$(document).ready(function(){

    $("#districtlist").load("" + prelink + "/" + "static/districtlist", {id : ($("#regionlist option:selected").val())}, function(data){

    });
	
	if($("#regionlist option:selected").val() > 0)
         $("#districtlist").removeAttr("disabled")
    else
        $("#districtlist").attr("disabled", "disabled") 

$("#regionlist").change(function(){
    
    
    $("#districtlist").load("" + prelink + "/" + "static/districtlist", {id : ($("#regionlist option:selected").val())}, function(data){

    });
    
    if($("#regionlist option:selected").val() > 0)
         $("#districtlist").removeAttr("disabled")
    else
        $("#districtlist").attr("disabled", "disabled") 

});

});