(function($) {

	$.extend($.fn, {

		bindContextMenus: function(o, callback) {
			var $this = $(this);
			$('.' + o.ccontext).contextMenu(o, callback);
		},

		contextMenu: function(o, callback) {
			//Defaults
			if( o.cmenu == undefined ) return false;
			if( o.inSpeed == undefined ) o.inSpeed = 150;
			if( o.outSpeed == undefined ) o.outSpeed = 75;
			//0 needs to be -1 for expected results (no fade)
			if( o.inSpeed == 0 ) o.inSpeed = -1;
			if( o.outSpeed == 0 ) o.outSpeed = -1;
			//Loop each context menu
			$(this).each( function() {
				var el = $(this);
				var offset = $(el).offset();
				//Get this context menu
				var menu = $('#' + o.cmenu);
				//Add contextMenu class
				$(menu).addClass('contextMenu');
				//Simulate a true right click
				$(this).mousedown( function(e) {
					var evt = e;
					//Hide context menus that may be showing
					$(menu).hide();
					$(menu).empty();
					$(this).mouseup( function(e) {
						var srcElement = $(this);
						$(this).unbind('mouseup');
						if( evt.button == 2 ) {
							//Populate menu
							el.getMenuElements(o);
							if( $(el).hasClass('disabled') ) return false;

							//Detect mouse position
							var d = {}, x, y;
							if( self.innerHeight ) {
								d.pageYOffset = self.pageYOffset;
								d.pageXOffset = self.pageXOffset;
								d.innerHeight = self.innerHeight;
								d.innerWidth = self.innerWidth;
							} else if( document.documentElement &&
								document.documentElement.clientHeight ) {
								d.pageYOffset = document.documentElement.scrollTop;
								d.pageXOffset = document.documentElement.scrollLeft;
								d.innerHeight = document.documentElement.clientHeight;
								d.innerWidth = document.documentElement.clientWidth;
							} else if( document.body ) {
								d.pageYOffset = document.body.scrollTop;
								d.pageXOffset = document.body.scrollLeft;
								d.innerHeight = document.body.clientHeight;
								d.innerWidth = document.body.clientWidth;
							}
							(e.pageX) ? x = e.pageX : x = e.clientX + d.scrollLeft;
							(e.pageY) ? y = e.pageY : x = e.clientY + d.scrollTop;

							//Show the menu
							$(document).unbind('click');
							$(menu).css({ top: y, left: x }).fadeIn(o.inSpeed);
							//Hover events
							$(menu).find('A').mouseover( function() {
								$(menu).find('LI.hover').removeClass('hover');
								$(this).parent().addClass('hover');
							}).mouseout( function() {
								$(menu).find('LI.hover').removeClass('hover');
							});

							//Keyboard
							$(document).keypress( function(e) {
								switch( e.keyCode ) {
									case 38: //up
										if( $(menu).find('LI.hover').size() == 0 ) {
											$(menu).find('LI:last').addClass('hover');
										} else {
											$(menu).find('LI.hover').removeClass('hover').prevAll('LI:not(.disabled)').eq(0).addClass('hover');
											if( $(menu).find('LI.hover').size() == 0 ) $(menu).find('LI:last').addClass('hover');
										}
									break;
									case 40: //down
										if( $(menu).find('LI.hover').size() == 0 ) {
											$(menu).find('LI:first').addClass('hover');
										} else {
											$(menu).find('LI.hover').removeClass('hover').nextAll('LI:not(.disabled)').eq(0).addClass('hover');
											if( $(menu).find('LI.hover').size() == 0 ) $(menu).find('LI:first').addClass('hover');
										}
									break;
									case 13: //enter
										$(menu).find('LI.hover A').trigger('click');
									break;
									case 27: //esc
										$(document).trigger('click');
									break
								}
							});

							//When items are selected
							$('#' + o.cmenu).find('A').unbind('click');
							$('#' + o.cmenu).find('LI:not(.disabled) A').click( function() {
								$(document).unbind('click').unbind('keypress');
								$(".contextMenu").hide();
								//Callback
								if( callback ) callback( $(this).data('element'), $(srcElement), {x: x - offset.left, y: y - offset.top, docX: x, docY: y} );
								return false;
							});

							//Hide bindings
							setTimeout( function() { //Delay for Mozilla
								$(document).click( function() {
									$(document).unbind('click').unbind('keypress');
									$(menu).fadeOut(o.outSpeed);
									//Empty menu when closed
									$(menu).empty();
									return false;
								});
							}, 0);
						}
					});
				});

				//Disable text selection
				if( $.browser.mozilla ) {
					$('#' + o.cmenu).each( function() { $(this).css({ 'MozUserSelect' : 'none' }); });
				} else if( $.browser.msie ) {
					$('#' + o.cmenu).each( function() { $(this).bind('selectstart.disableTextSelect', function() { return false; }); });
				} else {
					$('#' + o.cmenu).each(function() { $(this).bind('mousedown.disableTextSelect', function() { return false; }); });
				}
				//Disable browser context menu (requires both selectors to work in IE/Safari + FF/Chrome)
				$(el).add('UL.contextMenu').bind('contextmenu', function() { return false; });

			});
			return $(this);
		},

		//Disable context menu items on the fly
		disableContextMenuItems: function(o) {
			if( o == undefined ) {
				//Disable all
				$(this).find('LI').addClass('disabled');
				return( $(this) );
			}
			$(this).each( function() {
				if( o != undefined ) {
					var d = o.split(',');
					for( var i = 0; i < d.length; i++ ) {
						$(this).find('A[href="' + d[i] + '"]').parent().addClass('disabled');

					}
				}
			});
			return( $(this) );
		},

		//Enable context menu items on the fly
		enableContextMenuItems: function(o) {
			if( o == undefined ) {
				//Enable all
				$(this).find('LI.disabled').removeClass('disabled');
				return( $(this) );
			}
			$(this).each( function() {
				if( o != undefined ) {
					var d = o.split(',');
					for( var i = 0; i < d.length; i++ ) {
						$(this).find('A[href="' + d[i] + '"]').parent().removeClass('disabled');

					}
				}
			});
			return( $(this) );
		},

		//Disable context menu(s)
		disableContextMenu: function() {
			$(this).each( function() {
				$(this).addClass('disabled');
			});
			return( $(this) );
		},

		//Enable context menu(s)
		enableContextMenu: function() {
			$(this).each( function() {
				$(this).removeClass('disabled');
			});
			return( $(this) );
		},

		//Destroy context menu(s)
		destroyContextMenu: function() {
			//Destroy specified context menus
			$(this).each( function() {
				//Disable action
				$(this).unbind('mousedown').unbind('mouseup');
			});
			return( $(this) );
		},

		getMenuElements: function(o) {
			var $this = $(this);
			var $menu = $('#' + o.cmenu);
			var caption = $this.attr('class').match(/ctx_\w+/);
			if (caption != null) {
				var section = document.createElement('span');
				$(section).text(caption[0].slice(4));
				$(section).appendTo($menu).wrap('<li></li>');
				$(section).parent().addClass('caption');
			}
			var $children = $this.findUntilContainer();
			if ($children.length == 0 && section != null) {
			  var a = document.createElement('span');
				$(a).applyElementData(this);
				$(a).appendTo($menu).wrap('<li><i></i></li>');
			  $(a).text('Keine Aktion verfügbar');
			}
			$children.map(function () {
				var a = document.createElement('a');
				$(a).applyElementData(this);
				$(a).appendTo($menu).wrap('<li></li>');
      });
		},

		applyElementData: function(element) {
			var $element = $(element);
			var data = {};
			switch ($element[0].tagName.toLowerCase()) {
			  case "img":
			  	$(this).html('image');
			  	$(this).css('background-image', 'url(' + $element.attr('src') + ')');
			    break;
			  case "input":
			  	if ($element.attr('type').toLowerCase() == 'image') $(this).html( $element.attr('title') );
			  	else if ($element.attr('type').toLowerCase() == 'submit') $(this).html( $element.attr('value') );
			  	$(this).css('background-image', 'url(' + $element.attr('src') + ')');
			    break;
			  case "a":
			  	$(this).css('background-image', 'url(' + $element.find('img:first').attr('src') + ')');
			  	$(this).html( $element.attr('title') );
			  	$(this).attr('href', $element.attr('href'));
			  	break;
			  default:
			    break;
			}
			$(this).data('element', '#' + $element.attr('id'));
		},

		findUntilContainer: function() {
			//var $items = $(this).children('.contextitem:visible');
			var $items = $(this).children('.contextitem');
			$(this).children(":not(.contextcontainer)").each(function() { $items = $items.add( $(this).findUntilContainer() ); });
			return $items;
		}

	});

})(jQuery);