function Corners(sClass, iCorn){
    iCorn = iCorn || 4;
    $$(sClass).each(function(el){
        for (var i = 1; i <= iCorn; i++) {
            new Element('span', {
                'class': 'corn' + i,
                'html': '&nbsp;'
            }).inject(el);
        }
    })
}

window.addEvent("domready", function(){
    Corners('.corner');
    Corners('.corner2', 2);
})


function gradient(sClass){
    $$(sClass).each(function(el){
        el.addClass('relative');
        new Element('span', {
            'html': ''
        }).inject(el);
    })
}

window.addEvent("domready", function(){
    gradient('.gradient1');
    gradient('.gradient2');
})