function add_to_search(){
    var inputfield;
    inputfield = document.getElementById('seguimiento').innerHTML;
    inputfield += document.getElementById('thiskeyword').value;
    document.getElementById('seguimiento').innerHTML = inputfield + "-";
    document.getElementById('secuencia').value = inputfield + "-";
}

function clear_search(){

    document.doc_searcher.thiskeyword.options[0].selected=true;
    document.getElementById('seguimiento').innerHTML = "-";
    document.getElementById('secuencia').value = "-";

}

function change_room(){

    document.getElementById('seguimiento').innerHTML = "-";
    document.getElementById('secuencia').value = "-";
    document.doc_searcher.submit();

}