Dashcode: changing parameter of datasource does not work in Chrome

Question

Hello,

If I run the following code in runtime:

var scheduleFromTo = dashcode.getDataSource("scheduleFromTo");
scheduleFromTo.setValueForKeyPath(102, "parameters.fromStationNumber");
scheduleFromTo.setValueForKeyPath(103, "parameters.toStationNumber");

it works as expected in Safari, Firefox, Opera and even IE7, but not in Google Chrome! This code actually changes datasource URL's parameters. So it is impossible to change these params in Chrome. How do I can change this code to make it work in Google Chrome? Or how to change datasource's URL parameters in other way?