//同城生活 各个板块切换
function switchTongChengTab(tab)
{
    $("div[id^=tongcheng_]").hide();
     $("#tongcheng_"+tab).show();
      $("a[id^=tongchengTab_]").removeClass("current");
     $("#tongchengTab_"+tab).addClass("current")
	//document.getElementById("tongcheng_xinxi"+tab).style.display = ""; 
	//document.getElementById("fc_tbh_"+tab).className = "current";
}