function showmenu(elmnt){document.getElementById(elmnt).style.visibility="visible";}
function hidemenu(elmnt){document.getElementById(elmnt).style.visibility="hidden";}
mm=new Array();function Menu(i,j){var k=i+j;if(mm[k]!=true){mm[k]=true;if(i>0)Kategori(i,'U'+i+'_'+j);if(j>0)Icerik(j,'U'+i+'_'+j);}}