// JavaScript Document
var FLAG=0;

function show_email(elm){
	if(FLAG==1){
		hbox(elm);
	}
	else
	{
		sbox(elm);
	}
}

function hbox(elm){
	 var a = document.getElementById(elm);
	 a.style.display='none';
	 FLAG=0;
}

function sbox(elm){
	 var a = document.getElementById(elm);
	 a.style.display='block';
	 FLAG=1;
}