...........

onunload=delete FMLstories;

...

var FMLstories = '';

function postFML() {
if(FMLstories != "") { setTimeout( function() { respond( FMLstories ); }, 1000 ); }
}

jQuery.ajax({
        url: "http://m.fmylife.com/random",
        complete: function(data) {
            //FMLstories += data.responseText;
            var foo = data.responseText;
            var poop = foo.between('<p class="text">','</p>');
            if( poop.length <= 130 )
            {
            var stories = poop.replace( /'/g, "" );
            var finalstories = stories.replace( /"/g, "" );
            console.log( finalstories );
            FMLstories += finalstories;
            }
        }
    });