function showSubMenu(target){
	if(target=="member"){
		document.getElementById("subMenu_member").style.display = "";
		document.getElementById("subMenu_event").style.display = "none";
		document.getElementById("subMenu_report").style.display = "none";
	}else if(target=="event"){
		document.getElementById("subMenu_member").style.display = "none";
		document.getElementById("subMenu_event").style.display = "";
		document.getElementById("subMenu_report").style.display = "none";
	}else if(target=="report"){
		document.getElementById("subMenu_member").style.display = "none";
		document.getElementById("subMenu_event").style.display = "none";
		document.getElementById("subMenu_report").style.display = "";
	}else{
		document.getElementById("subMenu_event").style.display = "none";
		document.getElementById("subMenu_member").style.display = "none";
	}
	
}
addEvent(document,"click",function(){
	document.getElementById("subMenu_report").style.display = "none";
	document.getElementById("subMenu_event").style.display = "none";
	document.getElementById("subMenu_member").style.display = "none";
});

function addEvent(elment,event,func){
	try		{elment.addEventListener(event,func,false);}
	catch(e){elment.attachEvent("on"+event,func);}
}