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  • how to code client-side call to webservice that calls automatically every few seconds

    - by Bob Jones
    I have a webservice that I want to call from the browser every few seconds to see if there are any notification messages in the database that should be displayed on the screen. We have the JSON code working to display the messages in a JavaScript function after an Async Postback, but this only executes after a page turn. I want it to execute every 10-15 seconds as well. A code sample would be very helpful.

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  • Can this be improved? Scrubing of dangerous html tags.

    - by chobo2
    I been finding that for something that I consider pretty import there is very little information or libraries on how to deal with this problem. I found this while searching. I really don't know all the million ways that a hacker could try to insert the dangerous tags. I have a rich html editor so I need to keep non dangerous tags but strip out bad ones. So is this script missing anything? It uses html agility pack. public string ScrubHTML(string html) { HtmlDocument doc = new HtmlDocument(); doc.LoadHtml(html); //Remove potentially harmful elements HtmlNodeCollection nc = doc.DocumentNode.SelectNodes("//script|//link|//iframe|//frameset|//frame|//applet|//object|//embed"); if (nc != null) { foreach (HtmlNode node in nc) { node.ParentNode.RemoveChild(node, false); } } //remove hrefs to java/j/vbscript URLs nc = doc.DocumentNode.SelectNodes("//a[starts-with(translate(@href, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz'), 'javascript')]|//a[starts-with(translate(@href, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz'), 'jscript')]|//a[starts-with(translate(@href, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz'), 'vbscript')]"); if (nc != null) { foreach (HtmlNode node in nc) { node.SetAttributeValue("href", "#"); } } //remove img with refs to java/j/vbscript URLs nc = doc.DocumentNode.SelectNodes("//img[starts-with(translate(@src, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz'), 'javascript')]|//img[starts-with(translate(@src, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz'), 'jscript')]|//img[starts-with(translate(@src, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz'), 'vbscript')]"); if (nc != null) { foreach (HtmlNode node in nc) { node.SetAttributeValue("src", "#"); } } //remove on<Event> handlers from all tags nc = doc.DocumentNode.SelectNodes("//*[@onclick or @onmouseover or @onfocus or @onblur or @onmouseout or @ondoubleclick or @onload or @onunload]"); if (nc != null) { foreach (HtmlNode node in nc) { node.Attributes.Remove("onFocus"); node.Attributes.Remove("onBlur"); node.Attributes.Remove("onClick"); node.Attributes.Remove("onMouseOver"); node.Attributes.Remove("onMouseOut"); node.Attributes.Remove("onDoubleClick"); node.Attributes.Remove("onLoad"); node.Attributes.Remove("onUnload"); } } // remove any style attributes that contain the word expression (IE evaluates this as script) nc = doc.DocumentNode.SelectNodes("//*[contains(translate(@style, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz'), 'expression')]"); if (nc != null) { foreach (HtmlNode node in nc) { node.Attributes.Remove("stYle"); } } return doc.DocumentNode.WriteTo(); }

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  • 2-col layout, one col scrolls vertical, other is fixed. Both scroll horizontal.

    - by Victor P
    Im trying to do a 2 column layout where the left column is very long vertically, and the right column is very long horizontally. When I scroll vertically, I want to move up and down the left column while the right one stays fixed. When I scroll horizontally, both columns move left-right (normal behaviour) I hope this drawing explain it more (sorry for the bad quality): Is this possible to do using only css? If not, how can I do it with javascript? Thanks

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  • How do I get the current time in a Windows 7 gadget?

    - by norlando02
    For my first windows gadget I'm trying to make one that displays the current time and date. The code below is what I have, but I can't figure out why the javascript is not running. Any ideas? <html> <head> http-equiv="Content-Type" content="text/html; charset=Unicode" /> <title>Clock</title> <style type="text/css"> body { width: 130px; height: 60px; margin: 1 1 1 2; } body { font-family: Segoe UI, Arial; font-size: 11px; font-weight: bold; white-space: nowrap; } </style> <script type="text/javascript"> var background; var interval; var connection_id; var timeZone; var now; function load() { try { interval = 1000; connection_id = 0; timeZone = System.Time.currentTimeZone; update(); } catch(e){} } function update() { try { now = new Date(Date.parse(System.Time.getLocalTime(timeZone))); curDate.innerHTML = now.format('M jS, Y'); curTime.innerHTML = now.format('h:i:s A'); clearTimeout(connection_id); connection_id = setTimeout("update()", interval); } catch(e) {} </script> </head> <body onload="load()"> <div id="curDate"> </div> <div id="curTime"> </div> </body> </html>

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  • Download file using ajax and webservice

    - by megabyte
    Hi All There is this 3rd party webservice. One of the public webmethods available is a GetDocument() method. This method returns a Document object. The Document object has properties for File(byte[]), ContentType(string) ect. My Question : Can I subscribe to this service using javascript(mootools) + ajax + JSON, return the document object, in this case an excel document, and force the file download?

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  • rss help in iphone development

    - by Lane
    Since my last question was deleted without giving me a chance to reply: I want to build a similar rss parser feed to: http://misc.inexistent.org/ontd/ Can anyone give me really good tutorials that I could build a similar iphone app for my rss feed. I can see it uses jquery, javascript, and ajax. If any can check out the code to head me in the right direction. Thanks!

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  • CSS Dynamic Margin on Window Resize

    - by korymath
    Can I dynamically ensure that the content always remains centered in the window pane on this website? Right now it uses a static margin-left on the .items class, and it uses jquery tools. http://andstones.ca/newsite/ Can I do it in just CSS or CSS and Javascript? Thanks, Kory

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  • Get pixel color with Rails or anything else

    - by ulf
    I'd like to build a webapp in Rails in which I'd like to determine every pixel's color of a given image (JPEG). Is there any possibility to do that with Rails or JavaScript? The goal is to write an algorithm which determines the "middle color" of the image and uses it for background color of the site. Any suggestion would be appreciated.

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  • PHP Beginner: How to pass PHP variable from one PHP code segment to another ?

    - by Misha Moroshko
    I have index.php which uploads a file to server and sets several PHP variables (like $target_folder_and_file_name). index.php also has the following line (it was originally index.html): <script language="JavaScript" src="main.js.php"></script> After index.php returned to the browser, the browsers asks for main.js.php from the server (right?). Can I access somehow $target_folder_and_file_name from the PHP code in main.js.php ?

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  • Calling a function when a scrollbar appears in an IFrame

    - by chris
    I got an IFrame, in the onload event i set the height of the frame: function resizeFrame() { $("#iframeID").height($("#iframeID").contents().find("body").outerHeight(true)); } Problem is: When the content of the frame is increasing without a postback (javascript or Async Postback with Ajax), a scrollbar appears. I found a solution for Firefox: document.getElementById("iframeID").contentWindow.addEventListener("overflow", resizeFrame, false); But i can't find a solution for IE 7+8 Anyone got an idea?

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  • Dynamic positioning inside relative div

    - by ian
    I'm trying to get a color picker javascript widget working in a page with a bunch of "stuff" in it that I can't change. Some of the "stuff" is causing the color picker to appear well below the link when clicked. I've reduced it to a simple example below. <html> <head> <script type="text/javascript"> function setPos(aname,dname) { var o=document.getElementById(aname); var ol=o.offsetLeft; while ((o=o.offsetParent) != null) { ol += o.offsetLeft; } o=document.getElementById(aname); var ot=o.offsetTop + 25; while((o=o.offsetParent) != null) { ot += o.offsetTop; } document.getElementById(dname).style.left = ol + "px"; document.getElementById(dname).style.top = ot + "px"; } </script> <style> h1 {height: 50px;} #divMain {position: relative;} </style> </head> <body> <h1></h1> <div id="divMain"> <a href="#" onClick="setPos('link1','div1');return false;" name="link1" id="link1">link 1</a> <div id="div1" style="position:absolute;border-style:solid;left:200px;top:200px;">div 1</div> </div> </body> </html> What's supposed to happen is when you click "link 1", "div1" should move directly below "link 1". What actually happens is that "div 1" appears well below "link 1". If you remove position: relative; from the CSS definition for divMain, "div 1" is positioned correctly. How can I position "div 1" directly beneath "link 1" without removing position: relative;?

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  • How to set cursor at the end in a TEXTAREA? (by not using jQuery)

    - by Brian Hawk
    Is there a way to set the cursor at the end in a TEXTAREA tag? I'm using Firefox 3.6 and I don't need it to work in IE or Chrome. JavaScript is ok but it seems all the related answers in here use onfocus() event, which seems to be useless because when user clicks on anywhere within textarea, Firefox sets cursor position to there. I have a long text to display in a textarea so that it displays the last portion (making it easier to add something at the end).

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  • div refresh without click of the button

    - by fusion
    how do i make the div refresh, say after 10 secs and execute the run_query() function without clicking on the button? <script src="scripts/ajax.js" type="text/javascript"></script> <div id="quote"><strong>Quote of the Day</strong></div> <div><a style="cursor:pointer" onclick="run_query()">Next quote …</a></div>

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  • How to save svg canvas to local filesystem

    - by dr jerry
    Is there a way to allow a user, after he has created a vector graph on a javascript svg canvas using a browser, to download this file to their local filesystem? SVG is a total new field for me so please be patient if my wording is not accurate. kind regards, Jeroen.

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  • Control characters as delimiters

    - by Gio Borje
    I have a nodejs TCP server and a client. Basic network communication happens. Client sends "data + STX_CHARACTER + data + ETX_CHARACTER" (just an example). How do I split the string using the STX Control Character as a delimiter or how do I reference the character at all in Javascript.

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  • How do I create an Array into another Array?

    - by Timnkd
    I have the following JavaScript Array: var jsonArray = { 'homes' : [ { "home_id":"203", "price":"925", "sqft":"1100", "num_of_beds":"2", "num_of_baths":"2.0", }, { "home_id":"59", "price":"1425", "sqft":"1900", "num_of_beds":"4", "num_of_baths":"2.5", }, // ... (more homes) ... ]} I want to convert this to the following type of Array (pseudo code): var newArray = new Array(); newArray.push(home_id's); How can I do that? Notice how the newArray only has home_ids from the big jsonArray array.

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  • How can a JSON object refer to values in itself?

    - by Erin Drummond
    Hi, Lets say I have the following javascript: var obj = { key1 : "it ", key2 : key1 + " works!" }; alert(obj.key2); This errors with "key1 is not defined". I have tried this.key1 this[key1] obj.key1 obj[key1] this["key1"] obj["key1"] and they never seem to be defined. How can I get key2 to refer to key1's value?

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