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Standard dependant picklist behaviour

I create a page with a custom controller where call some standard Depedant picklist . I try in the following code  onchange="OliFrequency" :
<apex:inputField id="OliRevenue_Type" onchange="OliFrequency" value="{!OpportunityLineItem.Revenue_Type__c}"/>

<apex:inputField id="OliFrequency" value="{!OpportunityLineItem.Frequency__c}"/>

is there any simple way to have this standard behaviour working . 
<apex:inputField id="OliRevenue_Type" value="{!OpportunityLineItem.Revenue_Type__c}">
<apex:actionSupport event="onchange" rerender="OliFrequency" />
apex:inputField id="OliFrequency" value="{!OpportunityLineItem.Frequency__c}"/>

I think this should work.

It does not work. I reckon I have to replicate the standard behaviour in my controller .