Hi I have created a standard report and created a vf page filter. when I am combining both, with pagerefrence it is redirecting to the stanrd report.But it should get filtered with in the Vf page. can any one pls help me urgent.

MY Controller:
public class Newfcntrl{
    public string locid{get;set;}
    public map<Id,String> locmap= new map<Id,String>();
   
    public List<SelectOption> getAvailableLocations() {
        List<SelectOption> Opts = new List<SelectOption>();
        for (Location__c  l : [Select Id, Name From Location__c limit 1000]){
            Opts.add(new SelectOption(l.Id, l.Name));
            locmap.put(l.Id, l.Name);
        }
        return Opts;
    }

    public pagereference showrep(){
        pagereference p = new pagereference('/00O90000007mGeE?pv0='+ locmap.get(locid));
        system.debug('p-----'+p);
        p.setRedirect(true);
        return p;
    }

}


My page:

<apex:page controller="Newfcntrl" sidebar="false" showHeader="false">
<apex:form id="theForm">
<apex:actionFunction name="testAF" action="{!showrep}" rerender="panid"/>
Location :<apex:selectList value="{!locid}" multiselect="false" size="1" onChange="testAF();">
            <apex:selectOptions value="{!AvailableLocations}" />
            </apex:selectList>
            <apex:outputPanel id="panid">
           <analytics:reportChart reportId="00O90000007mGeE"></analytics:reportChart>
           </apex:outputPanel>
</apex:form>
</apex:page>