lder = document.getElementById('holder'),
        tests = {
            filereader: typeof FileReader != 'undefined',
            dnd: 'draggable' in document.createElement('span'),
            formdata: !!window.FormData,
            progress: "upload" in new XMLHttpRequest
        },
        support = {
            filereader: document.getElementById('filereader'),
            formdata: document.getElementById('formdata'),
            progress: document.getElementById('progress')
        },
        accept