function ItemSelected (sibling) {
	var theSibling = document.getElementById(sibling);
	theSibling.checked = false;
	}
	
function hideRange() {
	for(var i=0;i < arguments.length;i++) {
		var currentControl = document.getElementById(arguments[i]);
		currentControl.style.visibility = "hidden";
		}
	isUnknownMajor();
	}
	
function showRange() {
	for(var i=0;i < arguments.length;i++) {
		var currentControl = document.getElementById(arguments[i]);
		currentControl.style.visibility = "visible";
		}
	isUnknownMajor();
	}

function enableRange() {
	for (var i=0;i<arguments.length;i++) {
		setValidatorEnableState(arguments[i],true);
		}
}

function disableRange() {
	for (var i=0;i<arguments.length;i++) {
		setValidatorEnableState(arguments[i],false);
	}
}

function isUnknownMajor() {
	var majorList = document.getElementById("majorList")
	var majorBox = document.getElementById("majorBoxSection");
	if (majorList.selectedIndex == 8) 
		majorBox.style.visibility = "visible";
	else
		majorBox.style.visibility = "hidden";
	}