1. State

                                                                     2. City

                                                                     3. Village

                                                                      in this object.

I have made  picklists for state, city and village . I want that whenever i select a state, city associated with this state got select. And also when i want that  whenever i select a city, Village associated with this city got select.If you have any solution please tell me.Thanks .

I have written code for that which is as follow:-

                                             For page

<apex:page controller="sampleCon">
<apex:form >
<apex:actionFunction name="Citysearch" action="{!getCities}" reRender="result" status="status1"/>
<apex:actionFunction name="Villagesearch" action="{!getVillages}" reRender="result" status="status2"/>

<apex:selectList value="{!State}" size="1" onclick="searchCity()" >
<apex:selectOptions value="{!items}" />
<apex:actionStatus startText="Searching..." stopText="Search Result" id="status1" >
</apex:actionstatus>
</apex:selectList>

<apex:selectList value="{!City}" size="1" onclick="searchVillage()">
<apex:selectOptions value="{!Cities}"/>
<apex:actionStatus starttext="searching..." stoptext="Search Complete"  id="status2" >
</apex:actionStatus>
</apex:selectList>

<apex:selectList value="{!Village}" size="1">
<apex:selectOptions value="{!Villages}"/>
</apex:selectList>

</apex:form>
<script>
     function searchCity(){
        // alert('hiiiiiiiiiii');
         getCities();
     }
     function searchVillage()
     {
        // alert('hello');
         getVillages();
     }
</script>
</apex:page>
                          For controller
public class sampleCon {
        String id;
        public StateCity__c State{get;set;}
        public StateCity__c City{get;set;}
        public StateCity__c Village{get;set;}
        
        public List<SelectOption> getItems() {
                    List<SelectOption> options = new List<SelectOption>();
                    options.add(new SelectOption('id','Rajasthan'));
                    options.add(new SelectOption('id','MP'));
                    return options;
                    }
        
        public List<SelectOption> getCities() {
                    id = ApexPages.currentPage().getParameters().get('id');
                    List<SelectOption> options = new List<SelectOption>();
                    options.add(new SelectOption('id','Ajmer'));
                    options.add(new SelectOption('id','Bhopal'));
                    return options;
                    }
        
        public List<SelectOption> getVillages() {
                    id = ApexPages.currentPage().getParameters().get('id');
                    List<SelectOption> options = new List<SelectOption>();
                    options.add(new SelectOption('id','Kishangarh'));
                    options.add(new SelectOption('id','Nimach'));
                    return options;
                    }               
}