/*
 * 	Easy Slider 1.7 - jQuery plugin
 *	written by Alen Grakalic	
 *	http://cssglobe.com/post/4004/easy-slider-15-the-easiest-jquery-plugin-for-sliding
 *
 *	Copyright (c) 2009 Alen Grakalic (http://cssglobe.com)
 *	Dual licensed under the MIT (MIT-LICENSE.txt)
 *	and GPL (GPL-LICENSE.txt) licenses.
 *
 *	Built for jQuery library
 *	http://jquery.com
 *
 */
 

(function($) {

	$.fn.easySlider = function(options){
	  
		// default configuration properties
		var defaults = {			
			prevId: 		'prevBtn',
			prevText: 		'Previous',
			nextId: 		'nextBtn',	
			nextText: 		'Next',
			controlsShow:	true,
			controlsBefore:	'',
			controlsAfter:	'',	
			controlsFade:	true,
			firstId: 		'firstBtn',
			firstText: 		'First',
			firstShow:		false,
			lastId: 		'lastBtn',	
			lastText: 		'Last',
			lastShow:		false,				
			vertical:		false,
			speed: 			800,
			auto:			false,
			pause:			10000,
			continuous:		false, 
			numeric: 		false,
			numericId: 		'controls'
		}; 
		

		var options = $.extend(defaults, options);
				
		this.each(function() {  
			var obj = $(this); 				
			var s = $("li", obj).length;
			var w = $("li", obj).width(); 
			var h = $("li", obj).height(); 
			var clickable = true;
			obj.width(w); 
			obj.height(h); 
			obj.css("overflow","hidden");
			var ts = s-1;
			var t = 0;
			$("ul", obj).css('width',s*w);			
			
			if(options.continuous){
				$("ul", obj).prepend($("ul li:last-child", obj).clone().css("margin-left","-"+ w +"px"));
				$("ul", obj).append($("ul li:nth-child(2)", obj).clone());
				$("ul", obj).css('width',(s+1)*w);
			};				
			
			if(!options.vertical) $("li", obj).css('float','left');
								
			if(options.controlsShow){
				var html = options.controlsBefore;				
				if(options.numeric){
					html += '<ol id="'+ options.numericId +'"></ol>';
				} else {
					if(options.firstShow) html += '<span id="'+ options.firstId +'"><a href=\"javascript:void(0);\">'+ options.firstText +'</a></span>';
					html += ' <span id="'+ options.prevId +'"><a href=\"javascript:void(0);\">'+ options.prevText +'</a></span>';
					html += ' <span id="'+ options.nextId +'"><a href=\"javascript:void(0);\">'+ options.nextText +'</a></span>';
					if(options.lastShow) html += ' <span id="'+ options.lastId +'"><a href=\"javascript:void(0);\">'+ options.lastText +'</a></span>';				
				};
				
				html += options.controlsAfter;						
				$(obj).after(html);										
			};
			
			if(options.numeric){									
				for(var i=0;i<s;i++){						
					$(document.createElement("li"))
						.attr('id',options.numericId + (i+1))
						.html('<a rel='+ i +' href=\"javascript:void(0);\">'+ (i+1) +'</a>')
						.appendTo($("#"+ options.numericId))
						.click(function(){							
							animate($("a",$(this)).attr('rel'),true);
						}); 												
				};							
			} else {
				$("a","#"+options.nextId).click(function(){		
					animate("next",true);
				});
				$("a","#"+options.prevId).click(function(){		
					animate("prev",true);				
				});	
				$("a","#"+options.firstId).click(function(){		
					animate("first",true);
				});				
				$("a","#"+options.lastId).click(function(){		
					animate("last",true);				
				});				
			};
			
			function setCurrent(i){
				i = parseInt(i)+1;
				$("li", "#" + options.numericId).removeClass("current");
				$("li#" + options.numericId + i).addClass("current");
			};
			
			function adjust(){
				if(t>ts) t=0;		
				if(t<0) t=ts;	
				if(!options.vertical) {
					$("ul",obj).css("margin-left",(t*w*-1));
				} else {
					$("ul",obj).css("margin-left",(t*h*-1));
				}
				clickable = true;
				if(options.numeric) setCurrent(t);
			};
			
			function animate(dir,clicked){
				if (clickable){
					clickable = false;
					var ot = t;				
					switch(dir){
						case "next":
							t = (ot>=ts) ? (options.continuous ? t+1 : ts) : t+1;						
							break; 
						case "prev":
							t = (t<=0) ? (options.continuous ? t-1 : 0) : t-1;
							break; 
						case "first":
							t = 0;
							break; 
						case "last":
							t = ts;
							break; 
						default:
							t = dir;
							break; 
					};	
					var diff = Math.abs(ot-t);
					var speed = diff*options.speed;						
					if(!options.vertical) {
						p = (t*w*-1);
						$("ul",obj).animate(
							{ marginLeft: p }, 
							{ queue:false, duration:speed, complete:adjust }
						);				
					} else {
						p = (t*h*-1);
						$("ul",obj).animate(
							{ marginTop: p }, 
							{ queue:false, duration:speed, complete:adjust }
						);					
					};
					
					if(!options.continuous && options.controlsFade){					
						if(t==ts){
							$("a","#"+options.nextId).hide();
							$("a","#"+options.lastId).hide();
						} else {
							$("a","#"+options.nextId).show();
							$("a","#"+options.lastId).show();					
						};
						if(t==0){
							$("a","#"+options.prevId).hide();
							$("a","#"+options.firstId).hide();
						} else {
							$("a","#"+options.prevId).show();
							$("a","#"+options.firstId).show();
						};					
					};				
					
					if(clicked) clearTimeout(timeout);
					if(options.auto && dir=="next" && !clicked){;
						timeout = setTimeout(function(){
							animate("next",false);
						},diff*options.speed+options.pause);
					};
			
				};
				
			};
			// init
			var timeout;
			if(options.auto){;
				timeout = setTimeout(function(){
					animate("next",false);
				},options.pause);
			};		
			
			if(options.numeric) setCurrent(0);
		
			if(!options.continuous && options.controlsFade){					
				$("a","#"+options.prevId).hide();
				$("a","#"+options.firstId).hide();				
			};				
			
		});
	  
	};


this.nav = function() {
	$("#nav a").css("display","none");
	$("#nav a").css("background-position","0 -69px");
	$("#nav li").css("cursor","pointer");
 	$("#nav li").hover(
      function(){
        $("a",this).fadeIn("slow");
      }, 
      function(){
        $("a",this).fadeOut("fast");
      }
    );	
};
this.slideshow = function(obj) {	
		//var obj = $("#slider2");
		var s = $("li", obj).length;
		var w = obj.width(); 		
		var ts = s-1;
		var t = 0;
		$("ul", obj).css("width",s*w);
		$(obj).parent().append("<span class=\"prev\"><a href=\"javascript:void(0);\"><img src=\"afbeeldingen/pijl3.png\" border=\"0\"></a></span> <span class=\"next\"><a href=\"javascript:void(0);\"><img src=\"afbeeldingen/pijl2.png\" border=\"0\"></a></span>");
		
		$(".prev a", obj.parent()).hide();
		$(".next a", obj.parent()).click(function(){		
			animate("next");
			if (t>=ts) $(this).fadeOut();
			$(".prev a", obj.parent()).fadeIn();
		});
		$(".prev a", obj.parent()).click(function(){		
			animate("prev");
			if (t<=0) $(this).fadeOut();
			$(".next a", obj.parent()).fadeIn();
		});	
		this.animate = function(dir){
			if(dir == "next"){
				t = (t>=ts) ? ts : t+1;	
			} else {
				t = (t<=0) ? 0 : t-1;
			};		
			p = (t*w*-1);		
			$("ul",obj).animate(
				{ marginLeft: p }, 
				400
			);	
		};

};
this.preview = function() {
	if(document.body.id == "preview"){		
		$("body").each(function(){
			h = $(window).height();
			w = $(window).width();		

		});	
	}
};

this.pngfix = function() {
	var ie55 = (navigator.appName == "Microsoft Internet Explorer" && parseInt(navigator.appVersion) == 4 && navigator.appVersion.indexOf("MSIE 5.5") != -1);
	var ie6 = (navigator.appName == "Microsoft Internet Explorer" && parseInt(navigator.appVersion) == 4 && navigator.appVersion.indexOf("MSIE 6.0") != -1);
	if (jQuery.browser.msie && (ie55 || ie6)) {		
		$("*").each(function(){
			var bgIMG = $(this).css('background-image');
			if(bgIMG.indexOf(".png")!=-1){
				var iebg = bgIMG.split('url("')[1].split('")')[0];
				$(this).css('background-image', 'none');
				$(this).get(0).runtimeStyle.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + iebg + "',sizingMethod='scale')";
			};
		});
	};		
};

this.init = function() {
	pngfix();
	//nav();	
	$("#slider2").each(function(){	
		slideshow($(this));	
	});		
	preview();
};

$(document).ready(function(){	
	init();
});


})(jQuery);