/* skrypt menu strony
   created: eol-group.com */

function rozwin(x2){
   if(x2==x1) {x4=x3;x3=1-x3}
   else if(x1!=0) {x3=1;x4=1}
   if(x4==1)D.getElementById('a'+x1).style.display='none';

   if(x3==1)D.getElementById('a'+x2).style.display='block';
   x1=x2;
}