/* functions for sort-order-button */

	/* overwrite actual href with searchs parameter. */
	function renewSearch(value) {
		var params = gets();
		params["order"] = value;
		var url = document.URL.split(/\?/)[0] + "?";
		var started = false;
		for (para in params) {
			if (started) {
				url += "&";
			}
			url += para + "=" + params[para];
			started = true;
		}
		window.location.href = url;
	}
	
	/* list all get-parameters in an array */
	function gets() {
		out = new Object();
		// put parameters in an Array
		var parameters = document.URL.split(/\?/)
		if (parameters.length > 1) {
			parameters = parameters[1].split(/&/);
			// split them in var-name and value
			for (index in parameters) {
				var param = parameters[index].split(/=/);
				if (param[1] != "" && param[0] != "") {
					out[param[0]] = param[1];
				}
			}
		}
		return out;
	}