function n_window(url) {
		        window.open(url,'','menubar=no,toolbar=no,directories=no,top=0,left=0,width=390,height=600');
}
function show(id)
{
			element = document.getElementById(id);
			element.style.display = 'block';
}
function hide(id)
{
			element = document.getElementById(id);
			element.style.display = 'none';
}
function switchv(id)
{
	element = document.getElementById(id);
	if (element.style.display == 'block') {
		element.style.display = 'none';
	} else {
		element.style.display = 'block';
	}
}