// JavaScript Document

	var queryString = window.top.location.search.substring(1);

	function getParameter ( queryString, parameterName ) {
		var parameterName = parameterName + "=";
		if ( queryString.length > 0 ) {
			begin = queryString.indexOf ( parameterName );
			if ( begin != -1 ) {
				begin += parameterName.length;
				end = queryString.indexOf ( "&" , begin );
				if ( end == -1 ) {
					end = queryString.length
				}
				return unescape ( queryString.substring ( begin, end ) );
			}
			return "null";
		}
	}