plugins drag and drop file upload - repost

I would like to make a Custom jquery plugins for multi file uploads with drag and drop. I created a plugin it myself but I had a trouble along the way so I prefer to ask freelancer. So are the specifics: with multi-upload progressbar file-upload with maxconnection example : maxconnection : 1, 1 files in progress and other files pending.. speed-time upload a file type (1 of 3 255 KB / sec, times 29 sec) -error handling in case of trouble type (file too large, unauthorized extensions etc ...) browser supported : Safari,mozilla ,chrome... i know all plugins blueimp, dropzonejs, uploadify etc... so do not use it. It's very important for my commercial project it's a home made plugins... I search a good dev Javascript for make this plugins so if you no know javascript with drag and drop, please do not bid... a short video to see an example [login to view URL]