/*REM单位换算方法 iphone6适配*/

function resizeRoot(){

       var Dpr = 1, uAgent = window.navigator.userAgent;

    var isIOS = uAgent.match(/iphone/i);

    var wWidth = (screen.width > 0) ? (window.innerWidth >= screen.width || window.innerWidth == 0) ? screen.width : window.innerWidth : window.innerWidth, wDpr, wFsize;

    if (window.devicePixelRatio) {

        wDpr = window.devicePixelRatio;

    } else {

        wDpr = isIOS ? wWidth > 818 ? 3 : wWidth > 480 ? 2 : 1 : 1;

    }

    if(isIOS) wWidth = screen.width;

    wFsize = wWidth > 1080 ? 144 : wWidth / 7.5;

    window.screenWidth_ = wWidth;

    document.getElementsByTagName('html')[0].dataset.dpr = wDpr;

    document.getElementsByTagName('html')[0].style.fontSize = wFsize + 'px';

}

//判断安卓手机浏览器低版本的用ready方法执行

function appsion(){

    uAgent = window.navigator.userAgent;

    var isIOS = uAgent.match(/iphone/i);

    if(navigator.appVersion.substring(navigator.appVersion.length-6)<537 && !isIOS){

        document.ready=function(){

            resizeRoot();

        }

    }else{

        resizeRoot();

    }

}

appsion();

//rem配置方法执行

var winWidth = 0;

var winHeight = 0;

function findDimensions() //函数：获取尺寸

{

//获取窗口宽度

if (window.innerWidth)

winWidth = window.innerWidth;

else if ((document.body) && (document.body.clientWidth))

winWidth = document.body.clientWidth;

//获取窗口高度

if (window.innerHeight)

winHeight = window.innerHeight;

else if ((document.body) && (document.body.clientHeight))

winHeight = document.body.clientHeight;

//通过深入Document内部对body进行检测，获取窗口大小

if (document.documentElement && document.documentElement.clientHeight && document.documentElement.clientWidth)

{

winHeight = document.documentElement.clientHeight;

winWidth = document.documentElement.clientWidth;

}

//结果输出至两个文本框

}

findDimensions();

//调用函数，获取数值

window.onresize=findDimensions;

function loadAddButton(id){

    // window.onload=function(){

         var d1=document.getElementById(id);

         var h1=d1.clientHeight+d1.scrollHeight;

         var h2=d1.offsetHeight+40;

         var wheight = winHeight;

         if(h2<wheight){

            // alert(wheight);

            // alert("wheight："+wheight);

            // alert("wheight："+wheight);

             document.getElementById(id).style.height=wheight+"px";

         }else {//alert("h2："+h2);

             document.getElementById(id).style.height=h2+"px";

         }

        //}

}

function loadAddlist(id,height){

     findDimensions();

     var wheight = winHeight - height;

     document.getElementById(id).style.height=wheight+"px";

}

function bodyheight(){

    findDimensions();

    var body = document.getElementsByTagName("body")[0];

    body.style.height=winHeight+"px";

}

function getBodyheight(){

    findDimensions();

    return winHeight;

}

jQuery(function(){

    bodyheight();

    addEvent(window, 'resize', function () {

        setTimeout(function(){

            bodyheight();

        },300);

    });

});

function addEvent(e, n, o){

    if(e.addEventListener){

         e.addEventListener(n, o,false);

    } else if(e.attachEvent){

        e.attachEvent('on' + n, o);

    }

}