var selected = null;
$(document).ready(function(){
$("#<%=myTable.ClientID %>").find("tr").click(function(){
$(selected).removeClass("selected");
$(this).addClass("selected");
selected = this;
});
$("#<%=myTable.ClientID %>").find("tr").dblclick(function(){
/* if you just want to dig into that record I would put a custom attribute on the row */
window.location = "<%=ResolveUrl("~/one/folder/deeper/") %>?record=" + $(this).attr("RecordId");
/* or you could have a hidden LinkButton in the row (Text="" or not set) that you could trigger. Make sure you set the CommandName="Something" and CommandArgument="RecordId" */
$(this).find("a").click();
});
});