var Length = document.documentElement.clientWidth;
var baseWidth = Length <= 1024 ? Length : 1024 < Length ? 750 : '';
document.documentElement.style.fontSize = baseWidth / 750 * 100 + 'px';


Date.prototype.Format = function (fmt) { //author: meizz
    var o = {
        "M+": this.getMonth() + 1, //月份
        "d+": this.getDate(), //日
        "h+": this.getHours(), //小时
        "m+": this.getMinutes(), //分
        "s+": this.getSeconds(), //秒
        "q+": Math.floor((this.getMonth() + 3) / 3), //季度
        "S": this.getMilliseconds() //毫秒
    };
    if (/(y+)/.test(fmt)) fmt = fmt.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));
    for (var k in o)
        if (new RegExp("(" + k + ")").test(fmt)) fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
    return fmt;
}

//回退
window.onload  =  function(){
    var $back = document.getElementsByClassName('back')[0];
    if($back){
        $back.onclick=function(){
            window.history.back()
        }
    }

}

// function ajaxFun(url,data) {
//
// }