var _height=$(window).height();//获取当前窗口的高度
var _width=$(window).width();//获取当前窗口的宽度
$('#focusbar').css('height',_height+'px');//调整列表的宽高

$(function() {

	$("#focusindex1").show();
	$("#focusbar li").css("width",$(window).width());
	$("a.arrl").mouseover(function(){stopfocusam();}).mouseout(function(){starfocustam();});
	$("a.arrr").mouseover(function(){stopfocusam();}).mouseout(function(){starfocustam();});
	$("#focusbar li").mouseover(function(){stopfocusam();}).mouseout(function(){starfocustam();});
	starfocustam();

});
	
/*------focus-------*/
$("#focusbar").hover(
	function () {
		$("#focusbar .arrl").stop(false,true);
		$("#focusbar .arrr").stop(false,true);
		$("#focusbar .arrl").animate({'left': '0','opacity': '1'}, { duration: 500 });
		$("#focusbar .arrr").animate({'right': '0','opacity': '1'}, { duration: 500 });
	}, function () {
		$("#focusbar .arrl").stop(false,true);
		$("#focusbar .arrr").stop(false,true);
		$("#focusbar .arrl").animate({'left': '-52','opacity': '0'}, { duration: 500 });
		$("#focusbar .arrr").animate({'right': '-52','opacity': '0'}, { duration: 500 });
	}
);

var timerfid;

function nextpage() {
	changefocus(true);
}
function prepage() {
	changefocus(false);
}

var currentfocusi=1;
var changeingfocus = false;
function changefocus(dir) {
	if($("#focusbar li").length <= 1) return;
	if(changeingfocus) return;
	changeingfocus = true;
	
	$("#focusindex"+nexti).stop(false,true);
	$("#focusindex"+nexti+" .focusl").stop(false,true);
	$("#focusindex"+nexti+" .focusr").stop(false,true);
	$("#focusindex"+nexti+" .zhezhao").stop(false,true);
	var nexti = dir?currentfocusi+1:currentfocusi-1;
	nexti = nexti>$("#focusbar li").length?1:(nexti<1?$("#focusbar li").length:nexti);
	//var focuswidth = $(window).width()>1000?1000:$(window).width();
	$("#focusindex"+currentfocusi).css("width",$(window).width());
	$("#focusindex"+nexti).css("width",$(window).width());
	if(dir) {
		$("#focusindex"+nexti).css("left",$(window).width());
		$("#focusindex"+nexti+" .focusl").css("left",$(window).width()/2);
		$("#focusindex"+nexti+" .focusr").css("left",$(window).width()/2);
		$("#focusindex"+nexti+" .zhezhao").css("left",$(window).width()/2);
		$("#focusindex"+currentfocusi).show();
		$("#focusindex"+nexti).show();
		
		$("#focusindex"+currentfocusi+" .focusl").animate({left: -($(window).width()/2+1000)},1200,'easeinexpo');
		$("#focusindex"+currentfocusi+" .zhezhao").animate({left: -($(window).width()/2+1000)},1400,'easeinexpo');
		$("#focusindex"+currentfocusi+" .focusr").animate({left: -($(window).width()/2+1000)},900,'easeinexpo',function(){
				$("#focusindex"+nexti+" .focusl").animate({left: -640},1200,'easeinoutcirc');
				$("#focusindex"+nexti+" .focusr").animate({left: -640},900,'easeinoutcirc');
				$("#focusindex"+nexti+" .zhezhao").animate({left: -710},1400,'easeinoutcirc');
				
				$("#focusindex"+currentfocusi).animate({left: -$(window).width()},1800,'easeoutexpo');
				$("#focusindex"+nexti).animate({left: 0},1800,'easeoutexpo',function(){
						$("#focusindex"+currentfocusi).hide();
						currentfocusi = nexti;
						changeingfocus = false;
				});
		});
	} else {
		$("#focusindex"+nexti).css("left",-$(window).width());
		$("#focusindex"+nexti+" .focusl").css("left",-($(window).width()/2+1200));
		$("#focusindex"+nexti+" .focusr").css("left",-($(window).width()/2+900));
		$("#focusindex"+nexti+" .zhezhao").css("left",-($(window).width()/2+1400));
		$("#focusindex"+currentfocusi).show();
		$("#focusindex"+nexti).show();
		
		$("#focusindex"+currentfocusi+" .focusr").animate({left: $(window).width()/2},900,'easeinexpo');
		$("#focusindex"+currentfocusi+" .zhezhao").animate({left: $(window).width()/2},1400,'easeinexpo');
		$("#focusindex"+currentfocusi+" .focusl").animate({left: $(window).width()/2},1200,'easeinexpo',function(){
				$("#focusindex"+nexti+" .focusl").animate({left: -640},1200,'easeinoutcirc');
				$("#focusindex"+nexti+" .focusr").animate({left: -640},900,'easeinoutcirc');
				$("#focusindex"+nexti+" .zhezhao").animate({left: -710},1400,'easeinoutcirc');
				
				$("#focusindex"+currentfocusi).animate({left: $(window).width()},1800,'easeoutexpo');
				$("#focusindex"+nexti).animate({left: 0},1800,'easeoutexpo',function(){
						$("#focusindex"+currentfocusi).hide();
						currentfocusi = nexti;
						changeingfocus = false;
				});
		});
	}
}
function starfocustam(){
	timerfid = setinterval("timer_tickf()",8000);
}
function stopfocusam(){
	clearinterval(timerfid);
}
function timer_tickf() {
	changefocus(true);
}