function show(element) {
	document.getElementById(element).style.display = 'block';		
}

function hide(element) {
	document.getElementById(element).style.display = 'none';	
}

function clearBox(element) {
	if(element.value==element.defaultValue) {
		element.value = '';	
	}
}

function resetBox(element) {
	if(element.value=='') {
		element.value = element.defaultValue;	
	}
}