function activateSearch(){
	var search = document.getElementById('zoekveld');	
	if(search.value == search.defaultValue){
		search.value = '';
		search.style.color = '#000000'
	}
}

function deactivateSearch(){
	var search = document.getElementById('zoekveld');	
	
	if(search.value == '' || search.value == search.defaultValue){
		search.value = search.defaultValue;
		search.style.color = '#AAAAAA';
	}
}