function toggleScreenshot(img) {
	document.getElementById('screenshot_image').src = img;
}
function getAbsoluteLeft(objectId) {
	//o = document.getElementById(objectId);
	o = objectId
	oLeft = o.offsetLeft;
	while(o.offsetParent != null) {
		oParent = o.offsetParent;
		oLeft += oParent.offsetLeft;
		o = oParent;
	}
	return oLeft;
}
function getAbsoluteTop(objectId) {
	//o = document.getElementById(objectId);
	o = objectId
	oTop = o.offsetTop;
	while(o.offsetParent != null) {
		oParent = o.offsetParent;
		oTop += oParent.offsetTop;
		o = oParent;
	}
	return oTop;
}