function startup() {
	var elements = document.getElementsByName("hideIt");
	for (var i in elements) {
		elements[i].style.display = "none";
	}
}

function show(elementID) {
	var element = document.getElementById(elementID);
	
	if (element.style.display == "") {
		/* is visible --> hide */
		element.style.display = "none";
	} else {
		/* not visible --> show */
		element.style.display = "";
	}
}