function show() {
var region_list=document.getElementById("region_list")

		if (region_list.options[region_list.selectedIndex].value == 'US'){
			document.getElementById('hideme').style.visibility='visible';
			return true;
		}
		else{
			document.getElementById('hideme').style.visibility='hidden';
        	return true;
		}
}

function hide() {
			document.getElementById('hideme').style.visibility='hidden';
        	return true;
}