function switchall(){
	var elements = document.getElementsByTagName('tr');
	for (i = 0; i < elements.length; i++) {
        att = elements[i].getAttribute("class");
        if ( att == 'h_only') {
			if (document.getElementById('daytheme').checked) elements[i].style.display = 'none';
			else elements[i].style.display = '';
		}
	}
}
	

function show_angle1() {
document.getElementById("div61").style.display='block';
document.getElementById("div71").style.display='block';
document.getElementById("div61").style.visibility='visible';
document.getElementById("div71").style.visibility='visible';
}
function hide_angle1() {
document.getElementById("div61").style.display='none';
document.getElementById("div71").style.display='none';
document.getElementById("div61").style.visibility='hidden';
document.getElementById("div71").style.visibility='hidden';
}

function show_angle2() {
document.getElementById("div62").style.display='block';
document.getElementById("div72").style.display='block';
document.getElementById("div62").style.visibility='visible';
document.getElementById("div72").style.visibility='visible';
}
function hide_angle2() {
document.getElementById("div62").style.display='none';
document.getElementById("div72").style.display='none';
document.getElementById("div62").style.visibility='hidden';
document.getElementById("div72").style.visibility='hidden';
}

function show_angle3() {
document.getElementById("div63").style.display='block';
document.getElementById("div73").style.display='block';
document.getElementById("div63").style.visibility='visible';
document.getElementById("div73").style.visibility='visible';
}
function hide_angle3() {
document.getElementById("div63").style.display='none';
document.getElementById("div73").style.display='none';
document.getElementById("div63").style.visibility='hidden';
document.getElementById("div73").style.visibility='hidden';
}

function show_angle4() {
document.getElementById("div64").style.display='block';
document.getElementById("div74").style.display='block';
document.getElementById("div64").style.visibility='visible';
document.getElementById("div74").style.visibility='visible';
}
function hide_angle4() {
document.getElementById("div64").style.display='none';
document.getElementById("div74").style.display='none';
document.getElementById("div64").style.visibility='hidden';
document.getElementById("div74").style.visibility='hidden';
}
function show_angle5() {
document.getElementById("div65").style.display='block';
document.getElementById("div75").style.display='block';
document.getElementById("div65").style.visibility='visible';
document.getElementById("div75").style.visibility='visible';
}
function hide_angle5() {
document.getElementById("div65").style.display='none';
document.getElementById("div75").style.display='none';
document.getElementById("div65").style.visibility='hidden';
document.getElementById("div75").style.visibility='hidden';
}
function show_angle6() {
document.getElementById("div66").style.display='block';
document.getElementById("div76").style.display='block';
document.getElementById("div66").style.visibility='visible';
document.getElementById("div76").style.visibility='visible';
}
function hide_angle6() {
document.getElementById("div66").style.display='none';
document.getElementById("div76").style.display='none';
document.getElementById("div66").style.visibility='hidden';
document.getElementById("div76").style.visibility='hidden';
}
function show_angle7() {
document.getElementById("div67").style.display='block';
document.getElementById("div77").style.display='block';
document.getElementById("div67").style.visibility='visible';
document.getElementById("div77").style.visibility='visible';
}
function hide_angle7() {
document.getElementById("div67").style.display='none';
document.getElementById("div77").style.display='none';
document.getElementById("div67").style.visibility='hidden';
document.getElementById("div77").style.visibility='hidden';
}