if (document.getElementById){ 
	document.write('<style type="text/css">\n')
	document.write('.submenu{display: none;}\n')
	document.write('</style>\n')
}

function navigation_menu(layer){
	
	if(document.getElementById){
	var el = document.getElementById(layer);
	var ar = $("#navigation_menu #"+layer);
		if(el.style.display != "block"){
    		$(".submenu").css("display","none");
   			$("#"+layer).css("display","block");
			el.style.display = "block";
		}else{
			el.style.display = "none";
		}
	}
}

function color_this(obj, is_on) {
	if (is_on == 1) {
		obj.style.color = "#d83806";
	} else {
		obj.style.color = "#000000";
	}
}