document.observe("dom:loaded", function() {
     $('name').observe('click', function(e) { e.element().value = ''; });
     $('tel').observe('click', function(e) { e.element().value = ''; });
     $('email').observe('click', function(e) { e.element().value = ''; });
	 

     var name = $('name').value;
     var email = $('email').value;
     var tel = $('tel').value;


     $$('input[name=simpleform_submit]').first().observe('click',function(e){
         String.prototype.trim = function() {
             return this.replace(/^\s+|\s+$/g,"");
         }

         if( !$('tel').value.trim() || !$('name').value.trim() || !$('email').value.trim() || ( $('name').value == name ) || ( $('email').value == email ) || ( $('tel').value == tel )){
             alert('Vennligst fyll ut alle feltene.');
             Event.stop(e);
         } else {
            var filter =/^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
            if( !filter.test( $('email').value ) ){
                 alert('E-post er ikke gyldig.');
                 Event.stop(e);
            }
         }
     });
});