How to chgange Activity pointer view default value

In crm 4.0, there is no way to change the activitiy pointer defaullt view, thats way I search the crm source pages and i find the way of change default view. open inetpub-->wwwroot-->Workplace-->home_activities.aspx; and paste the script below, under the onload blok like the picture 3 crmTypeSelector.DataValue="phonecall"; OnActivityTypeChange(crmTypeSelector);