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moarJSFiddle.js

// javascript:(function(){if(typeof(MOAR)%20===%20%27undefined%27)%20{MOAR%20=%20{%20backPocket:%20{},%20tastedGood:%20false%20};}MOAR.dontBlameMe%20=%20function%20undo(){var%20prop,%20style;for(prop%20in%20MOAR.backPocket){for(style%20in%20MOAR.backPocket[prop]){$(prop).style[style]%20=%20MOAR.backPocket[prop][style];}}MOAR.tastedGood%20=%20false;};MOAR.nomNom%20=%20function%20moar(){MOAR.backPocket.header%20=%20{display:%20$(%27header%27).style.display};MOAR.backPocket.sidebar%20=%20{display:%20$(%27sidebar%27).style.display};MOAR.backPocket.content%20=%20{marginLeft:%20$(%27content%27).style.marginLeft%20=%20%27%27};$(%27header%27).style.display%20=%20%27none%27;$(%27sidebar%27).style.display%20=%20%27none%27;$(%27content%27).style.marginLeft%20=%20%2715px%27;MOAR.tastedGood%20=%20true;};if(MOAR.tastedGood%20===%20false){MOAR.nomNom();}%20else%20{MOAR.dontBlameMe();}})();

(function(){

if(typeof(MOAR) === 'undefined') { 
	MOAR = { backPocket: {}, tastedGood: false };
}

MOAR.dontBlameMe = function undo(){
    var prop, style;
    
    for(prop in MOAR.backPocket){
        for(style in MOAR.backPocket[prop]){
            $(prop).style[style] = MOAR.backPocket[prop][style];
        }
    }
    
    MOAR.tastedGood = false;
};

MOAR.nomNom = function moar(){
    
    MOAR.backPocket.header = {
        display: $('header').style.display       
    };
    
    MOAR.backPocket.sidebar = {
        display: $('sidebar').style.display 
    };
    
    MOAR.backPocket.content = {
        marginLeft: $('content').style.marginLeft = '' 
    };
    
    $('header').style.display = 'none';
    $('sidebar').style.display = 'none';
    $('content').style.marginLeft = '15px';
    
    MOAR.tastedGood = true;
};

if(MOAR.tastedGood === false){ 
	MOAR.nomNom(); 
} else { 
	MOAR.dontBlameMe();
}

})();