function show_comment_form(abbrev) {
    var ajax = new Ajax();

    var myHandler = function(request) {
        var response = request.responseText;

        document.form2.action="http://www.lightsphere.com/blog2/comment.html";
        var input   = document.createElement("input");
        input.name  = 'authkey';
        input.type  = 'hidden';
        input.value = response;
        document.form2.appendChild(input);
        $("#formbutn").hide("fast");
        $("#comment_form").show("medium");
        window.scrollBy(0,100);
        document.form2.name.focus();   
    }   
    ajax.connect('http://www.lightsphere.com/blog2/ajax/getkey.html?abbrev=' + abbrev, myHandler); 
    document.form2.name.focus();

}