如果页面上只有Textarea,可以用如下方法来遍历其name属性然后赋给id属性: <script>
try{
window.onload = setTextAreaIds();setTextAreaId();
}catch(e){}
</script> function setTextAreaIds()
{
try{
var textAreaobj = document.getElementsByTagName("TEXTAREA");
if(textAreaobj != null && textAreaobj != undefined)
{
for (var i = 0; i < textAreaobj.length; i++)
{
if(textAreaobj[i] != null && textAreaobj[i] != undefined)
{
var idVal = textAreaobj[i].id;
if(idVal ==null || idVal == undefined || idVal == "")
{
textAreaobj[i].id = textAreaobj[i].name;
}
//alert("now id : "+textAreaobj[i].id);
}
}
}
}catch(e){} }