//////////// (begin) pop-up description  ///////////////////
var posx = 0;
var posy = 0;
var flag = 0;
var nav = (document.layers); 
var iex = (document.all);
if (nav) document.captureEvents(Event.MOUSEMOVE);
document.onmousemove = get_mouse;

function pop(msg,bak) 
{ 
  flag = 1;
  var content = msg;
  document.getElementById("topdeck").innerHTML = content; 
  document.getElementById("topdeck").style.display = "block"; 
}
function show_div(div_name) 
{document.getElementById(div_name).style.display = "block"; }
function hide_div(div_name) 
{document.getElementById(div_name).style.display = "none"; }

function get_mouse(e) 
{ 
if(flag == 1){
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+document.documentElement.scrollLeft;
	posy=e.clientY+document.body.scrollTop
		+ document.documentElement.scrollTop;
}
// posx and posy contain the mouse position relative to the document
// Do something with this information	
document.getElementById("topdeck").style.left=posx;
document.getElementById("topdeck").style.top=posy+20;    
}
} 
function kill() 
{ 
  document.getElementById("topdeck").style.display = "none"; 
  flag = 0;
}
//////////// (end) pop-up description ///////////////////

function toggle(url_close_img, url_open_img, img_id, div_id)
{
	if (document.getElementById(div_id) )
	{
		if (document.getElementById(div_id).style.display == 'none')
		{
			document.getElementById(div_id).style.display = 'block';
			if (img_id != '' && document.getElementById(img_id))
			{
				document.getElementById(img_id).src = url_open_img;
			}
		}
		else
		{
			document.getElementById(div_id).style.display = 'none';
			if (img_id != '' && document.getElementById(img_id))
			{			
				document.getElementById(img_id).src = url_close_img;
			}
		}
	}
}