function getObject(obj) {
	var theObj
	if (document.layers) {
		if (typeof obj == 'string') {
			return document.layers[obj]
		} else {
			return obj
		}
	}
	if (document.all) {
		if (typeof obj == 'string') {
			return document.all(obj).style
		} else {
			return obj.style
		}
	}
	if (document.getElementById) {
		if (typeof obj == 'string') {
			return document.getElementById(obj).style
		} else {
			return obj.style
		}
	}
	return null;
}


function showd(obj) {
	var theObj = getObject(obj)
	theObj.display = 'block'
}

function hided(obj) {
	var theObj = getObject(obj)
	theObj.display = 'none'
}

function showv(obj) {
	var theObj = getObject(obj)
	theObj.visibility = ''
}

function hidev(obj) {
	var theObj = getObject(obj)
	theObj.visibility = 'hidden'
}