function bannerBlock(){
	var div_obj = document.getElementsByTagName("div");
	var last_num = div_obj.length - 1;
	div_obj[last_num].style.display = "none";
	var table_obj = document.getElementsByTagName("table");
	if(div_obj[0].id != ""){
		table_obj[0].style.display = "none";
	}else{
		div_obj[0].style.display = "none";
	}
	//alert(div_obj[0].id);
}