function check_frame_page(querystr){

	regexp_frame = /^(\/)?frame\.neo/;

	if(querystr!=""){

		if(!regexp_frame.test(top.location.pathname))
			top.location.href = "/frame.neo?startat="+querystr;

	} else {

		regexp_index = /^(\/)?index\.neo/;

		if((regexp_frame.test(top.location.pathname))&&(regexp_index.test(window.location.pathname)))
			top.location.href = window.location;

	}

}