function zip_code(n,val){
	var zip_code = document.form.user_zip1.value+document.form.user_zip2.value ;
	if(zip_code.length != 7){
		return ;
	}
	var url = "/entry/_post_zip.php" ;
	new Ajax.Request(url, {
		method: "get",
		parameters: 'post_num='+zip_code,
		onSuccess:function(httpObj){
			var address = new Array ;
			address = httpObj.responseText.split(';') ;
			document.form.user_address.value = address[2]+address[3] ;
			if(address[1] == '北海道'){document.form.user_pref.item(0).selected = true ;}
			if(address[1] == '青森県'){document.form.user_pref.item(1).selected = true ;}
			if(address[1] == '岩手県'){document.form.user_pref.item(2).selected = true ;}
			if(address[1] == '宮城県'){document.form.user_pref.item(3).selected = true ;}
			if(address[1] == '秋田県'){document.form.user_pref.item(4).selected = true ;}
			if(address[1] == '山形県'){document.form.user_pref.item(5).selected = true ;}
			if(address[1] == '福島県'){document.form.user_pref.item(6).selected = true ;}
			if(address[1] == '茨城県'){document.form.user_pref.item(7).selected = true ;}
			if(address[1] == '栃木県'){document.form.user_pref.item(8).selected = true ;}
			if(address[1] == '群馬県'){document.form.user_pref.item(9).selected = true ;}
			if(address[1] == '埼玉県'){document.form.user_pref.item(10).selected = true ;}
			if(address[1] == '千葉県'){document.form.user_pref.item(11).selected = true ;}
			if(address[1] == '東京都'){document.form.user_pref.item(12).selected = true ;}
			if(address[1] == '神奈川県'){document.form.user_pref.item(13).selected = true ;}
			if(address[1] == '新潟県'){document.form.user_pref.item(14).selected = true ;}
			if(address[1] == '富山県'){document.form.user_pref.item(15).selected = true ;}
			if(address[1] == '石川県'){document.form.user_pref.item(16).selected = true ;}
			if(address[1] == '福井県'){document.form.user_pref.item(17).selected = true ;}
			if(address[1] == '山梨県'){document.form.user_pref.item(18).selected = true ;}
			if(address[1] == '長野県'){document.form.user_pref.item(19).selected = true ;}
			if(address[1] == '岐阜県'){document.form.user_pref.item(20).selected = true ;}
			if(address[1] == '静岡県'){document.form.user_pref.item(21).selected = true ;}
			if(address[1] == '愛知県'){document.form.user_pref.item(22).selected = true ;}
			if(address[1] == '三重県'){document.form.user_pref.item(23).selected = true ;}
			if(address[1] == '滋賀県'){document.form.user_pref.item(24).selected = true ;}
			if(address[1] == '京都府'){document.form.user_pref.item(25).selected = true ;}
			if(address[1] == '大阪府'){document.form.user_pref.item(26).selected = true ;}
			if(address[1] == '兵庫県'){document.form.user_pref.item(27).selected = true ;}
			if(address[1] == '奈良県'){document.form.user_pref.item(28).selected = true ;}
			if(address[1] == '和歌山県'){document.form.user_pref.item(29).selected = true ;}
			if(address[1] == '鳥取県'){document.form.user_pref.item(30).selected = true ;}
			if(address[1] == '島根県'){document.form.user_pref.item(31).selected = true ;}
			if(address[1] == '岡山県'){document.form.user_pref.item(32).selected = true ;}
			if(address[1] == '広島県'){document.form.user_pref.item(33).selected = true ;}
			if(address[1] == '山口県'){document.form.user_pref.item(34).selected = true ;}
			if(address[1] == '徳島県'){document.form.user_pref.item(35).selected = true ;}
			if(address[1] == '香川県'){document.form.user_pref.item(36).selected = true ;}
			if(address[1] == '愛媛県'){document.form.user_pref.item(37).selected = true ;}
			if(address[1] == '高知県'){document.form.user_pref.item(38).selected = true ;}
			if(address[1] == '福岡県'){document.form.user_pref.item(39).selected = true ;}
			if(address[1] == '佐賀県'){document.form.user_pref.item(40).selected = true ;}
			if(address[1] == '長崎県'){document.form.user_pref.item(41).selected = true ;}
			if(address[1] == '熊本県'){document.form.user_pref.item(42).selected = true ;}
			if(address[1] == '大分県'){document.form.user_pref.item(43).selected = true ;}
			if(address[1] == '宮崎県'){document.form.user_pref.item(44).selected = true ;}
			if(address[1] == '鹿児島県'){document.form.user_pref.item(45).selected = true ;}
			if(address[1] == '沖縄県'){document.form.user_pref.item(46).selected = true ;}
		}
	});
}