// JavaScript Document
function getStyleObject(objectId) {
	if(document.getElementById && document.getElementById(objectId)) {
		/* W3C DOM*/
		return document.getElementById(objectId).style;
	} else if (document.all && document.all(objectId)) {
		/* MSIE 4 DOM*/
		return document.all(objectId).style;
	} else if (document.layers && document.layers[objectId]) {
		/* NN 4 DOM.. note: this won't find nested layers*/
		return document.layers[objectId];
	} else {
		return false;
	}
}
function setRelLayerPos(objectId,xOffset,yOffset,e) {
    // get the mouse x & y coordinate relative to the dosument; not the screen
	// reposition the layer (objectId) to these coordinates with xOffset,yOffset
	var posx = 0;
	var posy = 0;
	if (!e) var e = window.event;
	if (e.pageX || e.pageY) {
		posx = e.pageX;
		posy = e.pageY;
	} else if (e.clientX || e.clientY) {
		posx = e.clientX + document.body.scrollLeft;
		posy = e.clientY + document.body.scrollTop;
	}
	var layer = getStyleObject(objectId);
	if(layer) {
		layer.left = (posx + xOffset) + "px";
		layer.top = (posy + yOffset) + "px";
	} else {
		return false;
	}
}
function showItem(itemId, xOffset, yOffset, e) {
	setRelLayerPos(itemId,xOffset,yOffset,e);
	document.getElementById(itemId).style.visibility = "visible";
	return true;
}

function hideItem(itemId) {
	document.getElementById(itemId).style.visibility = "hidden";
	return true;
}
function focusWindow() {
	window.focus();
}