function popup(URL, w, h) {
	var newWidth = w;
	var newHeight = h;

	var newX = (screen.availWidth - newWidth) / 2;
	var newY = (screen.availHeight - newHeight) / 2;

	window.open(URL,"",'toolbar=0, location=0, directories=0, status=0, menubar=0, scrollbars=1, resizable=0, copyhistory=1, width='+newWidth+', height='+newHeight+', left='+newX+',top='+newY+'');
	
}

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

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;
  //var left = (c["at_position"] == "x") ? p.offsetWidth-10 : 0;
  
  for (; p; p = p.offsetParent)
  {
	top  += p.offsetTop;
	left += p.offsetLeft;
  }
	
  //left = left - 55;
  /* for correct display in safari */
  var navi = navigator.userAgent;
  if(navi.search(/Safari/)>=0){
		top = top - 3;		 
  }
  else{
		top = top - 1;  
  }
  left = left - 0;
  
	  
  c.style.position   = "absolute";
  c.style.top        = top +'px';
  c.style.left       = left+'px';
  c.style.visibility = "visible";  
  init(child);
}
	
// ----- Show -----
	
function at_show()
{
  var p = document.getElementById(this["at_parent"]);
  var c = document.getElementById(this["at_child" ]);
  
  at_show_aux(p.id, c.id);  
  clearTimeout(c["at_timeout"]);
}
	
// ----- Hide -----
	
function at_hide()
{
  var c = document.getElementById(this["at_child"]);
  //added time out for reseting object height for scrolling effect
  c["at_timeout"] = setTimeout("document.getElementById('"+c.id+"').style.visibility = 'hidden'; document.getElementById('"+c.id+"').style.height = ''", 333);
    
}
	
// ----- Click -----
	
function at_click()
{
  var p = document.getElementById(this["at_parent"]);
  var 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)
{
  var p = document.getElementById(parent);
  var 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;
  }
}
/* scrolling effect JS */
function doMove() {	
	if(foo.style.height!='100px'){	
		foo.style.height = parseInt(foo.style.height)+5+'px';		
		setTimeout(doMove,1);
	}
	if(foo.style.height=='100px'){
		document.getElementById('subs').style.display='';
	}
}
function init(id) {
	foo = document.getElementById(id); // get the "foo" object
	if((foo.style.height=='') || (foo.style.height==null)){
		foo.style.height = '0px';
		document.getElementById('subs').style.display='none';
	}
	if(foo.style.height=='100px'){
		document.getElementById('subs').style.display='';
	}
	if(foo.style.height!='100px'){
		doMove(); // start animating
	}	
}