function popupWindow(url) {
	window.open(url,'popupWindow','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=yes,copyhistory=no,width=100,height=100,screenX=150,screenY=150,top=150,left=150')
}

function show_currency(){
	document.getElementById('curr_div').style.visibility='visible';
	document.getElementById('curr_div').style.display='block';
	document.getElementById('curr_a').className='curr_link_active';
	document.getElementById('curr_span').className='yes_active';
}

function hidden_currency(){
	document.getElementById('curr_div').style.visibility='hidden';
	document.getElementById('curr_div').style.display='none';
	document.getElementById('curr_a').className='curr_link';
	document.getElementById('curr_span').className='no_active';
}