简单animate方法的封装

function animate(ele,json,fn){    clearInterval(ele.timer);    ele.timer = setInterval(function () {        var bool = true;        console.log(1);        for(var k in json){            if(k == "opacity"){                var leader = getStyle(ele,k)*100||0;                var step = (json[k]*100-leader)/10;                step = step>0?Math.ceil(step):Math.floor(step);

ele.style[k] = (leader+step)/100;　　　　　　　　//兼容IE678                ele.style.filter = "alpha(opacity = "+(leader+step)+")"                console.log(getStyle(ele, k));                if( getStyle(ele,k) != json[k] ){                    bool = false;                }

}else if(k=="z-index"){                ele.style.zIndex=json[k];            }else{                var leader = parseInt(getStyle(ele,k))||0;                var step = (json[k]-leader)/10;                step = step>0?Math.ceil(step):Math.floor(step);

ele.style[k] = step+leader+"px";

if(parseInt(getStyle(ele,k))!=json[k]){                    bool = false;                }            }        }        if(bool){            clearInterval(ele.timer);            if(fn){                fn();            }        }    },60)}