function placeOrder(bookId, bookList){
	
	YAHOO.util.Connect.asyncRequest('GET', '/index.php?option=com_bookorder&task=orderbook&bookid='+bookId+'&booklistid='+bookList,{
		success:function(o){
			document.getElementById('bookOrderOverview').innerHTML = o.responseText;
		}, 
		failure:function(o){
		}
	}
	);	
}
function deleteOrder(orderId){
	YAHOO.util.Connect.asyncRequest('GET', '/index.php?option=com_bookorder&task=delete&orderid='+orderId,{
		success:function(o){
			document.getElementById('bookOrderOverview').innerHTML = o.responseText;
		}, 
		failure:function(o){
		}
	}
	);	
}
function confirmOrder(){
	
	var state = confirm("De bestelling wordt geplaatst. Weet u zeker dat u verder wil gaan?");
	if(state){
		document.getElementById('formOrderBook').submit();
	}
		
}
function setBookListTab(id){
	var elms = document.getElementById('tabLinks').getElementsByTagName('a');
	for(var i=0; i < elms.length; i++){
		if(elms[i].id == 'bookList'+id){
			elms[i].className = 'linkActive';
		}
		else{
			elms[i].className = 'linkTab';	
		}
	}
	var elms = document.getElementById('container').getElementsByTagName('div');
	for(var i=0; i < elms.length; i++){
		if(elms[i].id == 'bookOverview'+id){
			elms[i].style.display = 'block';	
		}
		else if(elms[i].className=='element'){
			elms[i].style.display = 'none';	
		}
	}

	document.getElementById('bookOverview'+id).style.display='block';

	return false;
}