/**
 * General notice: 
 * There is no intialization processus of the pre-checked boxes. 
 * If checkbox should be checked and display their child on start, the children attribute of the checkbox must be filled 
 * 
 * Currently known limitation:
 * - Inside popin it don't display outside popin
 * - If the pseudo select tag is all on the right of the screen, the option list will be displayed outside of the screen
 */ 

/**
 * Display the list options when a user click on the pseudo-select tag
 * 
 * @param String Integer The ID that identify the advanced list 	 	 	 
 */	 
function show_adv_list( id)
{
	// if a list if currently opened, close this list before
	if( document.current_list_container)
		hide_list();
	var list_container		= document.getElementById( 'list_container_'+ id );
	var current_list_head	= document.getElementById( 'list_head_'+ id );
	
	// position the option list that should appears
	list_container.style.top= ( current_list_head.offsetTop + current_list_head.offsetHeight -1 )+"px";
	list_container.style.left= current_list_head.offsetLeft+"px";
	list_container.style.display= 'block';
	list_container.shown	= true;
	current_list_head.default_onmousedown	= current_list_head.onmousedown;

	// store references for the currently opened list
	document.current_list_container	= list_container;
	document.current_list_head	= current_list_head;

	// the event initialisation is putted in a timeout in order to avoid interaction between thoses declaration and the current event
	setTimeout('document.onmousedown= verif_click_list', 0);
	setTimeout('document.current_list_head.onmousedown			= ""', 0);
}

/**
 * A click has been made somewhere in the window. If it's outside the list, the list should close itself
 */	 	
function verif_click_list(e )
{
	if( !e )
		e= event;
	// get the target element of the click
	var node= (e.target || e.srcElement);
	while( node.parentNode )
	{
		// the event has been fired inside the displayed list, we stop here
		if( node == document.current_list_container )
		{
			return false;
		}
		
		node= node.parentNode;
	}
	// the click has not been fired insed the displayed list so we hide the opened list
	hide_list();
	return true;
}

/**
 * Hide the opened list and cleanup events
 */	 	
function hide_list( )
{
	if( document.current_list_container )
	{
		document.current_list_container.style.display	= "none";
		document.onmousedown							= '';
		document.current_list_head.onmousedown			= document.current_list_head.default_onmousedown;
		document.current_list_container					= false;
	}
}

/**
 * Called when a click is made over a link or a checkbox
 * 
 * @param String id The ID that identify the checkbox 	 	 
 */	 	
function adv_list_click_input( id )
{
	var input				= document.getElementById( 'site_partner_link_site_partner_link_area_list_'+ id );
	var children_container	= document.getElementById( 'adv_list_child_'+ id );
	
	// change the checked option of the input
	input.checked 			= !input.checked;
	// if the checkbox is now checked, we execute the oncheck process and allow to show the child list 
	if( input.checked )
	{
		children_container.style.display= "block";
		eval( input.getAttribute('_oncheck') );
	}
	// otherwise we hiddenthe child list and execute the onuncheck process
	else
	{
		children_container.style.display= "none";
		eval( input.getAttribute('_onuncheck') );
	}	
}

/**
 * Ajax call for loading child list
 * 
 * @param String url The URL of the ajax call
 * @param String list_id The ID that identify the advance list
 * @param String check_id The ID that identify the checkbox
 * @param Boolean do_cache Indicate if the ajax query result must be cached for later calls
 */	 
function adv_list_ajax_load( url, list_id, check_id, do_cache)
{
	input = document.getElementById( 'site_partner_link_site_partner_link_area_list_'+ check_id );
	var post_params	= 'name='+ input.name +'&value='+ input.value +'&destination=adv_list_child_'+ check_id +'&list_id='+ list_id;
	
	// Creation of a new Ajax object instance
	var ajax= new PFW_AJAX(url);
	ajax.setParametres( post_params );
	
	// Cache activation
	if( do_cache )
		ajax.setCacheMode('auto');
	
	ajax.HTTPrequest();
}