การอัพโหลดไฟล์ แต่อัพโหลดจาก Browser มือถือครับ Safari ของ Iphone

function getExtension(filename){
    var parts = filename.split('.');
    return parts[parts.length - 1];
}

function isImage(filename){
    var ext = getExtension(filename);
    switch(ext.toLowerCase()){
        case 'jpg':
        case 'gif':
        case 'bmp':
        case 'png':
            return true;
    }
    return false;
}

function isDoc(filename){
    var ext = getExtension(filename);
    switch(ext.toLowerCase()){
        case 'doc':
        case 'docx':
        case 'pdf':
        case 'xls':
        case 'xlsx':
            return true;
    }
    return false;
}

function isZip(filename){
    var ext = getExtension(filename);
    switch(ext.toLowerCase()){
        case 'rar':
        case 'zip':
        case '7z':
            return true;
    }
    return false;
}

function isTranscript(filename){
    var ext = getExtension(filename);
    switch(ext.toLowerCase()){
        case 'jpg':
        case 'pdf':
        case 'gif':
            return true;
    }
    return false;
}