function flagError (elementId) {
	var element = document.getElementById(elementId);
	if(element) {
		element.style.visibility = 'visible';
	}
}

function flagReset () {
	var errorBoxes = document.getElementsByTagName('span');
	for(var i = 0; i < errorBoxes.length; i++) {
		var str = new String(errorBoxes[i].className);
		if(str.indexOf('error_box') >= 0) {
			errorBoxes[i].style.visibility = 'hidden';
		}
	}
}

function signalError(msg) {
	if(msg) {
		alert(msg);

	} else {
		alert("There was an error with your submission please revise it and try again");
	}
}