$.fn.showCity=function(state){
         $.getJSON("http://ambusinessdirectory.com/search.php",{change_form:state,param:'json'}, function(city)
        	{
	            if(city!=null)
				{
					 $('#city_searche').empty();
					 var html = '<option value="0">- Select City -</option>';
					 for(i=0;i<city.length;i++)
					 {
					 	html += '<option>' + city[i]['city'] + '</option>'
					 }
	                 $('#city_searche').append(html);
	                 $('#city_searche').removeAttr("disabled");
				}
				else
				{
					  $('#city_searche').empty();
                      $('#city_searche').append('<option>- Select State -</option>');
                      $('#city_searche').attr("disabled", "disabled");
				}
        	});
      
    }