function at_display(x) {
	win = window.open();
	for (var i in x) win.document.write(i+' = '+x[i]+'<br>');
}


function at_show_aux(parent, child) {
	var p = document.getElementById(parent);
	var c = document.getElementById(child);

	var top  = (c["at_position"] == "y") ? p.offsetHeight+2 : 0;
	var left = (c["at_position"] == "x") ? p.offsetWidth +2 : 0;

	for (; p; p = p.offsetParent) {
		top  += p.offsetTop;
		left += p.offsetLeft;
	}

	c.style.position   = "absolute";
	c.style.top        = top +'px';
	c.style.left       = left+'px';
	c.style.visibility = "visible";
}


function at_show() {
	p = document.getElementById(this["at_parent"]);
	c = document.getElementById(this["at_child" ]);

	at_show_aux(p.id, c.id);

	clearTimeout(c["at_timeout"]);
}


function at_hide() {
	c = document.getElementById(this["at_child"]);
	c["at_timeout"] = setTimeout("document.getElementById('"+c.id+"').style.visibility = 'hidden'", 333);
}


function at_click() {
	p = document.getElementById(this["at_parent"]);
	c = document.getElementById(this["at_child" ]);

	if (c.style.visibility != "visible") at_show_aux(p.id, c.id);
	else c.style.visibility = "hidden";

	return false;
}

// ----- Attach -----

// PARAMETERS:
// parent   - id of visible html element
// child    - id of invisible html element that will be dropdowned
// showtype - "click" = you should click the parent to show/hide the child
//            "hover" = you should place the mouse over the parent to show
//                      the child
// position - "x" = the child is displayed to the right of the parent
//            "y" = the child is displayed below the parent
// cursor   - Omit to use default cursor or check any CSS manual for possible
//            values of this field

function at_attach(parent, child, showtype, position, cursor) {
	p = document.getElementById(parent);
	c = document.getElementById(child);

	p["at_parent"]     = p.id;
	c["at_parent"]     = p.id;
	p["at_child"]      = c.id;
	c["at_child"]      = c.id;
	p["at_position"]   = position;
	c["at_position"]   = position;

	c.style.position   = "absolute";
	c.style.visibility = "hidden";

	//if (cursor != undefined) p.style.cursor = cursor;

	switch (showtype) {
		case "click":
			p.onclick     = at_click;
			p.onmouseout  = at_hide;
			c.onmouseover = at_show;
			c.onmouseout  = at_hide;
			break;
		case "hover":
			p.onmouseover = at_show;
			p.onmouseout  = at_hide;
			c.onmouseover = at_show;
			c.onmouseout  = at_hide;
			break;
	}
}