js 报错 :object is not a function

var h2_price = document.getElementById("h2_price");
var h2_tickets = document.getElementById("h2_tickets");
var h2_accomd = document.getElementById("h2_accomd");

function h2_price(){

bd_price.style.display = "block";

bd_tickets.style.display = "none";
//让军事列表隐藏
bd_accomd.style.display = "none";

//让图片span去掉下边框线
h2_price.style.background = "blue";
//让新闻span加上下边框线
span_news.style.background= "#ccc";
//让军事span加上下边框线
span_js.style.background = "#ccc";
}

上例中的就是h2_price 变量名和函数名重复了，更换一下就可以解决