;(function($) { 

  var $cluetip, $cluetipInner, $cluetipOuter, $cluetipTitle, $cluetipArrows, $dropShadow, imgCount;
  $.fn.cluetip = function(js, options) {
    if (typeof js == 'object') {
      options = js;
      js = null;
    }
    return this.each(function(index) {
      var $this = $(this);      
      
      var opts = $.extend(true, {}, $.fn.cluetip.defaults, options || {}, $.metadata ? $this.metadata() : $.meta ? $this.data() : {});

      var cluetipContents = false;
      var cluezIndex = parseInt(opts.cluezIndex, 10)-1;
      var isActive = false, closeOnDelay = 0;

      if (!$('#cluetip').length) {
        $cluetipInner = $('<div id="cluetip-inner"></div>');
        $cluetipTitle = $('<h3 id="cluetip-title"></h3>');        
        $cluetipOuter = $('<div id="cluetip-outer"></div>').append($cluetipInner).prepend($cluetipTitle);
        $cluetip = $('<div id="cluetip"></div>').css({zIndex: opts.cluezIndex})
        .append($cluetipOuter).append('<div id="cluetip-extra"></div>')[insertionType](insertionElement).hide();
        $('<div id="cluetip-waitimage"></div>').css({position: 'absolute', zIndex: cluezIndex-1})
        .insertBefore('#cluetip').hide();
        $cluetip.css({position: 'absolute', zIndex: cluezIndex});
        $cluetipOuter.css({position: 'relative', zIndex: cluezIndex+1});
        $cluetipArrows = $('<div id="cluetip-arrows" class="cluetip-arrows"></div>').css({zIndex: cluezIndex+1}).appendTo('#cluetip');
      }
      var dropShadowSteps = (opts.dropShadow) ? +opts.dropShadowSteps : 0;
      if (!$dropShadow) {
        $dropShadow = $([]);
        for (var i=0; i < dropShadowSteps; i++) {
          $dropShadow = $dropShadow.add($('<div></div>').css({zIndex: cluezIndex-i-1, opacity:.1, top: 1+i, left: 1+i}));
        };
        $dropShadow.css({position: 'absolute', backgroundColor: '#000'})
        .prependTo($cluetip);
      }
      var tipAttribute = $this.attr(opts.attribute), ctClass = opts.cluetipClass;
      if (!tipAttribute && !opts.splitTitle && !js) return true;
      if (opts.local && opts.localPrefix) {tipAttribute = opts.localPrefix + tipAttribute;}
      if (opts.local && opts.hideLocal) { $(tipAttribute + ':first').hide(); }
      var tOffset = parseInt(opts.topOffset, 10), lOffset = parseInt(opts.leftOffset, 10);

      var tipHeight, wHeight;
      var defHeight = isNaN(parseInt(opts.height, 10)) ? 'auto' : (/\D/g).test(opts.height) ? opts.height : opts.height + 'px';
      var sTop, linkTop, posY, tipY, mouseY, baseline;
      var tipInnerWidth = isNaN(parseInt(opts.width, 10)) ? 275 : parseInt(opts.width, 10);
      var tipWidth = tipInnerWidth + (parseInt($cluetip.css('paddingLeft'),10)||0) + (parseInt($cluetip.css('paddingRight'),10)||0) + dropShadowSteps;
      var linkWidth = this.offsetWidth;
      var linkLeft, posX, tipX, mouseX, winWidth;
            

      var tipParts;
      var tipTitle = (opts.attribute != 'title') ? $this.attr(opts.titleAttribute) : '';
      if (opts.splitTitle) {
        if(tipTitle == undefined) {tipTitle = '';}
        tipParts = tipTitle.split(opts.splitTitle);
        tipTitle = tipParts.shift();
      }
      if (opts.escapeTitle) {
        tipTitle = tipTitle.replace(/&/g,'&amp;').replace(/>/g,'&gt;').replace(/</g,'&lt;');
      }
      
      var localContent;

    var activate = function(event) {
      if (!opts.onActivate($this)) {
        return false;
      }
      isActive = true;
      $cluetip.removeClass().css({width: tipInnerWidth});
      if (tipAttribute == $this.attr('href')) {
        $this.css('cursor', opts.cursor);
      }
      $this.attr('title','');
      if (opts.hoverClass) {
        $this.addClass(opts.hoverClass);
      }
      linkTop = posY = $this.offset().top;
      linkLeft = $this.offset().left;
      mouseX = event.pageX;
      mouseY = event.pageY;
      if ($this[0].tagName.toLowerCase() != 'area') {
        sTop = $(document).scrollTop();
        winWidth = $(window).width();
      }

      if (opts.positionBy == 'fixed') {
        posX = linkWidth + linkLeft + lOffset;
        $cluetip.css({left: posX});
      } else {
        posX = (linkWidth > linkLeft && linkLeft > tipWidth)
          || linkLeft + linkWidth + tipWidth + lOffset > winWidth 
          ? linkLeft - tipWidth - lOffset 
          : linkWidth + linkLeft + lOffset;
        if ($this[0].tagName.toLowerCase() == 'area' || opts.positionBy == 'mouse' || linkWidth + tipWidth > winWidth) { 
          if (mouseX + 20 + tipWidth > winWidth) {  
            $cluetip.addClass(' cluetip-' + ctClass);
            posX = (mouseX - tipWidth - lOffset) >= 0 ? mouseX - tipWidth - lOffset - parseInt($cluetip.css('marginLeft'),10) + parseInt($cluetipInner.css('marginRight'),10) :  mouseX - (tipWidth/2);
          } else {
            posX = mouseX + lOffset;
          }
        }
        var pY = posX < 0 ? event.pageY + tOffset : event.pageY;
        $cluetip.css({left: (posX > 0 && opts.positionBy != 'bottomTop') ? posX : (mouseX + (tipWidth/2) > winWidth) ? winWidth/2 - tipWidth/2 : Math.max(mouseX - (tipWidth/2),0)});
      }
        wHeight = $(window).height();

/***************************************
* load a string from cluetip method's first argument
***************************************/
      if (js) {
        if (typeof js == 'function') {
          js = js($this[0]);
        }
        $cluetipInner.html(js);
        cluetipShow(pY);
      }
/***************************************
* load the title attribute only (or user-selected attribute). 
* clueTip title is the string before the first delimiter
* subsequent delimiters place clueTip body text on separate lines
***************************************/

      else if (tipParts) {
        var tpl = tipParts.length;
        $cluetipInner.empty();
        for (var i=0; i < tpl; i++){
          if (i == 0) {
            $cluetipInner.html(tipParts[i]);
          } else { 
            $cluetipInner.append('<div class="split-body">' + tipParts[i] + '</div>');
          }            
        };
        cluetipShow(pY);
      }
/***************************************
* load external file via ajax          
***************************************/

      else if (!opts.local && tipAttribute.indexOf('#') != 0) {
        if (/\.(jpe?g|tiff?|gif|png)$/i.test(tipAttribute)) {
          $cluetipInner.html('<img src="' + tipAttribute + '" alt="' + tipTitle + '" />');
          cluetipShow(pY);
        } else if (cluetipContents && opts.ajaxCache) {
          $cluetipInner.html(cluetipContents);
          cluetipShow(pY);
        } else {
          var ajaxSettings = opts.ajaxSettings;
          ajaxSettings.cache = false; 
          ajaxSettings.url = tipAttribute;
          ajaxSettings.beforeSend = function() {
            $cluetipOuter.children().empty();
            if (opts.waitImage) {
              $('#cluetip-waitimage')
              .css({top: mouseY+20, left: mouseX+20})
              .show();
            }
          };
         ajaxSettings.error = function() {
            if (isActive) {
              $cluetipInner.html('<i>sorry, the contents could not be loaded</i>');
            }
          };
          ajaxSettings.success = function(data) {
            cluetipContents = opts.ajaxProcess(data);
            if (isActive) {
              $cluetipInner.html(cluetipContents);
            }
          };
          ajaxSettings.complete = function() {
            imgCount = $('#cluetip-inner img').length;
            if (imgCount && !$.browser.opera) {
              $('#cluetip-inner img').load(function() {
                imgCount--;
                if (imgCount<1) {
                  $('#cluetip-waitimage').hide();
                  if (isActive) cluetipShow(pY);
                }
              }); 
            } else {
              $('#cluetip-waitimage').hide();
              if (isActive) cluetipShow(pY);    
            } 
          };
          $.ajax(ajaxSettings);
        }

/***************************************
* load an element from the same page
***************************************/
      } else if (opts.local){
        var $localContent = $(tipAttribute + ':eq(' + index + ')').clone(true).show();
        $cluetipInner.html($localContent);
        cluetipShow(pY);
      }
    };


    var cluetipShow = function(bpY) {
      $cluetip.addClass('cluetip-' + ctClass);
      
      if (opts.truncate) { 
        var $truncloaded = $cluetipInner.text().slice(0,opts.truncate) + '...';
        $cluetipInner.html($truncloaded);
      }
      function doNothing() {}; 
      tipTitle ? $cluetipTitle.show().html(tipTitle) : (opts.showTitle) ? $cluetipTitle.show().html('&nbsp;') : $cluetipTitle.hide();
      if (opts.sticky) {
        var $closeLink = $('<div id="cluetip-close"><a href="#">' + opts.closeText + '</a></div>');
        (opts.closePosition == 'bottom') ? $closeLink.appendTo($cluetipInner) : (opts.closePosition == 'title') ? $closeLink.prependTo($cluetipTitle) : $closeLink.prependTo($cluetipInner);
        $closeLink.click(function() {
          cluetipClose();
          return false;
        });
        if (opts.mouseOutClose) {
          if ($.fn.hoverIntent && opts.hoverIntent) { 
            $cluetip.hoverIntent({
              over: doNothing, 
              timeout: opts.hoverIntent.timeout,  
              out: function() { $closeLink.trigger('click'); }
            });
          } else {
            $cluetip.hover(doNothing, 
            function() {$closeLink.trigger('click'); });
          }
        } else {
          $cluetip.unbind('mouseout');
        }
      }
 
      var direction = '';
      $cluetipOuter.css({overflow: defHeight == 'auto' ? 'visible' : 'auto', height: defHeight});
      tipHeight = defHeight == 'auto' ? Math.max($cluetip.outerHeight(),$cluetip.height()) : parseInt(defHeight,10);   
      tipY = posY;
      baseline = sTop + wHeight;
      if (opts.positionBy == 'fixed') {
        tipY = posY - opts.dropShadowSteps + tOffset;
      } else if ( (posX < mouseX && Math.max(posX, 0) + tipWidth > mouseX) || opts.positionBy == 'bottomTop') {
        if (posY + tipHeight + tOffset > baseline && mouseY - sTop > tipHeight + tOffset) { 
          tipY = mouseY - tipHeight - tOffset;
          direction = 'top';
        } else { 
          tipY = mouseY + tOffset;
          direction = 'bottom';
        }
      } else if ( posY + tipHeight + tOffset > baseline ) {
        tipY = (tipHeight >= wHeight) ? sTop : baseline - tipHeight - tOffset;
      } else if ($this.css('display') == 'block' || $this[0].tagName.toLowerCase() == 'area' || opts.positionBy == "mouse") {
        tipY = bpY - tOffset;
      } else {
        tipY = posY - opts.dropShadowSteps;
      }
      if (direction == '') {
        posX < linkLeft ? direction = 'left' : direction = 'right';
      }
      $cluetip.css({top: tipY + 'px'}).removeClass().addClass('clue-' + direction + '-' + ctClass).addClass(' cluetip-' + ctClass);
      if (opts.arrows) { 
        var bgY = (posY - tipY - opts.dropShadowSteps);
        $cluetipArrows.css({top: (/(left|right)/.test(direction) && posX >=0 && bgY > 0) ? bgY + 'px' : /(left|right)/.test(direction) ? 0 : ''}).show();
      } else {
        $cluetipArrows.hide();
      }


      $dropShadow.hide();
      $cluetip.hide()[opts.fx.open](opts.fx.open != 'show' && opts.fx.openSpeed);
      if (opts.dropShadow) $dropShadow.css({height: tipHeight, width: tipInnerWidth}).show();
      if ($.fn.bgiframe) { $cluetip.bgiframe(); }
      
      if (opts.delayedClose > 0) {
        closeOnDelay = setTimeout(cluetipClose, opts.delayedClose);
      }
      
      opts.onShow($cluetip, $cluetipInner);
      
    };

/***************************************
   =INACTIVATION
-------------------------------------- */
    var inactivate = function(event) {
      isActive = false;
      $('#cluetip-waitimage').hide();
      if (!opts.sticky || (/click|toggle/).test(opts.activation) ) {
        cluetipClose();
clearTimeout(closeOnDelay);        
      };
      if (opts.hoverClass) {
        $this.removeClass(opts.hoverClass);
      }
    };

    var cluetipClose = function() {
      $cluetipOuter 
      .parent().hide().removeClass();
      opts.onHide($cluetip, $cluetipInner);
      $this.removeClass('cluetip-clicked');
      if (tipTitle) {
        $this.attr(opts.titleAttribute, tipTitle);
      }
      $this.css('cursor','');
      if (opts.arrows) $cluetipArrows.css({top: ''});
    };

      if ( (/click|toggle/).test(opts.activation) ) {
        $this.click(function(event) {
          if ($cluetip.is(':hidden') || !$this.is('.cluetip-clicked')) {
            activate(event);
            $('.cluetip-clicked').removeClass('cluetip-clicked');
            $this.addClass('cluetip-clicked');
          } else {
            inactivate(event);
          }
          this.blur();
          return false;
        });
      
      } else if (opts.activation == 'focus') {
        $this.focus(function(event) {
          activate(event);
        });
        $this.blur(function(event) {
          inactivate(event);
        });
  
    
      } else {
        $this.click(function() {
          if ($this.attr('href') && $this.attr('href') == tipAttribute && !opts.clickThrough) {
            return false;
          }
        });
        
        var mouseTracks = function(evt) {
          if (opts.tracking == true) {
            var trackX = posX - evt.pageX;
            var trackY = tipY ? tipY - evt.pageY : posY - evt.pageY;
            $this.mousemove(function(evt) {
              $cluetip.css({left: evt.pageX + trackX, top: evt.pageY + trackY });
            });
          }
        };
        if ($.fn.hoverIntent && opts.hoverIntent) {
          $this.mouseover(function() {$this.attr('title',''); })
          .hoverIntent({
            sensitivity: opts.hoverIntent.sensitivity,
            interval: opts.hoverIntent.interval,  
            over: function(event) {
              activate(event);
              mouseTracks(event);
            }, 
            timeout: opts.hoverIntent.timeout,  
            out: function(event) {inactivate(event); $this.unbind('mousemove');}
          });           
        } else {
          $this.hover(function(event) {
            activate(event);
            mouseTracks(event);
          }, function(event) {
            inactivate(event);
            $this.unbind('mousemove');
          });
        }
      }
    });
  };
  
  
  $.fn.cluetip.defaults = {  
    width:            370,      
    height:           'auto',   
    cluezIndex:       97,       
    positionBy:       'auto',   
    topOffset:        15,       
    leftOffset:       15,       
    local:            false,    
    localPrefix:      null,     
    hideLocal:        true,     
                                
    attribute:        'rel',    
    titleAttribute:   'title',  
    splitTitle:       '',       
                                
    escapeTitle:      false,    
    showTitle:        true,     
    cluetipClass:     'default',
    hoverClass:       '',       
    waitImage:        true,     
    cursor:           'help',
    arrows:           false,    
    dropShadow:       true,     
    dropShadowSteps:  6,        
    sticky:           false,    
    mouseOutClose:    false,    
    activation:       'hover',  
                                
    clickThrough:     false,    
                                
    tracking:         false,    
    delayedClose:     0,        
    closePosition:    'top',    
    closeText:        'Close',  
    truncate:         0,        

    fx: {             

                      open:       'fadeIn',
                      openSpeed:  ''
    },     

             
    hoverIntent: {    
                      sensitivity:  3,
              			  interval:     50,
              			  timeout:      0
    },

               
    onActivate:       function(e) {return true;},

    
    onShow:           function(ct, c){},
    
    onHide:           function(ct, c){},
    
    ajaxCache:        true,  


    ajaxProcess:      function(data) {
                        data = data.replace(/<s(cript|tyle)(.|\s)*?\/s(cript|tyle)>/g, '').replace(/<(link|title)(.|\s)*?\/(link|title)>/g,'');
                        return data;
    },                

    
    ajaxSettings: {
                      dataType: 'html'
    },
    debug: false
  };


/*
 * Global defaults for clueTips. Apply to all calls to the clueTip plugin.
 *
 * @example $.cluetip.setup({
 *   insertionType: 'prependTo',
 *   insertionElement: '#container'
 * });
 * 
 * @property
 * @name $.cluetip.setup
 * @type Map
 * @cat Plugins/tooltip
 * @option String insertionType: Default is 'appendTo'. Determines the method to be used for inserting the clueTip into the DOM. Permitted values are 'appendTo', 'prependTo', 'insertBefore', and 'insertAfter'
 * @option String insertionElement: Default is 'body'. Determines which element in the DOM the plugin will reference when inserting the clueTip.
 *
 */
   
  var insertionType = 'appendTo', insertionElement = 'body';
  $.cluetip = {};
  $.cluetip.setup = function(options) {
    if (options && options.insertionType && (options.insertionType).match(/appendTo|prependTo|insertBefore|insertAfter/)) {
      insertionType = options.insertionType;
    }
    if (options && options.insertionElement) {
      insertionElement = options.insertionElement;
    }
  };
  
})(jQuery);