this方法获取a标签ID值及内容；idx传参

<a href='#' onclick='showDetail(this);' id="aId">XX</a>

<script type="text/javascript">
function showDetail(th) {
var id = th.id;               //将获取的id值赋给新变量
var aContent = document.getElementById(id).innerHTML;     //通过获取到的id值得到其内容，并赋给aContent变量
}
</script>

<a href='ShowDetailInfo.aspx?idx=keyIdx'></a>       //keyIdx需要传递的参数值

<a href='#' onclick='showDetail(this);' id="keyIdx" >

<script type="text/javascript">
function showDetail(th) {
var id = th.id;
var zhName = document.getElementById(id).innerHTML;
art.dialog.top.artDialog.open('Default.aspx?Idx='+id, {
title: zhName, width: 980, height: 485, lock: true, opacity: 0.7
});
}
</script>