Detection of glycosylations on Western blotted proteins - (Feb/15/2012 )

what are useful tools (lectins?) to detect N-glycosylations or glycosulphates on Western blot?

i used concanavilin a and horse radish peroxidase in a procedure to stain gels for glycoproteins. it can be adapted for blots (i did).

thank you mdfenko for reliable answer