function dv_navigate(direction, instance, pos)
{
	var container = $(instance);
	
	var parameters = {
		direction:		direction,
		instance:		instance,
		action:			'navigate'
	}
	
	var succes_actions = function(transport)
	{
		var responseText = transport.responseText;
		container.innerHTML = responseText;
		initLightbox();
		
		if(dvGoToTop && pos == 'bottom') location.href = "#"+instance+"_top";
	}
	
	new Ajax.Request(dvAjaxUrl,{
		method:			'post',
		parameters:		parameters,
		onSuccess:		succes_actions
	});
}

function dv_search(searchField, instance)
{
	var container = $(instance);
	
	var parameters = {
		instance:		instance,
		search:			searchField.value,
		action:			'search'
	}
	
	var succes_actions = function(transport)
	{
		var responseText = transport.responseText;
		container.innerHTML = responseText;
		initLightbox();
	}
	
	new Ajax.Request(dvAjaxUrl,{
		method:			'post',
		parameters:		parameters,
		onSuccess:		succes_actions
	});
}

function dv_search_focus(searchField)
{
	if(searchField.value == searchStr)
	{
		searchField.value = "";
	}
}