function getStyle(obj,attr){    if(obj.currentStyle)    {        return obj.currentStyle[attr];    }    else    {        return getComputedStyle(obj,false)[attr];    }}// var timer=null;function startMove(obj,attr,iTarget){    clearInterval(obj.timer);    obj.timer=setInterval(function(){        // var iCur=parseInt(getStyle(obj,attr));        var iCur=0;        if(attr=='opacity')        {            iCur=parseInt(parseFloat(getStyle(obj,attr))*100);        }        else        {            iCur=parseInt(getStyle(obj,attr));        }        var iSpeed=(iTarget-iCur)/8;        iSpeed=iSpeed>0?Math.ceil(iSpeed):Math.floor(iSpeed);        if(iCur==iTarget){            clearInterval(obj.timer);        }        else{            if(attr=='opacity')            {                obj.style.opacity=(iCur+iSpeed)/100;                obj.style.filter='alpha(opacity:'+(iCur+iSpeed)+')';            }            else            {                obj.style[attr]=iCur+iSpeed+'px';            }        }    },30);}