function menuOver(text, id, sub, over){
	if (over){
		var item = document.getElementById('menu'+id);
		item.src = '/inc/kop_menu_over.php?txt=' + text;
	}
	if (sub){
		var subitem = document.getElementById('submenu'+id);
		subitem.style.display = 'block';
	}
}

function menuOut(text, id, sub, over){
	if (over){
		var item = document.getElementById('menu'+id);
		item.src = '/inc/kop_menu.php?txt=' + text;
	}
	if (sub){
		var subitem = document.getElementById('submenu'+id);
		subitem.style.display = 'none';
	}

}

function checkSearch(){
	var item = document.getElementById('keyword');
	if (item.value!=''){
		document.searchfrm.action = '/search.htm';
		document.searchfrm.submit();
	} else {
		alert('Please fill in a search keyword!');
	}
}