select 옵션값 새로고침해도 고정시키는 법 채택완료

select 옵션값 새로고침 해도 고정시키는 법을 알려주세요

city 와 county 중에

city 는 새로고침 해도 고정이 되는데 county 는 고정이 안됩니다

아래소스중에 어디를 수정해야 할까요?

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<script>
var county = [];
county.push([11110, "서울 종로구"]);
county.push([11140, "서울 중구"]);
county.push([11170, "서울 용산구"]);
county.push([11200, "서울 성동구"]);

~~~~~~

county.push([50110, "제주 제주시"]);
county.push([50130, "제주 서귀포시"]);
function change(city){
    $("select#county option").remove();
    $("select#county").append("<option value=\"\">-- 시/군/구 --</option>");
    if(city == "00000"){
        return;
    }
    for(i = 0; i < county.length; i++){
        if((county[i][0] - city) < 1000 && (county[i][0] - city) > 0){
            $("select#county").append("<option value=\""+county[i][0]+"\">"+county[i][1]+"</option>");
        }
    }
}
</script>

<form id="fsearch"  method="get" action="<?php echo $_SERVER['PHP_SELF']; ?>?bo_table=<?php echo $board['bo_table']; ?>">
    <input type="hidden" name="bo_table" value="<?php echo $bo_table; ?>">
    <input type="hidden" name="bo_use_adv_search" value="1">
    <input type="hidden" name="adv_type" value="guin">
    <input type="hidden" name="sca" value="<?php echo $sca; ?>">

<div style="position: relative; border: 0px solid #660000; margin:0; padding:0 10px 10px 10px; clear:both;">
    <ul class="eztList_ul">
        <li>
            <span class="span_title">지역 : </span>
            <select id="city" name="city" onchange="change(this.value);">
                <option value='00000'>-- 시/도 --</option>
                <option value='11000' <?php if($city == "11000") echo "selected"; ?>>서울</option>
                <option value='26000' <?php if($city == "26000") echo "selected"; ?>>부산</option>
                <option value='27000' <?php if($city == "27000") echo "selected"; ?>>대구</option>
                <option value='28000' <?php if($city == "28000") echo "selected"; ?>>인천</option>
                <option value='29000' <?php if($city == "29000") echo "selected"; ?>>광주</option>
                <option value='30000' <?php if($city == "30000") echo "selected"; ?>>대전</option>
                <option value='31000' <?php if($city == "31000") echo "selected"; ?>>울산</option>
                <option value='36110' <?php if($city == "36110") echo "selected"; ?>>세종</option>
                <option value='41000' <?php if($city == "41000") echo "selected"; ?>>경기</option>
                <option value='42000' <?php if($city == "42000") echo "selected"; ?>>강원</option>
                <option value='43000' <?php if($city == "43000") echo "selected"; ?>>충북</option>
                <option value='44000' <?php if($city == "44000") echo "selected"; ?>>충남</option>
                <option value='45000' <?php if($city == "45000") echo "selected"; ?>>전북</option>
                <option value='46000' <?php if($city == "46000") echo "selected"; ?>>전남</option>
                <option value='47000' <?php if($city == "47000") echo "selected"; ?>>경북</option>
                <option value='48000' <?php if($city == "48000") echo "selected"; ?>>경남</option>
                <option value='50000' <?php if($city == "50000") echo "selected"; ?>>제주</option>
            </select>
            <select id="county" name="county">
                <option value="">-- 시/군/구 --</option>
            </select>
        </li>