使用jquery怎么根据ID给元素赋值

1、编写页面：

<input type="button" value="按价格" name="score" id="bypic" onclick="bypicord()">&nbsp;&nbsp;

<input type="hidden" value="desc" id="ordercon">

2、编写js:

<script type="text/javascript">

function bypicord(){

var reorder = $("#ordercon").val();

if("desc" == reorder){

$("#ordercon").val("asc");

var url = "<%=path %>/product/listproduct.action?uid="+${sessionScope.user.id}+"&sort=price&ten=Y&FROMBUS=Y&order=asc";

gotoquery(url);

//window.location.href =gotoquery('url');

}else {

$("#ordercon").val("desc");

reorder = "desc";

var url = "<%=path %>/product/listproduct.action?uid="+${sessionScope.user.id}+"&sort=price&ten=Y&FROMBUS=Y&order=desc";

gotoquery(url);

}

}

</script>

其中的：$("#ordercon").val("asc");就是给id为ordercon的元素赋值

3、效果如下：