/**
 * HoverAccordion - jQuery plugin for intuitively opening accordions and menus
 * http://berndmatzner.de/jquery/hoveraccordion/
 * Copyright (c) 2008 Bernd Matzner
 * Dual licensed under the MIT and GPL licenses:
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.gnu.org/licenses/gpl.html
 * Version: 0.5.0
 */
(function($){
		  $.fn.hoverAccordion=function(options){
			  options=jQuery.extend({
									speed:'normal',
									activateitem:'true',
									active:'active',
									header:'header',
									hover:'hover',
									opened:'opened',
									closed:'closed',
									keepheight:'true'
								},options);
			  var thislist=this;
			  
			  var thisurl=window.location.href;
			  
			  var i=0;
			  
			  function doHover(obj){
				  if($(obj).html()==undefined)
				  obj=this;
				  
				  if(!thislist.is(':animated')){
					  var newelem=$(obj).parent().children('ul');
					  var oldelem=$(obj).parent().parent().children('li').children('ul:visible');
					  if(options.keepheight=='true'){
						  thisheight=maxheight;
					  }
					  else{
						  thisheight=newelem.height();
					  }if(!newelem.is(':visible')){
						  newelem.children().hide();
						  newelem.animate({
								height:thisheight
							},{
								step:function(n,fx){
									newelem.height(thisheight-n);
									},
									duration:options.speed
									}).children().show();
						  
						  oldelem.animate({
									height:'hide'
							},{
								step:function(n,fx){
									newelem.height(thisheight-n);
								},
								duration:options.speed
							}).children().hide();
						  
						  oldelem.parent().children('a').addClass(options.closed).removeClass(options.opened);
						  newelem.parent().children('a').addClass(options.opened).removeClass(options.closed);
						  }
					}
			};
			
			var itemNo=0;
			var maxheight=0;
			
			$(this).children('li').each(function(){
					var thisitem=$(this);
					
					itemNo++;
					
					var thislink=thisitem.children('a');
					
					if(thislink.length>0){
						thislink.hover(function(){
							$(this).addClass(options.hover);
						},function(){
							$(this).removeClass(options.hover);
					});
						
					var thishref=thislink.attr('href');
					
					if(thishref=='#'){
						
					   thislink.click(function(){
						 	doHover(this);
							this.blur();
							return false;
						});
					}
					else 
						if(options.activateitem=='true'&&thisurl.indexOf(thishref)>0&&thisurl.length-thisurl.lastIndexOf(thishref)==thishref.length){
							thislink.parent().addClass(options.active);
						}
				}
				
				var thischild=thisitem.children('ul');
				
				if(thischild.length>0){
					if(maxheight<thischild.height())
					   maxheight=thischild.height();
					   
					thischild.children('li.'+options.active).parent().parent().children('a').addClass(options.header);
					
					thislink.hover(function(){
							var t=this;
							i=setInterval(function(){
							  doHover(t);
							  clearInterval(i);
							},400);
						},function(){
							clearInterval(i);
						});
					
					if(options.activateitem=='true'){
						thischild.children('li').each(function(){
							var m=$(this).children('a').attr('href');
							if(m){
								if(thisurl.indexOf(m)>0&&thisurl.length-thisurl.lastIndexOf(m)==m.length){
									$(this).addClass(options.active).parent().parent().children('a').addClass(options.opened);
								}
							}
						});
					}
					else 
						if(parseInt(options.activateitem)==itemNo){
							thisitem.addClass(options.active).children('a').addClass(options.opened);
						}
				}
				
				thischild.not($(this).parent().children('li.'+options.active).children('ul')).not(thischild.children('li.'+options.active).parent()).hide().parent().children('a').addClass(options.closed);
				});
			return this;
		};
	})(jQuery);