/*
   Behaviour v1.1 by Ben Nolan, June 2005. Based largely on the work
   of Simon Willison (see comments by Simon below).

   Description:
   	
   	Uses css selectors to apply javascript behaviours to enable
   	unobtrusive javascript in html documents.
   	
   Usage:   
   
	var myrules = {
		'b.someclass' : function(element){
			element.onclick = function(){
				alert(this.innerHTML);
			}
		},
		'#someid u' : function(element){
			element.onmouseover = function(){
				this.innerHTML = "BLAH!";
			}
		}
	};
	
	Behaviour.register(myrules);
	
	// Call Behaviour.apply() to re-apply the rules (if you
	// update the dom, etc).

   License:
   
   	This file is entirely BSD licensed.
   	
   More information:
   	
   	http://ripcord.co.nz/behaviour/
   
*/   

var Behaviour = {
	list : new Array,
	
	register : function(sheet){
		Behaviour.list.push(sheet);
	},
	
	start : function(){
		Behaviour.addLoadEvent(function(){
			Behaviour.apply();
		});
	},
	
	apply : function(){
		for (h=0;sheet=Behaviour.list[h];h++){
			for (selector in sheet){
				list = document.getElementsBySelector(selector);
				
				if (!list){
					continue;
				}

				for (i=0;element=list[i];i++){
					sheet[selector](element);
				}
			}
		}
	},
	
	addLoadEvent : function(func){
		var oldonload = window.onload;
		
		if (typeof window.onload != 'function') {
			window.onload = func;
		} else {
			window.onload = function() {
				oldonload();
				func();
			}
		}
	}
}

Behaviour.start();

/*
   The following code is Copyright (C) Simon Willison 2004.

   document.getElementsBySelector(selector)
   - returns an array of element objects from the current document
     matching the CSS selector. Selectors can contain element names, 
     class names and ids and can be nested. For example:
     
       elements = document.getElementsBySelect('div#main p a.external')
     
     Will return an array of all 'a' elements with 'external' in their 
     class attribute that are contained inside 'p' elements that are 
     contained inside the 'div' element which has id="main"

   New in version 0.4: Support for CSS2 and CSS3 attribute selectors:
   See http://www.w3.org/TR/css3-selectors/#attribute-selectors

   Version 0.4 - Simon Willison, March 25th 2003
   -- Works in Phoenix 0.5, Mozilla 1.3, Opera 7, Internet Explorer 6, Internet Explorer 5 on Windows
   -- Opera 7 fails 
*/

function getAllChildren(e) {
  // Returns all children of element. Workaround required for IE5/Windows. Ugh.
  return e.all ? e.all : e.getElementsByTagName('*');
}

document.getElementsBySelector = function(selector) {
  // Attempt to fail gracefully in lesser browsers
  if (!document.getElementsByTagName) {
    return new Array();
  }
  // Split selector in to tokens
  var tokens = selector.split(' ');
  var currentContext = new Array(document);
  for (var i = 0; i < tokens.length; i++) {
    token = tokens[i].replace(/^\s+/,'').replace(/\s+$/,'');;
    if (token.indexOf('#') > -1) {
      // Token is an ID selector
      var bits = token.split('#');
      var tagName = bits[0];
      var id = bits[1];
      var element = document.getElementById(id);
      if (tagName && element.nodeName.toLowerCase() != tagName) {
        // tag with that ID not found, return false
        return new Array();
      }
      // Set currentContext to contain just this element
      currentContext = new Array(element);
      continue; // Skip to next token
    }
    if (token.indexOf('.') > -1) {
      // Token contains a class selector
      var bits = token.split('.');
      var tagName = bits[0];
      var className = bits[1];
      if (!tagName) {
        tagName = '*';
      }
      // Get elements matching tag, filter them for class selector
      var found = new Array;
      var foundCount = 0;
      for (var h = 0; h < currentContext.length; h++) {
        var elements;
        if (tagName == '*') {
            elements = getAllChildren(currentContext[h]);
        } else {
            elements = currentContext[h].getElementsByTagName(tagName);
        }
        for (var j = 0; j < elements.length; j++) {
          found[foundCount++] = elements[j];
        }
      }
      currentContext = new Array;
      var currentContextIndex = 0;
      for (var k = 0; k < found.length; k++) {
        if (found[k].className && found[k].className.match(new RegExp('\\b'+className+'\\b'))) {
          currentContext[currentContextIndex++] = found[k];
        }
      }
      continue; // Skip to next token
    }
    // Code to deal with attribute selectors
    if (token.match(/^(\w*)\[(\w+)([=~\|\^\$\*]?)=?"?([^\]"]*)"?\]$/)) {
      var tagName = RegExp.$1;
      var attrName = RegExp.$2;
      var attrOperator = RegExp.$3;
      var attrValue = RegExp.$4;
      if (!tagName) {
        tagName = '*';
      }
      // Grab all of the tagName elements within current context
      var found = new Array;
      var foundCount = 0;
      for (var h = 0; h < currentContext.length; h++) {
        var elements;
        if (tagName == '*') {
            elements = getAllChildren(currentContext[h]);
        } else {
            elements = currentContext[h].getElementsByTagName(tagName);
        }
        for (var j = 0; j < elements.length; j++) {
          found[foundCount++] = elements[j];
        }
      }
      currentContext = new Array;
      var currentContextIndex = 0;
      var checkFunction; // This function will be used to filter the elements
      switch (attrOperator) {
        case '=': // Equality
          checkFunction = function(e) { return (e.getAttribute(attrName) == attrValue); };
          break;
        case '~': // Match one of space seperated words 
          checkFunction = function(e) { return (e.getAttribute(attrName).match(new RegExp('\\b'+attrValue+'\\b'))); };
          break;
        case '|': // Match start with value followed by optional hyphen
          checkFunction = function(e) { return (e.getAttribute(attrName).match(new RegExp('^'+attrValue+'-?'))); };
          break;
        case '^': // Match starts with value
          checkFunction = function(e) { return (e.getAttribute(attrName).indexOf(attrValue) == 0); };
          break;
        case '$': // Match ends with value - fails with "Warning" in Opera 7
          checkFunction = function(e) { return (e.getAttribute(attrName).lastIndexOf(attrValue) == e.getAttribute(attrName).length - attrValue.length); };
          break;
        case '*': // Match ends with value
          checkFunction = function(e) { return (e.getAttribute(attrName).indexOf(attrValue) > -1); };
          break;
        default :
          // Just test for existence of attribute
          checkFunction = function(e) { return e.getAttribute(attrName); };
      }
      currentContext = new Array;
      var currentContextIndex = 0;
      for (var k = 0; k < found.length; k++) {
        if (checkFunction(found[k])) {
          currentContext[currentContextIndex++] = found[k];
        }
      }
      // alert('Attribute Selector: '+tagName+' '+attrName+' '+attrOperator+' '+attrValue);
      continue; // Skip to next token
    }
    
    if (!currentContext[0]){
    	return;
    }
    
    // If we get here, token is JUST an element (not a class or ID selector)
    tagName = token;
    var found = new Array;
    var foundCount = 0;
    for (var h = 0; h < currentContext.length; h++) {
      var elements = currentContext[h].getElementsByTagName(tagName);
      for (var j = 0; j < elements.length; j++) {
        found[foundCount++] = elements[j];
      }
    }
    currentContext = found;
  }
  return currentContext;
}

/* That revolting regular expression explained 
/^(\w+)\[(\w+)([=~\|\^\$\*]?)=?"?([^\]"]*)"?\]$/
  \---/  \---/\-------------/    \-------/
    |      |         |               |
    |      |         |           The value
    |      |    ~,|,^,$,* or =
    |   Attribute 
   Tag
*/












/*
Page:           rating.js
Created:        Aug 2006
Last Mod:       Mar 11 2007
Handles actions and requests for rating bars.	
--------------------------------------------------------- 
ryan masuga, masugadesign.com
ryan@masugadesign.com 
Licensed under a Creative Commons Attribution 3.0 License.
http://creativecommons.org/licenses/by/3.0/
See readme.txt for full credit details.
--------------------------------------------------------- */

var xmlhttp
	/*@cc_on @*/
	/*@if (@_jscript_version >= 5)
	  try {
	  xmlhttp=new ActiveXObject("Msxml2.XMLHTTP")
	 } catch (e) {
	  try {
	    xmlhttp=new ActiveXObject("Microsoft.XMLHTTP")
	  } catch (E) {
	   xmlhttp=false
	  }
	 }
	@else
	 xmlhttp=false
	@end @*/
	if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
	 try {
	  xmlhttp = new XMLHttpRequest();
	 } catch (e) {
	  xmlhttp=false
	 }
	}
	function myXMLHttpRequest() {
	  var xmlhttplocal;
	  try {
	    xmlhttplocal= new ActiveXObject("Msxml2.XMLHTTP")
	 } catch (e) {
	  try {
	    xmlhttplocal= new ActiveXObject("Microsoft.XMLHTTP")
	  } catch (E) {
	    xmlhttplocal=false;
	  }
	 }

	if (!xmlhttplocal && typeof XMLHttpRequest!='undefined') {
	 try {
	  var xmlhttplocal = new XMLHttpRequest();
	 } catch (e) {
	  var xmlhttplocal=false;
	  alert('couldn\'t create xmlhttp object');
	 }
	}
	return(xmlhttplocal);
}

function sndReq(vote,id_num,ip_num,units) {
	var theUL = document.getElementById('unit_ul'+id_num); // the UL
	
	// switch UL with a loading div
	theUL.innerHTML = '<div class="loading"></div>';
	
    xmlhttp.open('get', '/scripts/ajaxstarrater/rpc.php?j='+vote+'&q='+id_num+'&t='+ip_num+'&c='+units);
    xmlhttp.onreadystatechange = handleResponse;
    xmlhttp.send(null);	
}

function handleResponse() {
  if(xmlhttp.readyState == 4){
		if (xmlhttp.status == 200){
       	
        var response = xmlhttp.responseText;
        var update = new Array();

        if(response.indexOf('|') != -1) {
            update = response.split('|');
            changeText(update[0], update[1]);
        }
		}
    }
}

function changeText( div2show, text ) {
    // Detect Browser
    var IE = (document.all) ? 1 : 0;
    var DOM = 0; 
    if (parseInt(navigator.appVersion) >=5) {DOM=1};

    // Grab the content from the requested "div" and show it in the "container"
    if (DOM) {
        var viewer = document.getElementById(div2show);
        viewer.innerHTML = text;
    }  else if(IE) {
        document.all[div2show].innerHTML = text;
    }
}

/* =============================================================== */
var ratingAction = {
		'a.rater' : function(element){
			element.onclick = function(){

			var parameterString = this.href.replace(/.*\?(.*)/, "$1"); // onclick="sndReq('j=1&q=2&t=127.0.0.1&c=5');
			var parameterTokens = parameterString.split("&"); // onclick="sndReq('j=1,q=2,t=127.0.0.1,c=5');
			var parameterList = new Array();

			for (j = 0; j < parameterTokens.length; j++) {
				var parameterName = parameterTokens[j].replace(/(.*)=.*/, "$1"); // j
				var parameterValue = parameterTokens[j].replace(/.*=(.*)/, "$1"); // 1
				parameterList[parameterName] = parameterValue;
			}
			var theratingID = parameterList['q'];
			var theVote = parameterList['j'];
			var theuserIP = parameterList['t'];
			var theunits = parameterList['c'];
			
			//for testing	alert('sndReq('+theVote+','+theratingID+','+theuserIP+','+theunits+')'); return false;
			sndReq(theVote,theratingID,theuserIP,theunits); return false;		
			}
		}
		
	};
Behaviour.register(ratingAction);















/* --------------------------------------------------------- 
   collapseThread
   
--------------------------------------------------------- */



function collapseThread( theId ) {
			var comment = document.getElementById(theId);
			if(!comment)
			{
				alert("ERROR:\nThe document structure is different\nfrom what Threaded Comments expects.\nYou are missing the element '"+theId+"'");
				return;
			}
			var theBody = findBody(comment);
			if(comment.className.indexOf("collapsed") > -1) {
				comment.className = comment.className.replace(" collapsed", "");;
			} else {
				comment.className += " collapsed";
			}
		}

		function expandThread( theId ) {
			var comment = document.getElementById(theId);
			if(!comment)
			{
				alert("ERROR:\nThe document structure is different\nfrom what Threaded Comments expects.\nYou are missing the element '"+theId+"'");
				return;
			}
			var theBody = findBody(comment);
			if(comment.className.indexOf("collapsed") > -1) {
				comment.className = comment.className.replace(" collapsed", "");;
			} 
		}
		
		function findBody(el)
		{
			var divs = el.getElementsByTagName("div");
			var ret;
			for(var i = 0; i < divs.length; ++i) {
				if(divs.item(i).className.indexOf("body") > -1)
					return divs.item(i);
			}
			return false;
		}
	
		function onAddComment() {
			//checkDocumentIntegrity();
			var el = document.getElementById("commentform");
			// Future release: Check if form is filled correctly and mark the form fields.
			el.submit();
		}
		
		function moveAddCommentBelow(theId, threadId, collapse)
		{
			expandThread( theId );
			var addComment = document.getElementById("addcomment");
			if(!addComment)
			{
			  	alert("ERROR:\nThreaded Comments can't find the 'addcomment' div.\nThis is probably because you have changed\nthe comments.php file.\nMake sure there is a tag around the form\nthat has the id 'addcomment'"); 
				return
			}
			var comment = document.getElementById(theId);
			if(collapse)
			{
				for(var i = 0; i < comment.childNodes.length; ++i) {
					var c = comment.childNodes.item(i);
					if(typeof(c.className) == "string" && c.className.indexOf("collapsed")<0) {
						c.className += " collapsed";
					}
				}
			}
			addComment.parentNode.removeChild(addComment);

			comment.appendChild(addComment);
			if(comment.className.indexOf("alt")>-1) {
				addComment.className = addComment.className.replace(" alt", "");					
			} else {
				addComment.className += " alt";
			}
		        var replyId = document.getElementById("comment_reply_ID");
			if(replyId == null)
			{
				alert("Brians Threaded Comments Error:\nThere is no hidden form field called\n'comment_reply_ID'. This is probably because you\nchanged the comments.php file and forgot\nto include the field. Please take a look\nat the original comments.php and copy the\nform field over.");
			}
			replyId.value = threadId;
			var reRootElement = document.getElementById("reroot");
			if(reRootElement == null)
			{
				alert("Brians Threaded Comments Error:\nThere is no anchor tag called 'reroot' where\nthe comment form starts.\nPlease compare your comments.php to the original\ncomments.php and copy the reroot anchor tag over.");
			}
			reRootElement.style.display = "block";
			var aTags = comment.getElementsByTagName("A");
			var anc = aTags.item(0).id;
			//document.location.href = "#"+anc;
			document.getElementById("comment").focus();
		}

		function checkDocumentIntegrity()
		{
			str = "";
			
			str += checkElement("reroot","div tag");
			str += checkElement("addcomment", "div tag");
			str += checkElement("comment_reply_ID", "hidden form field");
			str += checkElement("content", "div tag");
			str += checkElement("comment", "textfield");
			str += checkElement("addcommentanchor", "anchor tag");
			
			if(str != "")
			{
				str = "Brian's Threaded Comments are missing some of the elements that are required for it to function correctly.\nThis is probably the because you have changed the original comments.php that was included with the plugin.\n\nThese are the errors:\n" + str;
				str += "\nYou should compare your comments.php with the original comments.php and make sure the required elements have not been removed.";

				alert(str);
			}
		}
               
		function checkElement(theId, elDesc)
		{
			var el = document.getElementById(theId);
			if(!el)
			{
				if(elDesc == null)
					elDesc = "element";
				return "- The "+elDesc+" with the ID '" +theId + "' is missing\n"; 
			}
			else 
				return "";
		}
		
		function reRoot()
		{
			var addComment = document.getElementById("addcomment");			
			var reRootElement = document.getElementById("reroot");
			reRootElement.style.display = "none";
			var content = document.getElementById("content");
			addComment.parentNode.removeChild(addComment);
			content.appendChild(addComment);
			addComment.className = addComment.className.replace(" alt", "");
			document.location.href = "#addcommentanchor";
			document.getElementById("comment").focus();				
			document.getElementById("comment_reply_ID").value = "0";
		}			
		
		function changeCommentSize(d)
		{
			var el = document.getElementById("comment");
			var height = parseInt(el.style.height);
			if(!height && el.offsetHeight)
				height = el.offsetHeight;
			height += d;
			if(height < 20) 
				height = 20;
			el.style.height = height+"px";
		}