dynamaically change

hi,
i hava following tag in my svg file
<g id='kelum' transform='translate(10,10)>
</g>

i want to dynamically change the translate of above when user click the the some object.

so i did following

node=svgdoc.getElementById(''kelum')
node.setAttributeNS('transform','translate(250,25) ')

but this gives errors.
if you can pls correct me.
thanks,
kelum.

Use

node.setAttributeNS(null,'transform','translate(25 0,25)')

or

node.setAttribute('transform','translate(250,25)')

Michel