var istouch = modernizr.touchevents,
	ismobile = false,
	w_width = $(window).width(),
	w_height = $(window).height();
var _mousemove;
var _click;
var _mousedown;
var _mouseup;
if (modernizr.touchevents) {
    _mousemove = "touchmove";
    _click = "touchend";
    _mousedown = "touchstart";
    _mouseup = "touchend";
} else {
    _mousemove = "mousemove";
    _click = "click";
    _mousedown = "mousedown";
    _mouseup = "mouseup";
};


function pagebox() {
    w_width = $(window).width();
    w_height = $(window).height();
    if (w_width <= 769) {
        ismobile = true;
    } else if (w_width > 769) {
        ismobile = false;
    };
};
pagebox();
$(window).resize(function () {
    pagebox();
});

function setimgmax(img, imgw, imgh) {
    var bheight=0,
        $banner = $('.banner'),
        $bannerpic = $banner.find(".pic"),
        $bannerimg = $banner.find(".pimg"),
        bannersider=$(".bannerbox");
    var coe = imgh / imgw;
    img.css({ height: w_width*coe, width: w_width, top: 0 });
    $banner.css({ height:w_width*coe});
    $bannerpic.css({ height: w_width*coe});
};



$(function(){
		var bheight=0,
		$banner = $('.banner'),
		$bannerpic = $banner.find(".pic"),
		$bannerimg = $banner.find(".pimg"),
	 	bannersider=$(".bannerbox");
	function initbox() {
        if(!ismobile){
            setimgmax($bannerimg, 2000,595);
			bannersider.flexslider({
				slideshowspeed: 6000,
				animationspeed: 1200,
				directionnav:true,
                pauseonaction: false,
                animation: "slide",
                keyboardnav: true,
			});
        }else{
            setimgmax($bannerimg, 480,380);
			bannersider.flexslider({
				animation: "slide",
				slideshowspeed: 6000,
				animationspeed: 1200,
				directionnav:true,
                pauseonaction: false,
			});
        }
    };
    initbox();
    $(window).resize(function () {
        initbox();
    });
});