(function ($)
{

    $.widget("portal.liveintervals",
	{
        options:
        {
            intervalitemlist: [],
            intervaltime: 30000
        },
	    _create: function ()
	    {
	        var $that = this;
	        setInterval(function () { $that.callliveupdates(); }, $that.options.intervaltime);
	    },
	    callliveupdates: function()
	    {
	        var $that = this;
	        for (var p = 0; p < $that.options.intervalitemlist.length; p++)
	        {
	            runupdate = function(e)
	            {
	                var $item = $that.options.intervalitemlist[e];
	                if ($item.parms)
	                    $.post($item.sourceurl, $item.parms, function (data) { var callback = $item.callbackfunction; callback(data); });
	                else
	                    $.post($item.sourceurl, function (data) { var callback = $item.callbackfunction; callback(data); });
	            }
	            runupdate(p);
	        }
	    },
	    addintervalitem: function(url, func, parms)
	    {
	        var $that = this;

	        // add interval item 
	        $that.options.intervalitemlist.push({ sourceurl: url, callbackfunction: func, parms: parms });
            if (parms)
                $.post(url, parms, function (data) { func(data); });
	        else
                $.post(url, function (data) { func(data); });
	    },
	    destroy: function ()
	    {
	        this.element.removeData();
	    }
	});

})(jQuery);