var fso = new ActiveXObject("Scripting.FileSystemObject"); 
var s = fso.OpenTextFile("test.txt", 1, true);
select = document.getElementById('dropdown2');
var arr=new Array();
var i=0;
do {
arr[i]=s.readLine();
}
while(s.readLine!=null);
for (i = 0; i<arr.length; i++){
    var opt = document.createElement('option');
    opt.value = "option"+(i+1);
    opt.innerHTML = arr[i];
    select.appendChild(opt);
}