var odk1 = Array("om","zam","orn","hel","pub","pro","odk","pub");
var odk2 = Array("muzeum/left3.htm","zamek/left2.htm","ornis/left6.htm","helfst/left7.htm","publik/left5.htm","provas/left4.htm","odkazy/left3.htm","publik/left5.htm");



function ram(a) {
   a=a.toLowerCase();
   b=' '+a;

   levy='left1.htm';
   pravy='main.htm';

  for (i=0;i<odk1.length;i++) {

    if ((b.indexOf(odk1[i],0))>0) {
       levy=odk2[i];
       c=levy.indexOf('/',0);
       pravy=levy.substring(0,c+1)+a;
    }

   }

parent.frames['left'].location=levy;
parent.frames['main'].location=pravy;
}