a标签中的href调用js对话框

<a href="javascript:if(confirm('确认要删除吗？')){window.location='${ctx}/oa/meetingroom_delete?id=${item.id}&'}" class="fg-button ui-state-default fg-button-icon-solo ui-corner-all" title="删除"><span class="ui-icon ui-icon-trash"></span></a>