XML problem

hi,

i got a strange problem.I use xml file for slider images with URL.Everything works great on firefox,chrome,operaa and safari,but on internet explorer1 10-11 there is a problem that links attached to slider images missing.On IE 8-9 it works normally.u can check it on this site http://cajmrsk.cz/

thank for any advice

http://wordpress.org/plugins/wp-supersized/