function unhide(i) {
document.body.children[i].hidden = false
}
function toggle(id) {
document.getElementById(id).hidden = !document.getElementById(id).hidden
}
function hide(i) {
document.body.children[i].hidden = true
}
function hide_all() {
for (i = 1; i < document.body.children.length-1; i++) {
hide(i)
}
}
function reset_color_style() {
document.getElementById("color_style").innerHTML = ".module[title=Colors] {\n --module-bg: silver;\n --module-border-size: 1px;\n --module-border: solid black;\n}"
}
function add_button(id, i) {
document.getElementById(id).innerHTML += "\n"
}
function reset_buttons(id, i) {
document.getElementById(id).innerHTML = "