var empty_team=new Array(2);
empty_team[0]=new Array(new Array("所有类别",0));
empty_team[1]=new Array(new Array("所有字段",0));

var myfield = new Array(
new Array(
new Array("所有字段", "all"),
new Array("商品名称","product_name")
),
new Array(
new Array("所有字段", "all"),
new Array("商品名称","product_name")
)
);