根据不同的产品id获得不同的下拉选项 （option传多值）

<td> 没有 value

所以要在<td>里面加上input  同时text 为hidden这样就不会显示value的值

<td><select id='goodRefSuppliers_${s.index}' style='width: 100px;'><option value=''>--请选择--</option>
			<c:forEach var='goodRefSuppliers' items='${goodRefSuppliersList}'>
			 <c:if test ="${goodRefSuppliers.prdInfo == prd}">
			 <option id='${goodRefSuppliers.suppliers.id}' value='${goodRefSuppliers.suppliers.name},${goodRefSuppliers.suppliers.id}'>${goodRefSuppliers.suppliers.name}
			 </option>
			 </c:if>
			 </c:forEach>
			 </select>
			 </td>

var chk_value = [];
	function jqchk() { //jquery获取复选框值

		$('input[name="id"]:checked').each(function() {
			var ip = $(this).attr('id');
			var val = $(this).val();
			//alert(val);
			var unit = $('#unit_'+ip).val();
			var goodRefSuppliers = $('#goodRefSuppliers_'+ip).val();
			//alert(goodRefSuppliers);
			val = val + "," + unit+"," +goodRefSuppliers;
			chk_value.push(val);
		});
		if (chk_value.length == 0) {
			alert('没有选择任何数据。');
			return false;
		}
		return true;
	}

	function ext(){
	   if(jqchk()){
			var str = "";
		 	for(var i=0;i<chk_value.length;i++){
		 		var ips = parseInt(Math.random() * new Date().getTime());
		 		str = str + "<tr id='gradeTr_"+ips+"'>"
	               +"<td>" + chk_value[i].split(",")[1] + "</td>"
	               +"<td>" + chk_value[i].split(",")[2] + "</td>"
	               +"<td>" + chk_value[i].split(",")[3] + "</td>"
	               +"<td><input type='hidden' id='suppliers_"+ips+"' value=" + chk_value[i].split(",")[5] + "> "+ chk_value[i].split(",")[4] +"</td>"
	               +"<td><select id='gradeCode_"+ips+"' style='width: 100px;'><option value=''>--请选择--</option><c:forEach var='grade' items='${productGradeList}'><option value='${grade.propertyCode}'>${grade.propertyValue}</option></c:forEach></select></td>"
	               +"<td><select id='inventoryStatus_"+ips+"' style='width: 100px;'><option value=''>--请选择--</option><c:forEach var='status' items='${inventoryStatusList}'><option value='${status.propertyCode}'>${status.propertyValue}</option></c:forEach></select></td>"
	               +"<td><select id='inventoryType_"+ips+"' style='width: 100px;'><option value=''>--请选择--</option><c:forEach var='inventoryType' items='${inventoryTypeList}'><option value='${inventoryType.propertyCode}'<c:if test="${inventoryType.propertyValue=='备件库存'}">selected</c:if>>${inventoryType.propertyValue}</option></c:forEach></select></td>"
	               +"<td><input type='text' id='itemKey_"+ips+"' value='无'/></td>"
	               +"<td><input type='text' id='quantity_"+ips+"' onkeyup='javascrit:IsNum(this)'/></td>"
	               +"<td align='center'><input type='hidden' name='prdId' value='"+chk_value[i].split(",")[0]+"' id='"+ips+"'/><a href='javascript:deleteGoods("+ips+")'>删除</a></td></tr>";
			}//for
		 	closePopup();
			parent.refreshMain(str);
			//alert(str);
			parent.hideErrorMsg();

		}//if
     }