如何给指定div赋值。急！！！！！！

Question

function setshop(shopinfo)
{ 
  var obj = document.getElementById("");
  var t = shopinfo; 
  obj.innerText = t ;
  
  } 
<div align="CENTER" id="divTest" STYLE="cursor: hand" onMouseover="showtip2(this,event,'？？');" 
onMouseout="hidetip2();" name="divTest"> 
</div>

Answer 1

function setshop(shopinfo)
{ 
  var obj = document.getElementById("");
  var t = shopinfo; 
  obj.innerText = t ;
  
  } 
<div align="CENTER" id="divTest" STYLE="cursor: hand" onMouseover="showtip2(this,event,'？？');" 
onMouseout="hidetip2();" name="divTest"> 
</div>