function _resize()
{
    var info_box=document.getElementById("ad");
    
    if (info_box.style.visibility == "hidden") return;
    
    info_box.style.left=(document.documentElement.clientWidth-204)+"px";
    info_box.style.top=(document.documentElement.clientHeight-170)+"px";
}
Date.prototype.Format=function()
{
    var weeks=[' 星期日', ' 星期一', ' 星期二', ' 星期三', ' 星期四', ' 星期五', ' 星期六'];
    var ret=this.getFullYear()+'-'+String(this.getMonth()+1)+'-'+this.getDate()+' '+(this.getHours()<10?'0'+this.getHours():this.getHours())+':'+(this.getMinutes()<10?'0'+this.getMinutes():this.getMinutes())+':'+(this.getSeconds()<10?'0'+this.getSeconds():this.getSeconds())+weeks[this.getDay()];
    return ret;
}