function show_tab(id) {
var table = window.document.getElementById(id);
table.style.display = ''; }

function show_hide(id) {
var table = window.document.getElementById(id);
table.style.display = 'none'; }

var processed1 = new Image()
processed1.src = "images/sprechblase.gif";

var processed2 = new Image()
processed2.src = "images/sprechblase_left.gif";

var processed3 = new Image()
processed3.src = "images/sprechblase_bottom.gif";

var processed4 = new Image()
processed4.src = "images/info_symbol_text.gif";

function gop(pagename) { if (pagename != "leer") { document.location.href = ''+pagename+''; }}

function set_inp() {

document.search_form.query_string.value='';
document.search_form.query_string.style.color = '#5D5D5D';

}

function set_log() {

document.login.user.value='';
document.login.user.style.color = '#5D5D5D';

}

function set_pass() {

document.login.pwd.value='';
document.login.pwd.style.color = '#5D5D5D';

}