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{dede:arclist row='10' titlelen='20' channelid='1' typeid='1'  orderby='id' orderway='asc'  runphp="yes" }
<li><a href="[field:arcurl /]" [field:global name=autoindex runphp="yes"](@me==3)? @me="class=s":@me="";[/field:global] >[field:title /] [field:url /]</a></li>
{/dede:arclist}

{dede:arclist}
<a href='xxx' id="arc[field:id/]" style="">[field:title/]</a>
{/dede:arclist}

<script type='text/javascript'>
document.getElementById("arc[field:id/]").style.color="#ff0000";
</script>

{dede:arclist}
<a href='xxx' id="arc[field:id/]" class="">[field:title/]</a>
{/dede:arclist}


<script type='text/javascript'>
document.getElementById("arc{dede:field.id /}").className="s";
</script>