// USAGE SYNTAX
// register('unload', 'myfunc();');
// unregister('unload', 'myfunc();');
// execute_registered('unload');
var registered_routines = new Array();
function find_registered_object (obj) {
	var obj_index = -1;
	for ( var i = 0; i < registered_routines.length; i++ )
		if ( registered_routines[i][0] == obj )
			return i;

	return obj_index;
}
function register (obj, func) {
	var obj_index = find_registered_object (obj);

	if ( obj_index == -1 ) {
		registered_routines[registered_routines.length] = new Array();
		obj_index = registered_routines.length - 1;
		registered_routines[obj_index][0] = obj;
	}

	registered_routines[obj_index][registered_routines[obj_index].length] = func;

	return true;
}
function unregister (obj, func) {
	var obj_index = find_registered_object (obj);
	var temp_array = new Array();

	if ( obj_index == -1 ) return true;

	if ( ! ( func == null || func.length <= 0 ) )
		for ( var i = 0; i < registered_routines[obj_index].length; i++ )
			if ( registered_routines[obj_index][i] != func )
				temp_array[temp_array.length] = registered_routines[obj_index][i];

	registered_routines[obj_index] = temp_array;

	return true;
}
function execute_registered (obj) {
	var obj_index = find_registered_object (obj);

	if ( obj_index == -1 ) return true;

	for ( var i = 1; i < registered_routines[obj_index].length; i++ )
		if ( ! eval(registered_routines[obj_index][i]) )
			return false;

	return true;
}
function pcon (offer_id, offer_instance_id, offer_placement) {
	url = 'http:\/\/registration.musthavefreegifts.com/index.cfm/track/offer/offer_id/' + offer_id + '/offer_instance_id/' + offer_instance_id + '/offer_placement/' + offer_placement + '/refresh/54352578/';
	win = window.open(unescape(url));
	win.blur();
}
function fcnPopUp(location, windowname, height, width, resize, location2, status) {
   	winbowObject = window.open(location, windowname, 'toolbar=yes,alwaysRaised=yes,resizable='+resize+',location='+location2+',directories=no,scrollbars=yes,menubars=no,status='+status+',height='+height+',width='+width+',screenX=100,screenY=100,top=100,left=100');
}
var popUpWin=0;
function popUpWindow(URLStr, title, left, top, width, height)
{
  if(popUpWin)
  {
	if(!popUpWin.closed) popUpWin.close();
  }
  popUpWin = open(URLStr, title, 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,copyhistory=yes,width='+width+',height='+height+',left='+left+', top='+top+',screenX='+left+',screenY='+top+'');
}
register('unload', 'unregister(\'page_unload\', \'\')');