<p> Brukernavn: <input id="name" class="inactive" type="text"> </p> <p> Passord: <input id="password" class="inactive" type="password"> </p> <script type="text/javascript"> addColorSignaling = function( elmID) { var elm = document.getElementById( elmID); if( elm) { activate = function() { this.setAttribute( 'class', 'active'); } deactivate = function() { this.setAttribute( 'class', 'inactive'); } elm.addEventListener( 'focus', activate, false); elm.addEventListener( 'blur', deactivate, false); } } addColorSignaling( 'name'); addColorSignaling( 'password'); </script>