat.getColor() "myCat.getColor is not a function" Now I am totally confused. After reading Crockford, and Flanagan I did not get the solution for the errors. So it would be great if somebody knows... - why is the prototype undefined in the first example (which is foremost concern; I thought the prototype of explicitly set in the object() function) - why get I these strange errors trying to use the mammal function as prototype object in the object() function?

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  • Stop a postback in javascript

    - by jmpena
    hello, i have an ASP webform with a JQuery Thickbox, i have an image that opens the thickbox when user click. once open the thickbox it shows me a grid with several rows and a button to select one and after the user select the record it returns to the main page the recordselected and cause a __doPostBack() BUT! sometimes in IE6 it stay loading the postback and never ends i have to refresh the page and when it refresh it shows everything fine. but i dont want the postback stay loading AND it does not happend always. i have to call a __doPostBack because i need to find info related to the selected record. thanks.

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  • converting a javascript string to a html object

    - by Lina
    Hi everyone, can I convert a string to a html object? like: string s = '<div id="myDiv"></div>'; var htmlObject = s.toHtmlObject; so that i can later on get it by id and do some changing in its style var ho = document.getElementById("myDiv").style.marginTop = something; Thanx a million in advance, Lina

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  • Hy, problem mantaining big javascript code.

    - by Totty
    I have more than 1000 lines in a big jquery plugin, that is actually a big class, that inludes some others classes, but they have to be in the same file. I inlcude a piece of code. If you have another way to simplify the code.. The actual problem is that i have a gallery with a lot of things, is dynamic with smart ajax data loading so it requires a lot of classes to use it properly and to cache the data. (function($){ var TottysGallery = function(element, options, data){ var Core = new function(){...}; var Core2 = new function(){...}; var Core3 = new function(){...}; var Core = function(){...}; };

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  • javascript: what does this syntax means?

    - by user1067138
    it is like this: (function () { //codes here })(); here is an example: (function () { var D = TED.EditorCore, E = TED.extend, A = TED.EditorInstanceManager, B = TED.augmentObject; window.TED["SimpleEditor"] = C; function C(F) { C.superclass.call(this, F) } C.defaultConfig = { height: "100px", width: "400px", //blablabla... flashNumLimit: 10, didaDelay: 300, imageWidthLimit: 570 }; E(C, D, { getContentLength: function () { return Math.ceil(this.filteHTML(this.editArea.innerHTML, ["img", "br"]).replace(/<img[^>]*>/gi, "mm").replace(/<br[^>]*>/gi, "m").replace(/&nbsp;/gi, "m").replace(/[^\x00-\xff]/g, "mm").length / 2) }, filteEditHTML: function () { return html = this.editArea.innerHTML.replace(/_moz_dirty=""/gi, "").replace(/\[/g, "[[-").replace(/\]/g, "-]]").replace(new RegExp("<\\/?(?:br[^>]*)>", "gi"), "[$1]").replace(new RegExp('<span([^>]*class="?at"?[^>]*)>', "gi"), "[span$1]").replace(new RegExp('<img([^>]*class="?(?:' + this.config.emptyClassName + "|" + this.config.smileyClassName + ')"?[^>]*)>', "gi"), "[img$1]").replace(/<[^>]*>/g, "").replace(/\[\[\-/g, "[").replace(/\-\]\]/g, "]").replace(new RegExp("\\[(/?(?:br|img|span)[^\\]]*)\\]", "gi"), "<$1>") }, filteSubmitHTML: function () { this.reLayout(); var G = this.editArea.innerHTML.replace(/_moz_dirty=""/gi, "").replace(/\[/g, "[[-").replace(/\]/g, "-]]").replace(new RegExp("<(/?(?:" + this.submitValidHTML.join("|") + ")[^>]*)>", "gi"), "[$1]").replace(new RegExp('<img([^>]*class="?(?:' + this.config.imageClassName + "|" + this.config.smileyClassName + "|" + this.config.flashClassName + "|" + this.config.musicClassName + ')"?[^>]*)>', "gi"), "[img$1]").replace(/<[^>]*>/g, "").replace(/\[\[\-/g, "[").replace(/\-\]\]/g, "]").replace(new RegExp("\\[(/?(?:" + this.submitValidHTML.join("|") + "|img)[^\\]]*)\\]", "gi"), "<$1>"); var F = document.createElement("div"); F.innerHTML = G; this.parseURL(F); return F.innerHTML } }); B(C, A) })(); what exactly does (funtion (){})(); do?

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  • Javascript ContextMenu on a TD

    - by Dave
    If I attach a context menu to a td, it fires okay for text in the TD, but if I add a div to the TD, the context menu will not fire when right clicking on the div. How can I make the context menu fire when anything, data or divs, are right clicked in the td?

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  • Javascript - Concatenate Multiple NodeLists Together

    - by Emtucifor
    I was originally asking for an elegant way to simulate the Array.concat() functionality in IE or older browsers, because it seemed that concat was not supported. Only, of course it is and the reason the object didn't support it is because it wasn't an array. Oops! getElementsByTagName returns a NodeList, not an array. The real question, then, is: what's a good way to get a single list of all the form elements in a document (input, select, textarea, button) to loop through them? An array isn't required... a single NodeList would be perfect, too. Note that I'm using IE6 as this is for a corporate intranet (soon IE8 though).

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  • Dynamically create numbered divs in Javascript + Jquery show/hide

    - by Vafello
    I would like to create numbered divs (such as eventbox1, eventbox2, etc.) in a loop and then have an option to show and hide them. for (i=0; i<8; i++) { var html = '<div id="eventbox"></div>'; content.innerHTML += html; } I have also the following code in Jquery UI: function ShowHide(){ $("#eventbox").animate({"height": "toggle"}, { duration: 1000 }); } <a onclick="ShowHide(); return false;" href="" id="dialog_link">Show/Hide</a> I was wondering how to enable show/hide option of each div in turn.

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  • jquery/javascript - image resize to fit screen

    - by alberto
    not an expert programmer. i created this code to resize photos/images to fit the screen, considering the space available for the nav bar. the script happens on load of image, and on click of the navigation. is it a good piece of code, or could it be done better? any browser issues? in the html: $(document).ready(function(){ $("#photo").load(function(){ resize(); }); $(".navigation img").click(function(){ var imgPath = $(this).attr("src"); $("#photo").attr({ src: imgPath }); resize(); return false; }); }); while this is my function resize: resize = function() { var borderVt=150; //value based on css style. bottom bar + padding of photoContain var borderHz=40; //value based on css style photoContain padding $("#photo").css("width", "auto").css("height", "auto"); // Remove existing CSS $("#photo").removeAttr("width").removeAttr("height"); // Remove HTML attributes var origSizeW = $("#photo").width(); var origSizeH = $("#photo").height(); var ratioVt=(origSizeW/origSizeH); var ratioHz=(origSizeH/origSizeW); var winW = $(window).width(); var winH = $(window).height(); var screenSizeW=Math.round(winW-borderHz); var screenSizeH=Math.round(winH-borderVt); if (origSizeW>=origSizeH){ var newHeight = Math.round(screenSizeW*ratioHz); if (newHeight <= screenSizeH){ $("#photo").css("width", screenSizeW); // Set new width $("#photo").css("height", newHeight); } else{ $("#photo").css("height", screenSizeH); } } else{ $("#photo").css("height", screenSizeH); // Set new height } };

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  • Javascript onunload form submit isn't submitting data

    - by Kevin
    I currently have form that checks if a user has unsubmitted changes when they leave the page with a function called through the onunload event. Here's the function: function saveOnExit() { var answer = confirm("You are about to leave the page. All unsaved work will be lost. Would you like to save now?"); if (answer) { document.main_form.submit(); } } And here's the form: <body onunload="saveOnExit()"> <form name="main_form" id="main_form" method="post" action="submit.php" onsubmit="saveScroll()"> <textarea name="comments"></textarea> <input type="submit" name="submit2" value="Submit!"/> </form> I'm not sure what I'm doing wrong here. The data gets submitted and saved in my database if I just press the submit button for the form. However, trying to submit the form through the onunload event doesn't result in anything being stored, from what I can tell. I've tried adding onclick alerts to the submitt button and onsubmit alerts to the form elements and I can verify that the submit button is being triggered and that the form does get submitted. However, nothing gets passed stored in the database. Any ideas as to what I'm doing wrong? Thanks.

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