if ('Navigator' == navigator.appName)
document.forms[0].reset(); 
<!--//  popup [Klokie 2000]
IE = navigator.appName=="Microsoft Internet Explorer";
NS = navigator.appName=="Netscape";
bVer = parseInt(navigator.appVersion);

var newWin=null;

function popup(loc, name, width, height) {
        var _params = "width="+width+",height="+height+",resizable=no,status=no,scrollbars=no,menubar=no";

        // CENTER ON BROWSERS WHICH SUPPORT JSCRIPT 1.2
        if (bVer >= 4) {
                 _left = ( (screen.width-width) >>1 );
                 _top = ( (screen.height-height) >>1 );
        } else {
                 _left = ( (800-width) >>1 );
                 _top = ( (600-height) >>1 );
        }

        if (IE) _params += ",top=" + _top + ",left=" + _left;
        else if (NS) _params += ",screenX=" + _left + ",screenY=" + _top;

        newWin = window.open(loc, name, _params);
        if ( newWin!=null && !(IE && bVer<5) )
                newWin.focus(); // MSIE4 DOESN'T FOCUS WINDOWS
}

function getAllSheets() {
  if( !window.ScriptEngine && navigator.__ice_version ) { return document.styleSheets; }
  if( document.getElementsByTagName ) { var Lt = document.getElementsByTagName('link'), St = document.getElementsByTagName('style');
  } else if( document.styleSheets && document.all ) { var Lt = document.all.tags('LINK'), St = document.all.tags('STYLE');
  } else { return []; } for( var x = 0, os = []; Lt[x]; x++ ) {
    var rel = Lt[x].rel ? Lt[x].rel : Lt[x].getAttribute ? Lt[x].getAttribute('rel') : '';
    if( typeof( rel ) == 'string' && rel.toLowerCase().indexOf('style') + 1 ) { os[os.length] = Lt[x]; }
  } for( var x = 0; St[x]; x++ ) { os[os.length] = St[x]; } return os;
}
function changeStyle() {
  for( var x = 0, ss = getAllSheets(); ss[x]; x++ ) {
    if( ss[x].title ) { ss[x].disabled = true; }
    for( var y = 0; y < arguments.length; y++ ) {
     if( ss[x].title == arguments[y] ) { ss[x].disabled = false; }
} } }

