function showObject(object) {
	var obj = document.getElementById(object);
	obj.style.visibility = 'visible';
}

function hideObject(object) {
	var obj = document.getElementById(object);
	obj.style.visibility = 'hidden';
}

function getWidth(obj) {
  return obj.offsetWidth;
}

function getLeft(obj) {
	var curleft = 0;
	if (obj.offsetParent) {
		while (obj.offsetParent) {
			if(obj != "[object HTMLDivElement]") {
				curleft += obj.offsetLeft;
			}
			obj = obj.offsetParent;
		}
	}
	else if(obj.x) {
		curleft += obj.x;
	}
	return curleft;
}

function getTop(obj) {
	var curtop = 0;
	if (obj.offsetParent) {
		while (obj.offsetParent) {
			if(obj != "[object HTMLDivElement]") {
				curtop += obj.offsetTop;
			}
			obj = obj.offsetParent;
		}
	}
 	else if(obj.y) {
		curtop += obj.y;
	}
	curtop -= 1;
	return curtop;
}

function getHeight(obj) {
  return obj.offsetHeight;
}