function mFrameCheck(d) {// d:directory level
	if (self==top){
		a=self.location.href.split("/");l=a.length-1;
		s=new Array();n=0;
		for(i=l;i>l-(d+1);i--){s[n]=a[i];n++;}
		sr=s.reverse();p=sr.join('/');h="";
		for(i=0;i<d;i++)h+="../";
		if(!h)h="./";
		top.location.href=h+"?"+p;
	}
}