Hjælp til korrekt validering

Hej Eksperter.

Jeg har prøvet at validere min kode, og får 2 fejl for flg:


<script type="text/javascript">
    function show(id) {
    var d = document.getElementById(id);
    if(d.style.display=='none'){ closeall(); d.style.display='block'; }
    else{ closeall(); }
    }
    function closeall(){
    for (var i=1;i<10; i++) {
        if (document.getElementById('smenu'+i)) {document.getElementById('smenu'+i).style.display='none';}
    }
    }
    window.onload=closeall;
    </script>



#  Warning  Line 17, Column 15: character "<" is the first character of a delimiter but occurred as data.

    for (var i=1;i<10; i++) {

This message may appear in several cases:

    * You tried to include the "<" character in your page: you should escape it as "&lt;"
    * You used an unescaped ampersand "&": this may be valid in some contexts, but it is recommended to use "&amp;", which is always safe.
    * Another possibility is that you forgot to close quotes in a previous tag.


Line 17, Column 16: XML Parsing Error: StartTag: invalid element name.

    for (var i=1;i<10; i++) {




Er der nogle der kan fortælle mig hvad jeg gør galt? :)

På forhånd tak