#import modules
import arcpy
import os
import glob

#set parameters for inputs
mxdinloc = arcpy.GetParameterAsText(0)
mxdoutvers = arcpy.GetParameterAsText(1)

#set the values for input versions of ArcMap
if mxdoutvers == "10.1":
    version = "10.1"
    suffix = "_101"
elif mxdoutvers == "10.0":
    version = "10.0"
    suffix = "_10"
elif mxdoutvers == "9.3":
    version = "9.3"
    suffix = "_93"
elif mxdoutverw == "9.2":
    version = "9.2"
    suffix = "_92"

#DowngradeVersions
mxdinloc = os.getcwd()
for pathname, directories, filenames in os.walk(mxdinloc):
    for filename in filenames:
        if filename.lower().endswith(".mxd"):
            #set current map document workspace to handle equal to mxd
            mxd = arcpy.mapping.MapDocument(os.path.join(mxdinloc, filename))
            filename, ext = os.path.splitext(os.path.join(mxdinloc, filename))
            if mxd.dateSaved:
                print mxd.dateSaved
                mxd.saveACopy(filename + suffix + ext, version)
                currentMxd = filename + suffix + ext
                mapDoc=arcpy.mapping.MapDocument(currentMxd)
                print "Updated: " + filename
            else:
            print filename + " did not update."