innerText和textContent

function ChangeRop(obj,pj_id,taskId) { html="<form name=/"taskForm/" action=/"./?module=Project_Task&act=DoEditProjectTaskDetail/" method=/"post/"/">"; html+= "<table align='left'><div><tr>"; html+="<input type='hidden' name='pj_id' value="+pj_id+">"; html+="<input type='hidden' name='taskId' value="+taskId+">"; if(document.all){html+="<input type='text' id='task_rop' name='task_rop' maxlength='2' size='2' value="+obj.innerText+">"} else{html+="<input type='text' id='task_rop' name='task_rop' maxlength='2' size='2' value="+obj.textContent+">"} html+="<input type='submit' value='OK'>"; html+="</tr></div></table>"; html+="</form>"; obj.innerHTML=html;}

<td nowrap id="t_rop"{if $projectTask[p_task].rop==100}bgcolor="#f4f4f4"{/if} ondblClick="ChangeRop(this,{$projectTask[p_task].pj_id},{$projectTask[p_task].id})">{$projectTask[p_task].rop} <meta>%</meta></td>