Generate [file/folder/any] name based on current time

Generate [file/folder] name based on current time. Useful for some automated folder/file creation.

Generate filename (a string basically :P) based on current time.

example:

>> [filename] = genFilename()
filename =
2012_1_18_23_14_44.343

use it to create a folder such as 'code backup', where it might be necessary to automate the code backing up process upon each code edit..!!!.. or anything else.. ;)