function search() {
            var Term = (document.getElementById('searchterm').value);
            
            if (Term == document.getElementById('searchterm').title || Term.length < 4) 
            {
                alert ('Geef een zoekterm op van minimaal 3 karakters.');
                return false;
            }
            else
            {
                document.location.href = 'http://www.curtevenneschool.nl/search.php?searchterm=' + Term;
            }
        }
        
        $(document).ready(function(){
            $('#searchterm').keypress(function(e) {
			    if (e.which == 13 ) {
			        //enter was pressed, go search
			        search();
			    }
		    });
		    
		    //show title attribute as hint in textfield
		    $('input:text').hint();
           
        });