function ClearValue(box_id) {
	switch(document.getElementById(box_id).value) {
		case "username":
			document.getElementById(box_id).value = "";
			break;
		case "password":
			document.getElementById(box_id).value = "";
			break;
	}
}
function RestoreValue(box_id) {
	if(document.getElementById(box_id).value == "") {
		switch(box_id) {
			case "txt_arai_user":
				document.getElementById(box_id).value = "username";
				break;
			case "txt_ars_user":
				document.getElementById(box_id).value = "username";
				break;
			case "txt_arai_pwd":
				document.getElementById(box_id).value = "password";
				break;
			case "txt_ars_pwd":
				document.getElementById(box_id).value = "password";
				break;
		}
	}
}

function SwitchMenu(obj){

	var el = document.getElementById(obj);
	var ar = $('.sub_menu');
	if(el.style.display != "block") {
		$('.sub_menu').css("display","none");
		el.style.display = "block";
	} else {
		el.style.display = "none";
	}
}

function closeAllMenu(){

	$('.sub_menu').css("display","none");
}