function rp(x){x=x+"";var i=0,a=new Array(),v="",pos=x.length;
	if(pos<=3)return x;while(pos>0)
	{
		i++;pos-=3;if(pos>0)s=".";
		a[i]=s+x.substring(pos,pos+3);s="";
	}
	for(i;i>0;i--)v+=a[i];return v;
}