// Define the 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();

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;
}



// Define the ajax
var registryPhotoAjaxObj;

function defineAjaxModule() {
   var registryPhotoAjaxObj=null;
   try {
      registryPhotoAjaxObj=new XMLHttpRequest(); // Firefox, Opera 8.0+, Safari
   } catch (e) { // Internet Explorer
      try {
         registryPhotoAjaxObj=new ActiveXObject("Msxml2.XMLHTTP");
      } catch (e) {
         registryPhotoAjaxObj=new ActiveXObject("Microsoft.XMLHTTP");
      }
   }
   return registryPhotoAjaxObj;
}

function registry_photo_insertSortOrder(profileid, photoid, targetsort, salt) {
   registryPhotoAjaxObj = defineAjaxModule();

   if (registryPhotoAjaxObj == null) {
      return;
   }

   var url = '/insertSortOrder/' + profileid + '/' + photoid + '/' + targetsort + '/' + salt + '/';

   registryPhotoAjaxObj.onreadystatechange=registry_photo_updateInfo;
   registryPhotoAjaxObj.open("GET", url);

   registryPhotoAjaxObj.send(null);
}

function registry_photo_changeSortOrder(profileid, photoid, direction, salt) {
   registryPhotoAjaxObj = defineAjaxModule();

   if (registryPhotoAjaxObj == null) {
      return;
   }

   var url = '/changeSortOrder/' + profileid + '/' + photoid + '/' + direction + '/' + salt + '/';

   registryPhotoAjaxObj.onreadystatechange=registry_photo_updateInfo;
   registryPhotoAjaxObj.open("GET", url);

   registryPhotoAjaxObj.send(null);
}

function registry_photo_updateInfo() {
   if (registryPhotoAjaxObj.readyState == 4)
      document.getElementById('registry_photo_block').innerHTML = registryPhotoAjaxObj.responseText;
}

function registry_photo_deletePhoto(profileid, photoid) {
   registryPhotoAjaxObj = defineAjaxModule();

   if (registryPhotoAjaxObj == null) {
      return;
   }

   var url = '/deletePhoto/' + profileid + '/' + photoid + '/';

   registryPhotoAjaxObj.onreadystatechange=registry_photo_updateInfo;
   registryPhotoAjaxObj.open("GET", url);

   registryPhotoAjaxObj.send(null);
}

function registry_photostream_change(profileid, nextsort, salt) {
   registryPhotoAjaxObj = defineAjaxModule();

   if (registryPhotoAjaxObj == null) {
      return;
   }

   var url = '/photostream/' + profileid + '/' + nextsort + '/' + salt + '/';

   //registryPhotoAjaxObj.onreadystatechange=registry_photostream_updateInfo;
   registryPhotoAjaxObj.onreadystatechange=function() {
      registry_photostream_updateInfo(profileid);
   };
   registryPhotoAjaxObj.open("GET", url);

   registryPhotoAjaxObj.send(null);
}

function registry_photostream_updateInfo(profileid) {
   if (registryPhotoAjaxObj.readyState == 4)
      document.getElementById('photostream_' + profileid).innerHTML = registryPhotoAjaxObj.responseText;
}

function registry_profilestream_changeThumb(profileid, nextsort, salt) {
   registryPhotoAjaxObj = defineAjaxModule();

   if (registryPhotoAjaxObj == null) {
      return;
   }

   var url = '/profilestream/' + profileid + '/' + nextsort + '/' + salt + '/';

   //registryPhotoAjaxObj.onreadystatechange=registry_profilestream_updateInfo;
   registryPhotoAjaxObj.onreadystatechange=function() {
      registry_profilestream_updateInfoThumb();
   };
   registryPhotoAjaxObj.open("GET", url);

   registryPhotoAjaxObj.send(null);
}

function registry_profilestream_updateInfoThumb() {
   if (registryPhotoAjaxObj.readyState == 4)
      document.getElementById('registry_profile_thumb_block').innerHTML = registryPhotoAjaxObj.responseText;
}

function registry_profilestream_changeEnlarged(profileid, nextsort, salt) {
   registryPhotoAjaxObj = defineAjaxModule();

   if (registryPhotoAjaxObj == null) {
      return;
   }

   var url = '/profilephoto/' + profileid + '/' + nextsort + '/' + salt + '/';

   //registryPhotoAjaxObj.onreadystatechange=registry_profilestream_updateInfo;
   registryPhotoAjaxObj.onreadystatechange=function() {
      registry_profilestream_updateInfoEnlarged();
   };
   registryPhotoAjaxObj.open("GET", url);

   registryPhotoAjaxObj.send(null);
}

function registry_profilestream_updateInfoEnlarged() {
   if (registryPhotoAjaxObj.readyState == 4)
      document.getElementById('registry_profile_photo_block').innerHTML = registryPhotoAjaxObj.responseText;
}






// Now define the rules
var myrules = {

   '#registry_photo_moveLeft li' : function(el){
      el.onclick = function(){
         var photoid = this.id;
         registry_photo_changeSortOrder(profileid, photoid, 'left', salt);
         return false;
      }
   },
   '#registry_photo_moveRight li' : function(el){
      el.onclick = function(){
         var photoid = this.id;
         registry_photo_changeSortOrder(profileid, photoid, 'right', salt);
         return false;
      }
   }

   
};

Behaviour.register(myrules);