// from http://blog.stchur.com/2006/10/12/fixing-ies-attachevent-failures/
var xb =
{
   evtHash: [],

   ieGetUniqueID: function(_elem)
   {
	  if (_elem === window) { return 'theWindow'; }
	  else if (_elem === document) { return 'theDocument'; }
	  else { return _elem.uniqueID; }
   },

   addEvent: function(_elem, _evtName, _fn, _useCapture)
   {
	  if (typeof _elem.addEventListener != 'undefined')
	  { _elem.addEventListener(_evtName, _fn, _useCapture); }
	  else if (typeof _elem.attachEvent != 'undefined')
	  {
		 var key = '{FNKEY::obj_' + xb.ieGetUniqueID(_elem) +
			   '::evt_' + _evtName + '::fn_' + _fn + '}';
		 var f = xb.evtHash[key];
		 if (typeof f != 'undefined')
			{ return; }

		 f = function()
		 {
			_fn.call(_elem);
		 };

		 xb.evtHash[key] = f;
		 _elem.attachEvent('on' + _evtName, f);

		 // attach unload event to the window to clean up possibly IE memory leaks
		 window.attachEvent('onunload', function()
		 {
			_elem.detachEvent('on' + _evtName, f);
		 });

		 key = null;
		 //f = null;   /* DON'T null this out, or we won't be able to detach it */
	  }
	  else
		 { _elem['on' + _evtName] = _fn; }
   },

   removeEvent: function(_elem, _evtName, _fn, _useCapture)
   {
	  if (typeof _elem.removeEventListener != 'undefined')
		 { _elem.removeEventListener(_evtName, _fn, _useCapture); }
	  else if (typeof _elem.detachEvent != 'undefined')
	  {
		 var key = '{FNKEY::obj_' + xb.ieGetUniqueID(_elem) +
			   '::evt' + _evtName + '::fn_' + _fn + '}';
		 var f = xb.evtHash[key];
		 if (typeof f != 'undefined')
		 {
			_elem.detachEvent('on' + _evtName, f);
			delete xb.evtHash[key];
		 }

		 key = null;
		 //f = null;   /* DON'T null this out, or we won't be able to detach it */
	  }
   }
};

function Pop(page) {
	var centerWidth = ((window.outerWidth || document.documentElement.clientWidth) - 400) / 2;
	var centerHeight = ((window.outerHeight || document.documentElement.clientHeight) - 220) / 2;
	w = window.open('/small/' + page + '.aspx',
		'pop', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=400,height=220,left='
		+ (centerWidth + (window.screenX || window.screenLeft)) + ',top=' + (centerHeight + (window.screenY || window.screenTop) - 50));
	w.focus();
}
function priceClick(arg) {
	for (var i = 0; i < options.length; ++i) {
		if (this == options[i]) {
			document.getElementById("price").innerHTML = prices[i].innerHTML;
			break;
		}
	}
}