var processing = false;
var currentQuery = false;
var timer = false;
function handleSearchBoxChange()
{
	var q = $('staff_query').getValue();
	if( q.length < 3 )
	{ 
		// too short, kill any pending searches and return
		if(timer) 
			{ clearTimeout( timer ); }
		return; 	
	}

	// some simple locking
	if( processing ) { return; }
	processing = true;

	if( !currentQuery || currentQuery != q )
	{
		currentQuery = q;

		if( timer )
			{ clearTimeout( timer ); }

		timer = setTimeout( doSearch, 500 );
	}

	processing = false;
}

function doSearch()
{
	

	$('full-staff').innerHTML = '<img src="/calendar/spinner3-black.gif" alt="loading..." title="loading..." /> Loading...';
	$('full-staff').fillWithPage( '/employees/addons/contact/dir_search.php?iQuery='+escape(currentQuery)+'&ts='+_ts());

	currentQuery = false;
}

addWindowOnload( function() { 
	$('staff_query').onchange = $('staff_query').onkeyup = handleSearchBoxChange;
} );