$.fn.extend({flyout : function(options) {
	
		var shown=false;
		var animating=false;
		var $holder;
		var $thumb;
		var tloc;
		var th;
		var tw;
		var bigimg = new Image();
		var subType = 'img';
		var offset;
		
		this.click(function() {
			if (animating == true) { return false; }
	
			if (shown) { putAway(this); }
			else { flyOut(this); }
	
			return false;
		});
		
		var o = jQuery.extend({
			outSpeed : 1000,
			inSpeed : 500,
			outEase : 'swing',
			inEase : 'swing',
			loadingSrc: null,
			loader: 'loader',
			loaderZIndex: 500,
			widthMargin: 40,
			heightMargin: 40,
			loadingText : "Загружается...",
			closeTip : " - Кликните на картинку чтобы её закрыть",
			destPadding: 20,
			startOffsetX: 0,
			startOffsetY: 0,
			startHeight: 0,
			startWidth: 0,
			flyOutStart: function() {},
			flyOutFinish: function() {},
			putAwayStart: function() {},
			putAwayFinish: function() {},
			shownClass: 'shown'
		}, options);
	
		function flyOut(it) {
			animating = true;
			
			$holder = $(it);
			$thumb = $('img',it);
			bigimg = new Image(); 
			sL = $(window).scrollLeft();
			sT = $(window).scrollTop();
			tloc = $thumb.offset();
			tloc.left += o.startOffsetX;
			tloc.top += o.startOffsetY;
			th = (o.startHeight > 0 ? o.startHeight : $thumb.height());
			tw = (o.startWidth > 0 ? o.startWidth : $thumb.width());
			
			$('<div></div>').attr('id',o.loader)
							.appendTo('body')
							.css({'position':'absolute',
								'top':tloc.top,
								'left':tloc.left,
								'height':th,
								'width':tw,
								'opacity':.5,
								'display':'block',
								'z-index':o.loaderZIndex});

			if (o.loadingSrc) {
				$('#'+o.loader).append($('<img/>')
								.load(function() {
										$(this)
											.css({'position':'relative',
												 'top':th/2-(this.height/2),
												 'left':tw/2-(this.width/2)})
											.attr('alt',o.loadingText);
										})
									.attr('src',o.loadingSrc)
								);
			}
			else {
				$('#'+o.loader).css('background-color','#000')
								.append($('<span></span>')
										  	.text(o.loadingText)
											.css({'position':'relative',
												 'top':'2px',
												 'left':'2px',
												 'color':'#FFF',
												 'font-size':'9px'})
									 	);
			}

			$(bigimg).load(function() {
				imgtag = $('<img/>').attr('src',$holder.attr('href')).attr('title',$thumb.attr('title')+o.closeTip).attr('alt',$thumb.attr('alt')+o.closeTip).height(th).width(tw);

				o.flyOutStart.call(it);

				if (o.destElement) {
					var $dest = $(o.destElement);
					max_x = $dest.innerWidth() - (o.destPadding*2);
					max_y = $dest.innerHeight() - (o.destPadding*2);
				}
				else {
					max_x = $(window).width()-o.widthMargin;
					if ($.browser.opera) 
						wh = document.getElementsByTagName('html')[0].clientHeight;
					else 
						wh = $(window).height();
					max_y = wh-o.heightMargin;
				}

				width = bigimg.width;
				height = bigimg.height;
	
				x_dim = max_x / width;
				y_dim = max_y / height;
	
				if (x_dim <=y_dim) {
					y_dim = x_dim;
				} else {
					x_dim = y_dim;
				}
				
				dw = Math.round(width  * x_dim);
				dh = Math.round(height * y_dim);
				if (dw>width) {dw = width}
				if (dh>height) {dh = height}
				
				if (o.destElement) {
					dPos = $dest.offset();
					dl = Math.round(($dest.outerWidth()/2)-(dw/2)+dPos.left);
					dt = Math.round(($dest.outerHeight()/2)-(dh/2)+dPos.top);
				}
				else {
					dl = Math.round(($(window).width()/2)-(dw/2)+sL);
					if ($.browser.opera) 
						wh = document.getElementsByTagName('html')[0].clientHeight;
					else 
						wh = $(window).height();
					dt = Math.round((wh/2)-(dh/2)+sT);
				}
				
				$('#'+o.loader).empty().css('opacity',1).append(imgtag).width('auto').height('auto').animate({top:dt, left:dl},{duration:o.outSpeed, queue:false, easing:o.outEase});
				$('#'+o.loader+' '+subType).animate({height:dh, width:dw}, o.outSpeed, o.outEase,
				function() {
					o.flyOutFinish.call(it);
					shown = it;
					$holder.addClass(o.shownClass);
					animating=false;
					$('#'+o.loader+' '+subType).click(function(){putAway(null)})
				});
			});
			bigimg.src = $holder.attr('href');
		}
	
	
		function putAway(next) {
			// for future development:
			if (animating == true || shown == false) {return false;}
			o.putAwayStart.call(shown);
			
			animating = true;
			
			// check $thumb loc again, in case it moved...
			tloc = $thumb.offset();
			tloc.left += o.startOffsetX;
			tloc.top += o.startOffsetY;

			$('#'+o.loader).animate({top:tloc.top, left:tloc.left},{duration:o.inSpeed, queue:false, easing:o.inEase});
			$('#'+o.loader+' '+subType).animate({height:th, width:tw}, 
				o.inSpeed, o.inEase, 
				function() {
					$('#'+o.loader).css('display','none').remove(); 
					o.putAwayFinish.call(shown);
					animating=false;
					bigimg=null;			
					if (next && next != shown) {
						shown = false;
						flyOut(next);
					}
					shown = false;
					$holder.removeClass(o.shownClass);
				});
		}
		
		return this;	// never break the chain
		
	}
});



ImageSwitcher = function(container) {
    this.container = container;
    this.img_num = 0;
    this.preloaded = [];
}

ImageSwitcher.prototype = {
    init: function() {
        var _this = this;
        $('.iswitcher', this.getContainer())
            .click(function() { _this.onClick(this); })
            .addClass('clickable');
        this.refreshChanger();
        this.preload();
    },
    
    onClick: function(el) {
        this.switchImage(this.getChangerNum(el));
    },
    
    getChangerNum: function(el) {
        return $(el).prevAll('.iswitcher').length;
    },
    
    getImage: function(num) {
        return $('.is_image:eq(' + num + ')', this.getContainer())
    },
    
    switchImage: function(img_num) {
        this.getImage(this.img_num).hide();
        this.getImage(img_num).show();
        this.img_num = img_num;
        this.refreshChanger();
    },
    
    refreshChanger: function() {
        var cur_img = this.img_num;
        $('.iswitcher', this.getContainer()).each(function(i) {
          var el = $(this);
          if(el.hasClass('act')) {
              el.removeClass('act').addClass('clickable');
          }
          if(i == cur_img) {
              el.removeClass('clickable').addClass('act');
          }
        });
    },
    
    preload: function() {
        this.preloaded = [];
        var _this = this;
        $('.is_image').each(function() {
            var image = new Image();
            image.src = this.src;
            _this.preloaded.push(image);
        });
    },
    
    getContainer: function() {
        return $(this.container);
    }
}

var ddaccordion={
	
	contentclassname:{}, //object to store corresponding contentclass name based on headerclass

	expandone:function(headerclass, selected){ //PUBLIC function to expand a particular header
		this.toggleone(headerclass, selected, "expand")
	},

	collapseone:function(headerclass, selected){ //PUBLIC function to collapse a particular header
		this.toggleone(headerclass, selected, "collapse")
	},

	expandall:function(headerclass){ //PUBLIC function to expand all headers based on their shared CSS classname
		var $=jQuery
		var $headers=$('.'+headerclass)
		$('.'+this.contentclassname[headerclass]+':hidden').each(function(){
			$headers.eq(parseInt($(this).attr('contentindex'))).trigger("evt_accordion")
		})
	},

	collapseall:function(headerclass){ //PUBLIC function to collapse all headers based on their shared CSS classname
		var $=jQuery
		var $headers=$('.'+headerclass)
		$('.'+this.contentclassname[headerclass]+':visible').each(function(){
			$headers.eq(parseInt($(this).attr('contentindex'))).trigger("evt_accordion")
		})
	},

	toggleone:function(headerclass, selected, optstate){ //PUBLIC function to expand/ collapse a particular header
		var $=jQuery
		var $targetHeader=$('.'+headerclass).eq(selected)
		var $subcontent=$('.'+this.contentclassname[headerclass]).eq(selected)
		if (typeof optstate=="undefined" || optstate=="expand" && $subcontent.is(":hidden") || optstate=="collapse" && $subcontent.is(":visible"))
			$targetHeader.trigger("evt_accordion")
	},

	expandit:function($targetHeader, $targetContent, config, useractivated){
		$targetContent.slideDown(config.animatespeed, function(){config.onopenclose($targetHeader.get(0), parseInt($targetHeader.attr('headerindex')), $targetContent.css('display'), useractivated)})
		this.transformHeader($targetHeader, config, "expand")
	},

	collapseit:function($targetHeader, $targetContent, config, isuseractivated){
		$targetContent.slideUp(config.animatespeed, function(){config.onopenclose($targetHeader.get(0), parseInt($targetHeader.attr('headerindex')), $targetContent.css('display'), isuseractivated)})
		this.transformHeader($targetHeader, config, "collapse")
	},

	transformHeader:function($targetHeader, config, state){
		$targetHeader.addClass((state=="expand")? config.cssclass.expand : config.cssclass.collapse) //alternate btw "expand" and "collapse" CSS classes
		.removeClass((state=="expand")? config.cssclass.collapse : config.cssclass.expand)
		if (config.htmlsetting.location=='src'){ //Change header image (assuming header is an image)?
			$targetHeader=($targetHeader.is("img"))? $targetHeader : $targetHeader.find('img').eq(0) //Set target to either header itself, or first image within header
			$targetHeader.attr('src', (state=="expand")? config.htmlsetting.expand : config.htmlsetting.collapse) //change header image
		}
		else if (config.htmlsetting.location=="prefix") //if change "prefix" HTML, locate dynamically added ".accordprefix" span tag and change it
			$targetHeader.find('.accordprefix').html((state=="expand")? config.htmlsetting.expand : config.htmlsetting.collapse)
		else if (config.htmlsetting.location=="suffix")
			$targetHeader.find('.accordsuffix').html((state=="expand")? config.htmlsetting.expand : config.htmlsetting.collapse)
	},

	urlparamselect:function(headerclass){
		var result=window.location.search.match(new RegExp(headerclass+"=((\\d+)(,(\\d+))*)", "i")) //check for "?headerclass=2,3,4" in URL
		if (result!=null)
			result=RegExp.$1.split(',')
		return result //returns null, [index], or [index1,index2,etc], where index are the desired selected header indices
	},

	getCookie:function(Name){ 
		var re=new RegExp(Name+"=[^;]+", "i") //construct RE to search for target name/value pair
		if (document.cookie.match(re)) //if cookie found
			return document.cookie.match(re)[0].split("=")[1] //return its value
		return null
	},

	setCookie:function(name, value){
		document.cookie = name + "=" + value + "; path=/"
	},

	init:function(config){
	document.write('<style type="text/css">\n')
	document.write('.'+config.contentclass+'{display: none}\n') //generate CSS to hide contents
	document.write('<\/style>')
	jQuery(document).ready(function($){
		ddaccordion.urlparamselect(config.headerclass)
		var persistedheaders=ddaccordion.getCookie(config.headerclass)
		ddaccordion.contentclassname[config.headerclass]=config.contentclass //remember contentclass name based on headerclass
		config.cssclass={collapse: config.toggleclass[0], expand: config.toggleclass[1]} //store expand and contract CSS classes as object properties
		config.revealtype=/^(click)|(mouseover)$/i.test(config.revealtype)? config.revealtype.replace(/mouseover/i, "mouseenter") : "click"
		config.htmlsetting={location: config.togglehtml[0], collapse: config.togglehtml[1], expand: config.togglehtml[2]} //store HTML settings as object properties
		config.oninit=(typeof config.oninit=="undefined")? function(){} : config.oninit //attach custom "oninit" event handler
		config.onopenclose=(typeof config.onopenclose=="undefined")? function(){} : config.onopenclose //attach custom "onopenclose" event handler
		var lastexpanded={} //object to hold reference to last expanded header and content (jquery objects)
		var expandedindices=ddaccordion.urlparamselect(config.headerclass) || ((config.persiststate && persistedheaders!=null)? persistedheaders : config.defaultexpanded)
		if (typeof expandedindices=='string') //test for string value (exception is config.defaultexpanded, which is an array)
			expandedindices=expandedindices.replace(/c/ig, '').split(',') //transform string value to an array (ie: "c1,c2,c3" becomes [1,2,3]
		var $subcontents=$('.'+config["contentclass"])
		if (expandedindices.length==1 && expandedindices[0]=="-1") //check for expandedindices value of [-1], indicating persistence is on and no content expanded
			expandedindices=[]
		if (config["collapseprev"] && expandedindices.length>1) //only allow one content open?
			expandedindices=[expandedindices.pop()] //return last array element as an array (for sake of jQuery.inArray())
		if (config["onemustopen"] && expandedindices.length==0) //if at least one content should be open at all times and none are, open 1st header
			expandedindices=[0]
		$('.'+config["headerclass"]).each(function(index){ //loop through all headers
			if (/(prefix)|(suffix)/i.test(config.htmlsetting.location) && $(this).html()!=""){ //add a SPAN element to header depending on user setting and if header is a container tag
				$('<span class="accordprefix"></span>').prependTo(this)
				$('<span class="accordsuffix"></span>').appendTo(this)
			}
			$(this).attr('headerindex', index+'h') //store position of this header relative to its peers
			$subcontents.eq(index).attr('contentindex', index+'c') //store position of this content relative to its peers
			var $subcontent=$subcontents.eq(index)
			var needle=(typeof expandedindices[0]=="number")? index : index+'' //check for data type within expandedindices array- index should match that type
			if (jQuery.inArray(needle, expandedindices)!=-1){ //check for headers that should be expanded automatically (convert index to string first)
				if (config.animatedefault==false)
					$subcontent.show()
				ddaccordion.expandit($(this), $subcontent, config, false) //Last Boolean value sets 'isuseractivated' parameter
				lastexpanded={$header:$(this), $content:$subcontent}
			}  //end check
			else{
				$subcontent.hide()
				config.onopenclose($(this).get(0), parseInt($(this).attr('headerindex')), $subcontent.css('display'), false) //Last Boolean value sets 'isuseractivated' parameter
				ddaccordion.transformHeader($(this), config, "collapse")
			}
		})
		$('.'+config["headerclass"]).bind("evt_accordion", function(){ //assign custom event handler that expands/ contacts a header
				var $subcontent=$subcontents.eq(parseInt($(this).attr('headerindex'))) //get subcontent that should be expanded/collapsed
				if ($subcontent.css('display')=="none"){
					ddaccordion.expandit($(this), $subcontent, config, true) //Last Boolean value sets 'isuseractivated' parameter
					if (config["collapseprev"] && lastexpanded.$header && $(this).get(0)!=lastexpanded.$header.get(0)){ //collapse previous content?
						ddaccordion.collapseit(lastexpanded.$header, lastexpanded.$content, config, true) //Last Boolean value sets 'isuseractivated' parameter
					}
					lastexpanded={$header:$(this), $content:$subcontent}
				}
				else if (!config["onemustopen"] || config["onemustopen"] && lastexpanded.$header && $(this).get(0)!=lastexpanded.$header.get(0)){
					ddaccordion.collapseit($(this), $subcontent, config, true) //Last Boolean value sets 'isuseractivated' parameter
				}
 		})
		$('.'+config["headerclass"]).bind(config.revealtype, function(){
			if (config.revealtype=="mouseenter"){
				clearTimeout(config.revealdelay)
				var headerindex=parseInt($(this).attr("headerindex"))
				config.revealdelay=setTimeout(function(){ddaccordion.expandone(config["headerclass"], headerindex)}, config.mouseoverdelay || 0)
			}
			else{
				$(this).trigger("evt_accordion")
				return false //cancel default click behavior
			}
		})
		$('.'+config["headerclass"]).bind("mouseleave", function(){
			clearTimeout(config.revealdelay)
		})
		config.oninit($('.'+config["headerclass"]).get(), expandedindices)
		$(window).bind('unload', function(){ //clean up and persist on page unload
			$('.'+config["headerclass"]).unbind()
			var expandedindices=[]
			$('.'+config["contentclass"]+":visible").each(function(index){ //get indices of expanded headers
				expandedindices.push($(this).attr('contentindex'))
			})
			if (config.persiststate==true){ //persist state?
				expandedindices=(expandedindices.length==0)? '-1c' : expandedindices //No contents expanded, indicate that with dummy '-1c' value?
				ddaccordion.setCookie(config.headerclass, expandedindices)
			}
		})
	})
	}
}



ddaccordion.init({headerclass: "ho", contentclass: "opis", revealtype: "click", collapseprev: true, defaultexpanded: [], animatedefault: true, persiststate: false, toggleclass: ["col", "cal"],	togglehtml: ["prefix", "", ""], animatespeed: "fast", oninit:function(expandedindices){}, onopenclose:function(header, index, state, isuseractivated){}})