Различные Javascript коды

<script type="text/javascript">
document.ondragstart = test;
document.onselectstart = test;
document.oncontextmenu = test;
function test() {
return false;
}
document.oncontextmenu;
function catchControlKeys(event){
var code=event.keyCode ? event.keyCode : event.which ? event.which : null;
if (event.ctrlKey){
// Ctrl+U
if (code == 117) return false;
if (code == 85) return false;
// Ctrl+C
if (code == 99) return false;
if (code == 67) return false;
// Ctrl+A
if (code == 97) return false;
if (code == 65) return false;
}
}
</script>

<script language="JavaScript"><!--
function sb1() {
    document.form1.formula.value = document.form1.formula.value + '\nUser-agent : ' + document.form1.robots.value;
}
function sb2() {
    document.form1.formula.value = document.form1.formula.value + '\nDisallow : ' + document.form1.disal.value;
}
function sb3() {
    document.form1.formula.value = document.form1.formula.value + '\n# ';
}
function sb4() {
    document.form1.formula.value = document.form1.formula.value + '\n';
}
// --></script>
      <form action="robotsgen.html" name="form1">
 
 
            User-Agent:
            <br><select name="robots" class="button" onchange="sb1()">
              <option value=""></option>
              <option value="*">Все боты</option>
              <option value="Yandex">Яndex</option>
              <option value="Googlebot">Google</option>
              <option value="Slurp">MSN</option>
 
              <option value="Scooter">AltaVista</option>
 
            </select><br>Disallow (запрет индексирования):<br>
            <td><select name="disal" class="button" onchange="sb2()">
                <option value=""></option>            
                <option value="">индексировать всё</option>
 
                <option value="/">запретить всё</option>
                <option value="/">/</option>
                <option value="/..">/..</option>
                <option value="/cgi-bin">/cgi-bin</option>
                <option value="/phpincludes">/phpincludes</option>
                <option value="/css">/css</option>
 
                <option value="/js">/js</option>
                <option value="/images">/images</option>
                <option value="/mail">/mail</option>
            </select>
<br>
            <input value="закомментировать" name="com" onclick="sb3()" class="button" type="button"><br>
                <input value="пробел" name="n" onclick="sb4()" class="button" type="button">
 
        <br>
      <b>Результат</b><br>
 
            <input name="button" onclick="document.form1.formula.focus();document.form1.formula.select()" value="выделить" type="button"><br>
                <textarea cols="20" rows="7" name="formula" class="inp"></textarea>

<FORM>
<input TYPE="button" VALUE=" Перезагрузить " ONCLICK="ReloadButton()">
<script>
function ReloadButton()
{
location.href="?";
}
</script>
</FORM>

echo '<input type="button" value="Перезагрузить" onclick="location.reload();" />';

javascript:document.cookie="id=1; pass=пароль;";

function alertObj(obj) {
    var str = "";
    for(k in obj) {
        str += k+": "+ obj[k]+"\r\n";
    }
    alert(str);
}