function Disappear(id) {
	var e = document.getElementById(id);
	e.parentNode.removeChild(e);
}
function ToggleVisibility(id) {
	var e = document.getElementById(id);
	if(e.style.display == 'block')
		e.style.display = 'none';
	else
		e.style.display = 'block';
}
function GiveFocus(id) {
	var e = document.getElementById(id);
	e.focus();
	e.select();
}
function ChangeURL(url) {
	window.location.href = url;
}
function ToggleArrow(id) {
	var e = document.getElementById(id);
	if (e.className == 'arrow-closed') {
		e.className = 'arrow-open';
	}
	else {
		e.className = 'arrow-closed';
	}
}
function ClearBox(e) {
	if (e.defaultValue==e.value) e.value = "";
}