function deplie(id) {
	h = document.getElementById(id);
	visible = h.style.display;

	if (visible == 'none') {h.style.display='block';}
	else {h.style.display='none';}
	
	visible = h.style.display;
	}

function close_all() {
	divs=document.getElementsByTagName("div");
	for (i=0;i<divs.length;i++) {
		if (divs[i].id.substr(0, 5) == 'plus_') divs[i].style.display='none';
	}
}