input的值

[lvwp1992]

<span class="goods_cut" onclick="goods_cut(${item.goods.goodsid});changePrice();">
   <img src="${ initParam.resource }/image/jian.gif" alt="减少" width="15px" height="15px" /> 
</span> 
<input id="${item.goods.goodsid }count" class="num" type="text" name="${item.goods.goodsid }count" value="${item.quantity}" size="2" onblur="changePrice()" /> 

function goods_cut(goodsid)
	{
		var num_val=document.getElementById("goodsidcount");
		var new_num=num_val.value;
		var Num = parseInt(new_num);
		if(Num>1) 
			{Num=Num-1;
			num_val.value=Num;
			 
			}
	}

我想得到特定的count的值，var num_val=?该怎么写

[lvwp1992]

万分感谢

[lvwp1992]

没有分了，抱歉，求好心大大帮忙解决下

[tianma630]

吧var num_val=document.getElementById("goodsidcount");改成 var num_val=document.getElementById(goodsid+"count");