function hide_subMenu(action){
	for(i = 2 ; i < 7 ; i++){
		document.getElementById("subMenu_"+i).style.display = "none";
		document.getElementById("menu_"+i).style.color = "#556421";
		document.getElementById("menu_"+i).style.background = "none";
	}
	if(action != "all"){
			for(i = 2 ; i < 7 ; i++){
				document.getElementById("menu_"+i).style.color = "#556421";
				document.getElementById("menu_"+i).style.background = "none";
			}
			document.getElementById(action).style.color = "#556421";
			//document.getElementById("link_"+action).style.color = "#556421";
			document.getElementById(action).style.background = "none";
	}
}
function show_subMenu(parent, menu_id){
		for(i = 2 ; i <= 6 ; i++){
				document.getElementById("menu_"+i).style.color = "#556421";
				document.getElementById("menu_"+i).style.background = "none";
		}
		document.getElementById(parent).style.color = "#FFF";
		//document.getElementById("link_"+parent).style.color = "#FFF";
		document.getElementById(parent).style.background = "#556421 url(images/arrow_up_liteNatureGreen.png) no-repeat bottom center";
		document.getElementById(menu_id).style.display = "";
}