function show_pop_up(){
	hide_pop_up2();
	document.getElementById('popup').style.display='block';
}
function hide_pop_up(){
	document.getElementById('popup').style.display='none';
}

function show_pop_up2(){
	hide_pop_up();
	document.getElementById('popup2').style.display='block';
}
function hide_pop_up2(){
	document.getElementById('popup2').style.display='none';
}