Temporary-Post-Used-For-Style-Detection-Title-1237150457

Temporary-Post-Used-For-Style-Detection-Content-1237150457

Quck way to add PPA repo in Ubuntu 9.10

sudo add-apt-repository ppa:qutim/qutim.svn

Unobtrusive repo & keys add procedure

Example:

sudo bash -c "echo 'deb http://ppa.launchpad.net/bnsmith/ppa/ubuntu jaunty main' >> /etc/apt/sources.list"
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys B7DEAC3C
sudo apt-get update && sudo apt-get install caffeine

AJAX with pure JS

var req;

function getURL(url) {
  if(isWorking == true) { setTimeout("getURL(\""+url+"\")", "100"); return false; }

  isWorking = true;

  if (window.XMLHttpRequest) {
 req = new XMLHttpRequest();
        req.onreadystatechange = handleHttpResponse;
 req.open("GET", url, true);
 req.send(null);
  } else if (window.ActiveXObject) { // IE
 try {
  req = new ActiveXObject("Msxml2.XMLHTTP");
 } catch (e) {
  req = new ActiveXObject("Microsoft.XMLHTTP");
 }
 if (req) {
                req.onreadystatechange = handleHttpResponse;
  req.open("GET", url, true);
  req.send();
        } else {
  alert("Your browser does not support ajax");
 }
  } else {
 alert("Your browser does not support ajax");
  }

  return false;
}

function postURL(url,outbuf) {
  if(isWorking == true) { setTimeout("postURL(\""+url+"\",\""+outbuf+"\")", "100"); return false; }

  isWorking = true;

  var browser = navigator.appName;
  if(browser != "Microsoft Internet Explorer") {
    req = new XMLHttpRequest();
    req.onreadystatechange = handleHttpResponse;
    req.open("POST", url, true);
    req.setRequestHeader("Content-Type","application/x-www-form-urlencoded; charset=UTF-8");
    req.send(outbuf);
  } else if (window.ActiveXObject) { // IE
    req = new ActiveXObject("Microsoft.XMLHTTP");
    if (req) {
      req.onreadystatechange = handleHttpResponse;
      req.open("POST", url, true);
      req.setRequestHeader("Content-Type","application/x-www-form-urlencoded; charset=UTF-8");
      req.send(outbuf);
    }
  }

  return false;
}

function handleHttpResponse() {
 if (req.readyState == 4) {
         if(req.responseText.charAt(0) == "<") {
           alert(req.responseText);
         } else {
      eval(req.responseText);
    isWorking = false; 
  }
 }
}

Trees In The Database - Advanced data structures

Check out this SlideShare Presentation:

Trees In The Database - Advanced data structures

View more documents from Lorenzo Alberton.

VMN

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Set option selected: long & short way by jQuery

Assume, that we have a 'select' element with options & 'optValue' which will be selected.
Long way:

var fieldStateId = "select[name='formarray[field]']";
$(fieldStateId+' option[value=' + optValue + ']').attr('selected', 'selected');

Short way:

$('#selectTagId').val(value);