// mobiletouch jquery plug
;(function($){
	$.fn.extend({
		mobiletouch:function(opt){
			var defaults = {
				methods : [["down",1]],
				distance : 30,
				ispagescroll : false
			}
			opt = $.extend(defaults,opt);
			if(!opt.ispagescroll){
			$(this)[0].ontouchmove = function(){event.preventdefault();}
			}
			var fingerstartx,fingerstarty,fingermovex,fingermovey;
			function end(event){
				var x = fingermovex?fingermovex-fingerstartx:0;
				var y = fingermovey?fingermovey-fingerstarty:0;
				for(var p in opt.methods){
					switch(opt.methods[p][0].touppercase()){
						case "up":
							if(y<-opt.distance&&opt.upcallback&&opt.methods[p][1]==fingernum)
							opt.upcallback();
							break;
						case "down":
							if(y>opt.distance&&opt.downcallback&&opt.methods[p][1]==fingernum)
							opt.downcallback();
							break;
						case "left":
							if(x<-opt.distance&&opt.leftcallback&&opt.methods[p][1]==fingernum)
							opt.leftcallback();
							break;
						case "right":							
							if(x>opt.distance&&opt.rightcallback&&opt.methods[p][1]==fingernum)
							opt.rightcallback();
							break;
					}	
				}
				
				fingermovex = null;
				fingermovey = null;
				
			}
			var fingernum;
			function start(event){
				fingernum = event.touches.length;
				fingerstartx = event.targettouches[0].clientx;
				fingerstarty = event.targettouches[0].clienty;
			}
			
			
			function move(event){
				fingermovex = event.targettouches[0].clientx;
				fingermovey = event.targettouches[0].clienty;
			}
			
			$(this)[0].addeventlistener("touchend", end, false);
			$(this)[0].addeventlistener("touchstart", start, false);
			$(this)[0].addeventlistener("touchmove", move, false);
			
			return this;
		}	
	});
})(jquery);
/*
$(function(){
	if(client.system.iphone||client.system.ipod||client.system.ipad||client.system.android){
			$("body").mobiletouch({
					ispagescroll:true,
					methods:[
						["left",1],
						["right",1]
					],
					leftcallback:function(){
						$("#nav li.current").prev().find(".a").trigger("click");
					},
					rightcallback:function(){
						$("#nav li.current").next().find(".a").trigger("click");
					}
			});
	}
	
})
*/