var a=$("#detail_show").html();
if(a==""||a==null){
//内容为空
$("#description_show").hide()
}else{
$("#description_show").show()
}
var str= document.getElementById('detail').innerText;
if(str!=“”)
{
document.getElementById('detail').style.dispaly="none";
}
else
document.getElementById('detail').style.dispaly="block";