Javascript Function to write file on Ipad

Hi I'm looking for a simple - Working - javascript function that receives a filename + content and creates a file in the same directory. Here is the algorithm : Input : filename : String content : String Output : None , creates a file in the same directory. I know creating files with javascript is fobiden, but I have the same function , working on internet explorer , using ActiveX object for PC (Windows) , i need the same one for Ipad, i dont know if there is an equivalent in Ipad.