[monolithed]

на вскидку:

<script type="text/javascript">
window.onload = function(){
    (function(){
        var i = arguments.length, select = document.form.elements[0];
        while(i--){ 
            document.getElementById(arguments[i]).style.display = 'none';
            var option = document.createElement('option');
                option.text = arguments[i];
                option.value = i;
            try {
                select.add(option, null);
            }
            catch(e) {
                select.add(option);
            }
       }
    })('div1', 'div2', 'div3');
};
</script>
<div id="div1">text1</div>
<div id="div2">text2</div>
<div id="div3">text3</div>

<form action="" method="" name="form">
    <select></select>
</form>