function del_item(post_id){
	
	var url = './cart/del_item.php';
	var totalPrice = 0;
	
	
	//del_itemでリクエストされた削除IDを渡す
	$.post(url, {del_id:post_id}, function(){
		target_tr = "#tr"+ post_id;
		$(target_tr).remove();
	});

}


function mount_up(target_name){
	var target = "#" + target_name;
	var count_up_num = Number($(target).val()) + 1;
	
	if(count_up_num < 10){
		$(target).attr("value", count_up_num);
	}else{
		alert("9以上をお求めの場合は、お問い合わせ時にお知らせください。");
	}
}
function mount_down(target_name){
	var target = "#" + target_name;
	var count_up_num = Number($(target).val()) - 1;
	
	if(count_up_num > 0) {
		$(target).attr("value", count_up_num);
	}
}


function cart_modcount(target_name, item_id){
	var target = "#" + target_name;
	var count_up_num = Number($(target).val());
	var url = './cart/mod_item.php';
	
	if(count_up_num < 10){
	
	 $.post(url, {"item_id":item_id, "item_cnt":count_up_num}, function(){
	 });
	}
}