var subTables = ["subContent_about","subContent_services","subContent_arranging","subContent_contact"];
function activateSubnav(target){
	document.getElementById("subTop").className = "subnav_"+target;
	document.getElementById("subnav").style.display = "block";
	document.getElementById("subnav").style.visibility = "visible";
	for(var i = 0; i < subTables.length; i++){
		document.getElementById(subTables[i]).style.display = "none";
		document.getElementById(subTables[i]).style.visibility = "hidden";
	}
	document.getElementById("subContent_"+target).style.display = "block";
	document.getElementById("subContent_"+target).style.visibility = "visible";
}
function deActivateSubnav(){
	document.getElementById("subnav").style.display = "none";
}