ck-karma

/*
Plugin Name: Comment Rating
Plugin URI: http://wealthynetizen.com/wordpress-plugin-comment-rating/
Description: Allows visitors to rate the comments on your blog in a Like vs. Dislike fashion. Clickable images and ratings are automatically inserted into each comment. Comments disliked too much by readers will be hidden in a click-to-show link.
Author: Bob King
Author URI: http://wealthynetizen.com
Version: 2.3.2
*/

/*
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/

function ckratingcreateXMLHttpRequest(){
var xmlhttp = null;
try {
// Moz supports XMLHttpRequest. IE uses ActiveX.
// browser detction is bad. object detection works for any browser
xmlhttp = window.XMLHttpRequest ? new XMLHttpRequest() : new ActiveXObject("Microsoft.XMLHTTP");
} catch (e) {
// browser doesn’t support ajax. handle however you want
//document.getElementById("errormsg").innerHTML = "Your browser doesnt support XMLHttpRequest.";
// This won't help ordinary users. Turned off
// alert("Your browser does not support the XMLHttpRequest Object!");
}
return xmlhttp;
}

var ckratingXhr = ckratingcreateXMLHttpRequest();

function ckratingKarma(id, action, path, imgIndex){
ckratingXhr.open('get', 'http\://'+ path +'ck-processkarma.php?id='+ id +'&action='+ action +'&path='+ path +'&imgIndex='+imgIndex);
ckratingXhr.onreadystatechange = ckratingHandleResponse;
ckratingXhr.send(null);
}

function ckratingHandleResponse(){
if(ckratingXhr.readyState == 4){
var response = ckratingXhr.responseText.split('|');

if(response[0] == 'done'){
if(response[1]){
//Changes the thumbs to dull gray and disable the action
if (response[4] == 'down') {
if ( document.getElementById("down-"+response[1]) != null ) {
document.getElementById("down-"+response[1]).src = "http://"+response[3]+'images/'+response[6]+'checkmark.png';
}
}
else {
if ( document.getElementById("down-"+response[1]) != null ) {
document.getElementById("down-"+response[1]).src = "http://"+response[3]+'images/'+response[6]+'gray_down.png';
}
}
if ( document.getElementById("down-"+response[1]) != null ) {
document.getElementById("down-"+response[1]).onclick = '';
}
if (response[4] == 'up') {
if ( document.getElementById("up-"+response[1]) != null ) {
document.getElementById("up-"+response[1]).src = "http://"+response[3]+'images/'+response[6]+'checkmark.png';
}
}
else {
if ( document.getElementById("up-"+response[1]) != null ) {
document.getElementById("up-"+response[1]).src = "http://"+response[3]+'images/'+response[6]+'gray_up.png';
}
}
if ( document.getElementById("up-"+response[1]) != null ) {
document.getElementById("up-"+response[1]).onclick = '';
}
//Update the karma number display
if(!response[2]){
alert("Response has no value");
}
var karmanumber = response[2];
//The below line is commented out because there is no karma number atm.
if (document.getElementById("karma-"+response[1]+"-"+response[4]) != null) {
document.getElementById("karma-"+response[1]+"-"+response[4]).innerHTML = karmanumber;
}
// deal with the single value total
if (document.getElementById("karma-"+response[1]+"-total") != null) {
document.getElementById("karma-"+response[1]+"-total").innerHTML = response[5];
}
} else {
alert("WTF ?");
}
}
else if(response[0] == 'error')
{
var error = 'Error: '+response[1];
alert(error);
} else {
/* This causes unnecessary error messages when the icon
* is double clicked.
alert("Reponse: "+response[0]);
alert("Karma not changed, please try again later.");
*/
}
}
}

var crToggleComment = 0;

function crSwitchDisplay(id) {
if (crToggleComment % 2 == 0) { crShowdiv(id); }
else { crHidediv(id); }
crToggleComment++;
}

// hide <div id='a2' style="display:none;"> tagged div ID blocks
function crHidediv(id) {
//safe function to hide an element with a specified id
if (document.getElementById) { // DOM3 = IE5, NS6
document.getElementById(id).style.display = 'none';
}
else {
if (document.layers) { // Netscape 4
document.id.display = 'none';
}
else { // IE 4
document.all.id.style.display = 'none';
}
}
}

// show <div id='a2' style="display:none;"> tagged div ID blocks
// <a href="javascript:crShowdiv('a2');">show a2</a>

function crShowdiv(id) {
//safe function to show an element with a specified id

if (document.getElementById) { // DOM3 = IE5, NS6
document.getElementById(id).style.display = 'block';
}
else {
if (document.layers) { // Netscape 4
document.id.display = 'block';
}
else { // IE 4
document.all.id.style.display = 'block';
}
}
}