高手解决，给100

Question

用eval函数!
function searchs(a)
{
loading.style.display="block";
eval("document.keyword" + a + ".keyword1.disabled")=true;
eval("document.keyword" + a + ".submit_1.disabled")=true;
eval("document.keyword" + a + ".submit_1.className")="search_off";
eval("keyword" + a + ".submit()");
}

Answer 1

也可以这样
function searchs(a)
{
    var kw;
    kw = document.getElementById("keyword" + a);
    loading.style.display="block";
    kw.keyword1.disabled=true;
    kw.submit_1.disabled=true;
    kw.submit_1.className="search_off";
    kw.submit();
}

Answer 2

function searchs(a){
  var obj=document.all["keyword"+a];
  loading.style.display="block";
  obj.keyword1.disabled=true;
  obj.submit_1.disabled=true;
  obj.submit_1.className="search_off";
  obj.submit();
}

Answer 3

keyword1应该是个form吧?
用document.forms["keyword"+a].element["submit_1"].disabled=true